1975 GMC C25 Automatic Transmission Parts

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Keep Your 1975 GMC C25 in Top Shape with Quality Automatic Transmission Parts

Whether you’re repairing or upgrading your Automatic Transmission Part, using high-quality parts is key to keeping your 1975 GMC C25 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Transmission Dipsticks, Transmission Bushings, and Transmission Solenoids. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Automatic Transmission Parts from Trusted Brands

Looking for a reliable Automatic Transmission Part? We’ve got you covered with options from brands you know and trust like Pro-King and Dorman. For example, Pro-King Automatic Transmission Parts start at just $21.99 with an average 4.0 star rating. Dorman offer similar pricing and quality, backed by strong customer feedback. With over 153 reviews and a solid 3.6 star average, you can shop with confidence knowing other GMC C25 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1975 GMC C25 Automatic Transmission Part at Advance Auto Parts is around $85.36, with a range that starts at $7.29 and goes up to $318.99. With 25 options in stock from 8 trusted brands, finding the right fit is easy. Popular picks like "Mr. Gasket Chrome Automatic Transmission Dipstick & Tube – 27"" Length, 9764", ATP Automatic Transmission Detent Cable, Y-100, and Dorman – Help Clutch Pilot Bushing, 14650 start at just $11.99 and offer a great balance of form and function.

Find Your Specific 1975 GMC C25 Automatic Transmission Parts

Looking for the perfect Automatic Transmission Part for your 1975 GMC C25? You’re in the right place. Below, you’ll find links to various types of Automatic Transmission Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Automatic Transmission Parts, ensuring durability and a precise fit for your GMC C25. Whether you’re driving a 1975 model or another popular model year like 1976, 1977, and 1978, we’ve got you covered. Purchasing Automatic Transmission Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Automatic Transmission Parts that fit your vehicle.

Essential 1975 GMC C25 Automatic Transmission Parts

ATP – ATP AT CONTR SOLENOID, SE-1 (Part No.SE-1)

ATP AT CONTR SOLENOID, SE-1

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$118.99
ATP AT CONTR SOLENOID, SE-1. DRIVELINE – TRANSMISSION PARTS>TRANSMISSION PARTS>SOLENOIDS>SOLENOIDS from ATP
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ATP – ATP Automatic Transmission Clutch Plate, JC-57 (Part No.JC-57)

ATP Automatic Transmission Clutch Plate, JC-57

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$13.79
ATP Transmission Components are exact fit, no compromise replacement parts
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Hooker BlackHeart – Hooker BlackHeart Transmission Cross member, BHS548 (Part No.BHS548)

Hooker BlackHeart Transmission Cross member, BHS548

from

$299.99
These new cross members have been redesigned and are less expensive than the previous cross member & work with engine mounting brackets BHS540 for both the GM LS & Gen-V LT engines. Choose the cross member based on the transmissions that you want to run in your 1973-1987 C10:
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Hooker BlackHeart – Hooker BlackHeart Transmission Cross member, BHS549 (Part No.BHS549)

Hooker BlackHeart Transmission Cross member, BHS549

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$311.99
The Hooker BlackHeart BHS549 is a heavy-duty transmission cross member engineered for GM LS and Gen V LT engine swaps into classic GM trucks and SUVs (1973-1987 C10/C20, 1973-1982 Blazer/Jimmy). It’s specifically designed to support 4L80E and 4L85E transmissions, offering bolt-in installation, optimal driveline angles, and maximum exhaust clearance.
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Hooker BlackHeart – Hooker BlackHeart Transmission Cross member, BHS550 (Part No.BHS550)

Hooker BlackHeart Transmission Cross member, BHS550

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$318.99
The Hooker BlackHeart BHS550 is a purpose-built transmission cross member designed for GM LS and Gen V LT engine swaps into classic GM trucks and SUVs. It’s engineered to support 700R4, 4L60, 4L60E, and 4L65E transmissions, offering a bolt-in solution with excellent exhaust clearance and proper driveline geometry.
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Hooker BlackHeart – Hooker BlackHeart Polyurethane Transmission Mount – Black, 71223029HKR (Part No.71223029HKR)

