Chevrolet G20 Automatic Transmission Kits

Your One-Stop Shop For Trusted Chevrolet G20 Automatic Transmission Kits

If you’re in search of Chevrolet G20 Automatic Transmission Kits aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 37 Automatic Transmission Kits from top brands with prices ranging from $16.79 to $409.99.

Beyond great prices, we stock trusted brands manufacturing all types of Automatic Transmission Kits for your Chevrolet G20. Of the 5 OEM and aftermarket parts brands we carry, some of the most popular are Pro-King, ATP, and B & M.

And don’t forget to read customer reviews across all Automatic Transmission Kits categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Automatic Transmission Kits have to cost top dollar, and we prove it. Browse our top Chevrolet G20 Automatic Transmission Kits below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Chevrolet G20 Automatic Transmission Kits

FAG US – SHAFT SEAL (Part No.SS2571)

SHAFT SEAL

from

$16.79
SHAFT SEAL

B & M – Shift Improver Kit, 82-93 TH700R4 (Part No.70239)

Shift Improver Kit, 82-93 TH700R4

from

$73.99
The B&M Shift Improver Kit the easiest way to get the performance you’ve always wanted out of your automatic transmission, two modes to select from: Heavy Duty, or Street/Strip. It’s our least expensive and simplest to install kit.

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
  • Improves Transmission Life
  • Transmission Removal Not Required
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ATP – AT SHIFT KIT (Part No.SK-3)

AT SHIFT KIT

from

$102.99
AT SHIFT KIT

B & M – ShiftPlus, 4L60E and 4L80E (Part No.70380)

ShiftPlus, 4L60E and 4L80E

from

$90.99
The B&M Shift Plus, recalibrates your transmission’s hydraulic system electronically which firms up the shifts and reduces heat and slippage. A simple flip of the switch allows you to choose which shift firmness setting you want to run.

Product Features:
  • Installs In Minutes
  • Reduces Slippage and Heat
  • 50 State Emissions Legal
  • Recalibrates Hydraulic System
  • Recalibrates Electronically
  • Fun and Pleasurable Drive
  • Extends Transmission Life
  • Simple Flip Of Switch
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B & M – Shift Improver Kit For 65-87 TH400 Transmission (Part No.20260)

Shift Improver Kit For 65-87 TH400 Transmission

from

$62.99
The B&M Shift Improver Kit the easiest way to get the performance you’ve always wanted out of your automatic transmission, two modes to select from: Heavy Duty, or Street/Strip. It’s our least expensive and simplest to install kit.

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
  • Improves Transmission Life
  • Transmission Removal Not Required
See More

ATP – AT SHIFT KIT (Part No.JK-1)

AT SHIFT KIT

from

$75.99
AT SHIFT KIT

B & M – Shift Improver Kit For 68-81 TH-350 Transmission (Part No.30262)

Shift Improver Kit For 68-81 TH-350 Transmission

from

$62.99
HEAVY DUTY-Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. STREET/STRIP-Positive shifts for high performance street use or for competitive events. Hardest, quickest possible shift.

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
See More

B & M – Transpak For 82-93 TH700R4 Transmission (Part No.70235)

Transpak For 82-93 TH700R4 Transmission

from

$174.99
The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.

Product Features:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
  • Downshift At Any Speed
  • Great For Trailer Towing
  • For Heavy Loads Driving Downhill
See More

Pro-King – Automatic Transmission Deluxe Rebuild Kit (Part No.KS-59)

Automatic Transmission Deluxe Rebuild Kit

from

$399.99
One of the most complete rebuild kits in the automatic transmission industry today. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:
  • Include steels, frictions, gaskets, and filter
  • Includes Band and Modulator (if applicable)
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B & M – Transmission Kit, Transkit 68-81 TH-350 Transmission (Part No.30229)

Transmission Kit, Transkit 68-81 TH-350 Transmission

from

$389.99
B&M Transkits give you the same high-quality components that are used in all B&M Street and Strip transmissions. They also include special directions on how to modify your case, pump, and components.

