1978 GMC C15 Automatic Transmission Parts

Essential 1978 GMC C15 Automatic Transmission Parts

Dorman – Help – Auto Transmission Case Vent (Part No.14689)

Auto Transmission Case Vent

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$6.99
This transfer case vent is designed to match the fit and function of the original vent on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this transfer case vent is designed to match the fit and function of the original vent on specified vehicles
  • Restores functionality – reliable replacement for an original vent that has failed due to blockage or fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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ATP – AT FRT PUMP BUSHING (Part No.CB-4)

AT FRT PUMP BUSHING

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$10.99
AT FRT PUMP BUSHING

Dorman – Help – Clutch Pilot Bushing (Part No.14650)

Clutch Pilot Bushing

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$8.29
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.

Product Features:
  • Direct replacement – this clutch pilot bushing matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bushing is a reliable replacement for an original part that has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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ATP – Automatic Transmission Detent Cable (Part No.Y-103)

Automatic Transmission Detent Cable

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$29.99
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.

Product Features:
  • Includes brackets, grommets, etc to match original
  • Helps transmission determine ideal downshift
  • Improves vehicle performance
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ATP – ATP Automatic Transmission Detent Cable (Part No.Y-100)

ATP Automatic Transmission Detent Cable

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$22.99
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.

Product Features:
  • Includes brackets, grommets, etc to match original
  • Helps transmission determine ideal downshift
  • Improves vehicle performance
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ATP – AT MODULATOR VALVE (Part No.JX-76)

AT MODULATOR VALVE

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$48.99
AT MODULATOR VALVE

Carquest Premium – Automatic Transmission Modulator Valve (Part No.VMC1023)

Automatic Transmission Modulator Valve

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$45.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Edelbrock – Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions (Part No.8026)

Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions

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$18.99
Product Features:
  • Edelbrock Part # 8026 GM Transmission adapter is for use with 2004R, 700R4, 4L60 transmissions.
  • This kit relocates the pin position on an Edelbrock Carburetor when hooking up to a throttle valve style transmission (700R4, 2004R, 4L60).
  • The pin location is critical as the TV controls line pressure, shift points, shift firmness, and part throttle downshifts.
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ATP – AT CONTR SOLENOID (Part No.SE-1)

AT CONTR SOLENOID

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$111.99
AT CONTR SOLENOID

ATP – AUTO TRANS BAND (Part No.JX-58)

AUTO TRANS BAND

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$27.99
AUTO TRANS BAND

Mr. Gasket – Automatic Transmission Dipstick With Tube (Part No.9764)

Automatic Transmission Dipstick With Tube

from

$30.99
Compliment your engine compartment with one of these beautifully chrome plated dipsticks and tubes. Includes O-ring.

Product Features:
  • Fits GM TH350 Chevy specific modify for others
  • 27 in. length
  • Chrome plated steel
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B & M – Aluminum Braided Dip Stick, Fits TH-350 Transmission (Part No.22165)

Aluminum Braided Dip Stick, Fits TH-350 Transmission

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$92.99
What better way to check you oil level by using one of B&M’s transmission fluid dipsticks? The cap screws into the tube and is O-ring sealed, while the base of the tube has a sealing grommet where it goes into the transmission.

Product Features:
  • Automatic Transmission Dip Stick
  • Mounts to bellhousing
  • Sold as a kit
  • Natural finish
  • Fits TH350 & TH350C
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ATP – AT OIL PUMP ORING (Part No.SO-21)

AT OIL PUMP ORING

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$8.99
AT OIL PUMP ORING

ATP – AT CLUTCH PLATE (Part No.JC-50)

AT CLUTCH PLATE

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$8.99
AT CLUTCH PLATE

ATP – AT SOLENOID SEAL (Part No.JO-15)

AT SOLENOID SEAL

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$3.99
AT SOLENOID SEAL

1978 GMC C15 Automatic Transmission Parts

Maybe you’re in the middle of a full rebuild of that 1978 GMC C15. Maybe you just need a couple of Automatic Transmission Parts. Either way, Advance Auto Parts has 21 different Automatic Transmission Parts in our inventory ranging from $3.99 to $111.99. That means you can find the exact parts or products you need to keep that 1978 GMC C15 running smoothly.

Automatic Transmission Parts are only as good as their brand. We stock 8 different brands to make sure you have plenty of trusted parts to choose from for your 1978 GMC C15. Pro-King, ATP, and Mr. Gasket are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Automatic Transmission Parts for your 1978 GMC C15, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 417 reviews in this category, some of the top rated parts include Auto Transmission Case Vent with 5.0 stars and AT SOLENOID SEAL with 5.0 stars.

So if you’re in the market for aftermarket Automatic Transmission Parts to keep your 1978 GMC C15 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Automatic Transmission Parts Brands To Make Your 1978 GMC C15 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 GMC C15 demands trusted brand parts and products to keep it running. Many trusted brands of Automatic Transmission Parts make up Advance Auto Parts’ inventory, and all are ready to help make your C15 the best it can be. Be sure to browse some of our top Automatic Transmission Parts brands and parts.

Popular Carquest Automatic Transmission Parts

We carry Carquest parts in our stock across Transmission Modulator Valves categories, plus more. For a 1978 GMC C15, our most popular Carquest Automatic Transmission Parts include:
Automatic Transmission Vacuum Modulator
from $51.05
(1)
Automatic Transmission Vacuum Modulator
Transmission Modulator Valves

FAQs for 1978 GMC C15 Automatic Transmission Parts

What are the most purchased Automatic Transmission Parts for the 1978 GMC C15?

Out of 21 Automatic Transmission Parts for the 1978 GMC C15, the most popular in our inventory are:
Automatic Transmission Dipstick With Tube
from $30.99
(5)
Automatic Transmission Dipstick With Tube
Transmission Dipsticks
Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions
from $18.99
This product is not rated
Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions
Automatic Transmission Kickdown Cable Brackets
ATP Automatic Transmission Detent Cable
from $22.99
(1)
ATP Automatic Transmission Detent Cable
Detent Cables

What are the top-rated 1978 GMC C15 Automatic Transmission Parts?

Top-rated Automatic Transmission Parts for your 1978 GMC C15 based on customer reviews/ratings are:
Auto Transmission Case Vent
from $6.99
(4)
Auto Transmission Case Vent
“Works for multiple vent areas of any vehicle, I got it for my gas tank fume vents!”
AT SOLENOID SEAL
from $3.99
(2)
AT SOLENOID SEAL
“Perfect”
AT MODULATOR VALVE
from $23.99
(1)
AT MODULATOR VALVE
“Worked great.”