Hooker BlackHeart Polyurethane Transmission Mount - Black, 71223029HKR

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$46.09
Hooker continues to set the standard of performance with the BlackHeart line of drivetrain components. These BlackHeart transmission mounts are constructed of durable polyurethane to handle the stress and vibration of high horsepower applications while still lasting longer than rubber mounts. Our 3-hole design allows multiple mounting options for factory chassis or custom hot rod applications and feature a unique built-in safety lock to keep from separating under high torque loads. Fits 1 or 2 bolt GM and Jeep applications.
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Hooker BlackHeart – Hooker BlackHeart Polyurethane Transmission Mount – Red, 71223030HKR (Part No.71223030HKR)

Hooker BlackHeart Polyurethane Transmission Mount - Red, 71223030HKR

from

$49.99
Hooker continues to set the standard of performance with the BlackHeart line of drivetrain components. These BlackHeart transmission mounts are constructed of durable polyurethane to handle the stress and vibration of high horsepower applications while still lasting longer than rubber mounts. Our 3-hole design allows multiple mounting options for factory chassis or custom hot rod applications and features a unique built-in safety lock to keep from separating under high torque loads. Fits 1 or 2-bolt GM and Jeep applications.
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ATP – ATP AT MODULATOR VALVE, JX-66 (Part No.JX-66)

ATP AT MODULATOR VALVE, JX-66

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$21.99
ATP AT MODULATOR VALVE, JX-66. DRIVELINE – TRANSMISSION PARTS>TRANSMISSION PARTS>TRANSMISSION CONTROL MODULES>TRANSMISSION CONTROL MODULES from ATP
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Carquest Premium – Carquest Automatic Transmission Modulator Valve, VMC1023 (Part No.VMC1023)

Carquest Automatic Transmission Modulator Valve, VMC1023

from

$48.99
The transmission modulator valve is a vacuum operated mechanical device located on the transmission case. This valve will have a actuator rod extended into the transmission valve body inside the transmission which will control the flow of transmission fluid within the transmission to place the transmission in the most optimal forward gear selection.
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Pro-King – Pro-King Automatic Transmission Vacuum Modulator, MD-28 (Part No.MD-28)

Pro-King Automatic Transmission Vacuum Modulator, MD-28

from

$33.99
Fully adjustable vacuum modulator to maintain accurate shift points.
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(11 reviews)
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B & M – B & M Kickdown Switch Kit For Th400 Transmission, 20297 (Part No.20297)

B & M Kickdown Switch Kit For Th400 Transmission, 20297

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$103.99
When swapping the TH400 transmission into any vehicle, this kit makes installation of the transmission’s kickdown feature a snap. This switch mounts to either a TH700R4, TH200, TH200-R4 or TH350 throttle cable bracket.
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B & M – B & M Aluminum Braided Dip Stick, Fits Th-400 Transmission, 22166 (Part No.22166)

B & M Aluminum Braided Dip Stick, Fits Th-400 Transmission, 22166

from

$132.99
Dress up your street rod with this stainless steel braided dipstick featuring a billet aluminum knob with an o-ring for a leak proof seal. The dipstick fits GM TH400 automatic transmissions and mounts to the Bell housing. The handle has the B&M logo laser etched on the top showing everyone you appreciate quality.
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Mr. Gasket – "Mr. Gasket Chrome Automatic Transmission Dipstick & Tube – 27"" Length, 9764" (Part No.9764)

"Mr. Gasket Chrome Automatic Transmission Dipstick & Tube - 27"" Length, 9764"

from

$36.99
Includes dipstick with chromed steel handle and chromed steel dipstick tube with mounting tab. 27 inch long.
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(5 reviews)
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Edelbrock – Edelbrock Throttle & Auto Trans Kickdown Bracket, 8030 (Part No.8030)

Edelbrock Throttle & Auto Trans Kickdown Bracket, 8030

from

$83.99
Edelbrock part No: 8030 Throttle, Cruise Control & Trans. Kick-Down Mounting Bracket is designed for Small-block Chevy (1995 & earlier – non-Vortec) with Chrome Plated Finish.
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ATP – ATP Automatic Transmission Universal Detent Cable 28 To 48 Inches, Y-754 (Part No.Y-754)

ATP Automatic Transmission Universal Detent Cable 28 To 48 Inches, Y-754

from

$54.99
Detent cables connect the throttle mechanism to the transmission. Old cables can bind, break, or just become sluggish. The best repair is to replace the old cable with a new one. Pioneer detent cables are designed to fit and function just like the original part to ensure durability and long life.
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ATP – ATP Automatic Transmission Detent Cable Seal, SO-36 (Part No.SO-36)

ATP Automatic Transmission Detent Cable Seal, SO-36

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$4.19
ATP Transmission Seals and Gaskets are exact fit, no compromise replacement parts
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ATP – ATP Automatic Transmission Detent Cable, Y-103 (Part No.Y-103)

ATP Automatic Transmission Detent Cable, Y-103

from

$35.99
Detent cables connect the throttle mechanism to the transmission. Old cables can bind, break, or just become sluggish. The best repair is to replace the old cable with a new one. Pioneer detent cables are designed to fit and function just like the original part to ensure durability and long life.
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ATP – ATP Automatic Transmission Detent Cable, Y-100 (Part No.Y-100)

ATP Automatic Transmission Detent Cable, Y-100

from

$25.99
Detent cables connect the throttle mechanism to the transmission. Old cables can bind, break, or just become sluggish. The best repair is to replace the old cable with a new one. ATP Detent cables are designed to fit And function just like the original part to ensure durability And long life.
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(1 reviews)
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Dorman – Help – Dorman – Help Clutch Pilot Bushing, 14650 (Part No.14650)

Dorman - Help Clutch Pilot Bushing, 14650

from

$11.99
This clutch pilot bushing is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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(1 reviews)
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ATP – ATP Automatic Transmission Front Pump Bushing, CB-4 (Part No.CB-4)

ATP Automatic Transmission Front Pump Bushing, CB-4

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$11.79
ATP Transmission Components are exact fit, no compromise replacement parts
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Dorman – Dorman Clutch Pilot Bushing, 690-014.1 (Part No.690-014.1)

Dorman Clutch Pilot Bushing, 690-014.1

from

$7.29
This clutch pilot bushing is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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ATP – ATP Automatic Transmission Band (Front), JX-58 (Part No.JX-58)

ATP Automatic Transmission Band (Front), JX-58

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$29.99
ATP Transmission Components are exact fit, no compromise replacement parts
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Most Popular Transmission Dipsticks for 1975 GMC C25s

Enhance your 1975 GMC C25 with one of the 2 Transmission Dipsticks we have in stock, starting at just $36.99.
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Mr. Gasket – "Mr. Gasket Chrome Automatic Transmission Dipstick & Tube – 27"" Length, 9764" (Part No.9764)

"Mr. Gasket Chrome Automatic Transmission Dipstick & Tube - 27"" Length, 9764"

from

$36.99
Includes dipstick with chromed steel handle and chromed steel dipstick tube with mounting tab. 27 inch long.
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(5 reviews)
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B & M – B & M Aluminum Braided Dip Stick, Fits Th-400 Transmission, 22166 (Part No.22166)

B & M Aluminum Braided Dip Stick, Fits Th-400 Transmission, 22166

from

$132.99
Dress up your street rod with this stainless steel braided dipstick featuring a billet aluminum knob with an o-ring for a leak proof seal. The dipstick fits GM TH400 automatic transmissions and mounts to the Bell housing. The handle has the B&M logo laser etched on the top showing everyone you appreciate quality.
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Best-Selling 1975 GMC C25 Transmission Bushings

Upgrade your C25 with one of our 3 best-selling Transmission Bushings, earning an average 4 stars rating across 1 reviews.
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Dorman – Help – Dorman – Help Clutch Pilot Bushing, 14650 (Part No.14650)

Dorman - Help Clutch Pilot Bushing, 14650

from

$11.99
This clutch pilot bushing is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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(1 reviews)
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Dorman – Dorman Clutch Pilot Bushing, 690-014.1 (Part No.690-014.1)

Dorman Clutch Pilot Bushing, 690-014.1

from

$7.29
This clutch pilot bushing is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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ATP – ATP Automatic Transmission Front Pump Bushing, CB-4 (Part No.CB-4)

ATP Automatic Transmission Front Pump Bushing, CB-4

from

$11.79
ATP Transmission Components are exact fit, no compromise replacement parts
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Top-Quality Transmission Solenoids for 1975 GMC C25s

Choose a high-quality OEM or aftermarket Transmission Solenoid for GMC C25s and enjoy top-notch performance from $118.99.
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ATP – ATP AT CONTR SOLENOID, SE-1 (Part No.SE-1)

ATP AT CONTR SOLENOID, SE-1

from

$118.99
ATP AT CONTR SOLENOID, SE-1. DRIVELINE – TRANSMISSION PARTS>TRANSMISSION PARTS>SOLENOIDS>SOLENOIDS from ATP
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Top Picks for 1975 GMC C25 Detent Cables

Invest in one of our 3 durable Detent Cables for your 1975 GMC, knowing you’re getting trusted brands and expert craftsmanship.
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ATP – ATP Automatic Transmission Detent Cable, Y-100 (Part No.Y-100)

ATP Automatic Transmission Detent Cable, Y-100

from

$25.99
Detent cables connect the throttle mechanism to the transmission. Old cables can bind, break, or just become sluggish. The best repair is to replace the old cable with a new one. ATP Detent cables are designed to fit And function just like the original part to ensure durability And long life.
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(1 reviews)
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ATP – ATP Automatic Transmission Detent Cable, Y-103 (Part No.Y-103)

ATP Automatic Transmission Detent Cable, Y-103

from

$35.99
Detent cables connect the throttle mechanism to the transmission. Old cables can bind, break, or just become sluggish. The best repair is to replace the old cable with a new one. Pioneer detent cables are designed to fit and function just like the original part to ensure durability and long life.
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ATP – ATP Automatic Transmission Universal Detent Cable 28 To 48 Inches, Y-754 (Part No.Y-754)

ATP Automatic Transmission Universal Detent Cable 28 To 48 Inches, Y-754

from

$54.99
Detent cables connect the throttle mechanism to the transmission. Old cables can bind, break, or just become sluggish. The best repair is to replace the old cable with a new one. Pioneer detent cables are designed to fit and function just like the original part to ensure durability and long life.
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Top-Rated Transmission Modulator Valves for 1975 GMC C25s

Make a smart move for your 1975 GMC C25 with products all priced from $21.99 to $66.99.
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Pro-King – Pro-King Automatic Transmission Vacuum Modulator, MD-48 (Part No.MD-48)

Pro-King Automatic Transmission Vacuum Modulator, MD-48

from

$21.99
Fully adjustable vacuum modulator to maintain accurate shift points.
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(11 reviews)
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Pro-King – Pro-King Automatic Transmission Vacuum Modulator, MD-28 (Part No.MD-28)

Pro-King Automatic Transmission Vacuum Modulator, MD-28

from

$33.99
Fully adjustable vacuum modulator to maintain accurate shift points.
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(11 reviews)
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B & M – B & M Modulator, 20234 (Part No.20234)

B & M Modulator, 20234

from

$51.99
The B&M vacuum modulator is fully adjustable and allows you to fine-tune your shift points and shift feel. This is done by turning the adjustment screw inside of the vacuum line connection for more or less diaphragm preload, thus raising or lowering part throttle shift points and line pressures. For GM TH350 and TH400 automatic transmissions.
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(2 reviews)
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ATP – ATP AT MODULATOR VALVE, JX-76 (Part No.JX-76)

ATP AT MODULATOR VALVE, JX-76

from

$51.99
ATP AT MODULATOR VALVE, JX-76. DRIVELINE – TRANSMISSION PARTS>TRANSMISSION PARTS>TRANSMISSION CONTROL MODULES>TRANSMISSION CONTROL MODULES from ATP
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ATP – ATP AT MODULATOR VALVE, JX-66 (Part No.JX-66)

ATP AT MODULATOR VALVE, JX-66

from

$21.99
ATP AT MODULATOR VALVE, JX-66. DRIVELINE – TRANSMISSION PARTS>TRANSMISSION PARTS>TRANSMISSION CONTROL MODULES>TRANSMISSION CONTROL MODULES from ATP
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Carquest Premium – Carquest Automatic Transmission Modulator Valve, VMC1023 (Part No.VMC1023)

Carquest Automatic Transmission Modulator Valve, VMC1023

from

$48.99
The transmission modulator valve is a vacuum operated mechanical device located on the transmission case. This valve will have a actuator rod extended into the transmission valve body inside the transmission which will control the flow of transmission fluid within the transmission to place the transmission in the most optimal forward gear selection.
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Carquest Premium – Carquest Automatic Transmission Modulator Valve, VMC1051 (Part No.VMC1051)

Carquest Automatic Transmission Modulator Valve, VMC1051

from

$66.99
The transmission modulator valve is a vacuum operated mechanical device located on the transmission case. This valve will have a actuator rod extended into the transmission valve body inside the transmission which will control the flow of transmission fluid within the transmission to place the transmission in the most optimal forward gear selection.
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Top-Rated Automatic Transmission Part Brands For Your 1975 GMC C25

When it comes to finding the perfect Automatic Transmission Part for your 1975 GMC C25, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 8 trusted brands. We carry the most popular Automatic Transmission Part brands including Dorman and Pro-King, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $11.99. Purchasing a Automatic Transmission Part from us here at Advance Auto Parts is a smart move for both you and your 1975 GMC C25, providing peace of mind with parts that meet or exceed OEM standards.

Popular Dorman 1975 GMC C25 Automatic Transmission Parts

If you’re looking for a top-quality Automatic Transmission Part for your 1975 GMC C25, Advance Auto Parts has exactly what you need with our selection of Dorman Automatic Transmission Parts. We have 1 Dorman Automatic Transmission Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $11.99, you’ll find the perfect Automatic Transmission Part for your needs and budget. Dorman Automatic Transmission Parts for the 1975 GMC C25 come highly rated, with over 1 customer reviews and an impressive average rating of 4.2 stars. Choosing a Dorman Automatic Transmission Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Dorman - Help Clutch Pilot Bushing, 14650
from $11.99
(1)
Dorman – Help Clutch Pilot Bushing, 14650
“Fit my 350 sbc and M22 muncie, was magnetic, indicating iron / steel but I didn’t have another bushing to compare it to, maybe they all have some iron”

Top-Quality Pro-King 1975 GMC C25 Automatic Transmission Parts

For those in search of a high-quality Automatic Transmission Part for their 1975 GMC C25, Advance Auto Parts offers a great selection of Pro-King Automatic Transmission Parts. With 2 Pro-King Automatic Transmission Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Automatic Transmission Parts start at just $21.99, with an average price of $27.99, giving you a range of options to suit your budget. Backed by over 22 customer ratings and an average rating of 4.0 stars, Pro-King Automatic Transmission Parts provide both reliability and excellent performance. Choosing a Pro-King Automatic Transmission Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Pro-King Automatic Transmission Vacuum Modulator, MD-48
from $21.99
(11)
Pro-King Automatic Transmission Vacuum Modulator, MD-48
“Part was in stock, price was good.”
Pro-King Automatic Transmission Vacuum Modulator, MD-28
from $33.99
(11)
Pro-King Automatic Transmission Vacuum Modulator, MD-28
“I have a 1988 Buick Reatta that recently begun to fail to shift. After trying things such as changing the filter and fluid, we eventually were recomme”

FAQs for 1975 GMC C25 Automatic Transmission Parts

What are the best-selling Automatic Transmission Parts for 1975 GMC C25s?

Out of 25 Automatic Transmission Parts that fit 1975 GMC C25s, the following parts are the top sellers:

What’s the price range for 1975 GMC C25 Automatic Transmission Parts?

The prices of Automatic Transmission Parts for the 1975 GMC C25 range from $7.29 up to $318.99 for the most premium parts.

What is the average price of an Automatic Transmission Part for a 1975 GMC C25?

The average price for Automatic Transmission Parts for the 1975 GMC C25 is $85.36. Keep in mind the variety of part types within our Automatic Transmission Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Automatic Transmission Parts for other GMC C25 model years?

Yes, we carry Automatic Transmission Parts for 2 model years of GMC C25s between 1976 and 1978. The following model years are the most popular for Automatic Transmission Part purchases: 1978, 1977, and 1976.

What are the cheapest Automatic Transmission Parts for my 1975 GMC C25?

The cheapest 1975 GMC C25 Automatic Transmission Parts we carry are:

Does Advance Auto Parts sell Automatic Transmission Parts for any other 1975 GMC models?

What are the top-rated Automatic Transmission Parts that fit the 1975 GMC C25?

Based on 153 reviews by customers, our 1975 GMC C25 Automatic Transmission Parts have an average customer rating of 3.6 stars. These are the highest-rated categories of Automatic Transmission Parts for the 1975 GMC C25 and their top-rated products:

What types of Automatic Transmission Parts do you sell for my 1975 GMC C25?

As of 8/2/26, these are some of the most in-demand types of Automatic Transmission Parts for a 1975 GMC C25:

Can I get help with 1975 GMC C25 Automatic Transmission Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Automatic Transmission Parts and more.

What is your return policy for GMC C25 Automatic Transmission Parts?

Advance Auto Parts keeps returns simple. For new GMC C25 Automatic Transmission Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

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