Product Features:
  • High Perf. Friction Materials
  • Complete Overhaul Gasket Set
  • Modification Components
  • Replacement Valves
  • Replacement Springs
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ATP – AT MASTER REPAIR KIT (Part No.JM-9)

AT MASTER REPAIR KIT

from

$253.99
AT MASTER REPAIR KIT

Pro-King – Automatic Transmission Deluxe Rebuild Kit (Part No.KS-12)

Automatic Transmission Deluxe Rebuild Kit

from

$254.99
One of the most complete rebuild kits in the automatic transmission industry today. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:
  • Include steels, frictions, gaskets, and filter
  • Includes Band and Modulator (if applicable)
See More

Pro-King – Automatic Transmission Basic Rebuild Kit (Part No.KB-862)

Automatic Transmission Basic Rebuild Kit

from

$118.99
This Basic Rebuild Kit contains a complete gasket Kit and friction set. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:
  • Does not include steels or filter
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Pro-King – Automatic Transmission Basic Rebuild Kit (Part No.KB-864)

Automatic Transmission Basic Rebuild Kit

from

$131.99
This Basic Rebuild Kit contains a complete gasket Kit and friction set. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:
  • Does not include steels or filter
See More

Pro-King – Automatic Transmission Deluxe Rebuild Kit (Part No.KS-17)

Automatic Transmission Deluxe Rebuild Kit

from

$232.99
One of the most complete rebuild kits in the automatic transmission industry today. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:
  • Include steels, frictions, gaskets, and filter
  • Includes Band and Modulator (if applicable)
See More

Pro-King – Automatic Transmission Deluxe Rebuild Kit (Part No.KS-15)

Automatic Transmission Deluxe Rebuild Kit

from

$222.99
One of the most complete rebuild kits in the automatic transmission industry today. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:
  • Include steels, frictions, gaskets, and filter
  • Includes Band and Modulator (if applicable)
See More

B & M – Master Overhaul Kit, TH350 Transmission (Part No.21042)

Master Overhaul Kit, TH350 Transmission

from

$327.99
The Master Racing overhaul kits are supplied with all of the gaskets, seals, bushings, and friction material required for a complete high performance or racing trans overhaul. Does not come with transbrake gaskets or components.

Product Features:
  • Complete High Perf. Or Racing Trans. Overhaul
  • Includes Only OEM Valvebody Gaskets
  • Instructions Not Included
See More

ATP – AT OVERHAUL KIT (Part No.JGS-52)

AT OVERHAUL KIT

from

$76.99
AT OVERHAUL KIT

ATP – AT OVERHAUL KIT (Part No.SGS-28)

AT OVERHAUL KIT

from

$96.99
AT OVERHAUL KIT

ATP – AT OVERHAUL KIT (Part No.SGS-27)

AT OVERHAUL KIT

from

$83.99
AT OVERHAUL KIT

ATP – AUTOMATIC TRANS PART (Part No.CGS-32)

AUTOMATIC TRANS PART

from

$109.99
AUTOMATIC TRANS PART

ATP – AT BANNER KIT (Part No.SM-11)

AT BANNER KIT

from

$193.99
AT BANNER KIT

ATP – AT BANNER KIT (Part No.JM-10)

AT BANNER KIT

from

$168.99
AT BANNER KIT

ATP – AT BANNER KIT (Part No.CM-26)

AT BANNER KIT

from

$207.99
AT BANNER KIT

Automatic Transmission Kits Brands You Can Trust For Your Chevrolet G20

5 trusted brands of Automatic Transmission Kits line our shelves, ready to help keep your Chevrolet G20 running smooth. Below are some of the most popular brands and their top Automatic Transmission Kits offerings:

Popular B & M Automatic Transmission Kits

B & M products for the Chevrolet G20 span several categories. Some of the highest-rated B & M Automatic Transmission Kits that will fit your Chevrolet G20 are:
Shift Improver Kit, 82-93 TH700R4
from $73.99
(3)
Shift Improver Kit, 82-93 TH700R4
Transmission Shift Kits
ShiftPlus, 4L60E and 4L80E
from $90.99
(1)
ShiftPlus, 4L60E and 4L80E
Transmission Shift Kits

Top Chevrolet G20 Automatic Transmission Kits from Pro-King

Your Chevrolet G20 will be purring again thanks to Pro-King brand Automatic Transmission Kits available for online order or in-store pick up. Popular Pro-King parts include:
Automatic Transmission Deluxe Rebuild Kit
from $282.99
(5)
Automatic Transmission Deluxe Rebuild Kit
Transmission Master Repair Kits
Automatic Transmission Deluxe Rebuild Kit
from $385.99
(3)
Automatic Transmission Deluxe Rebuild Kit
Transmission Master Repair Kits
Automatic Transmission Deluxe Rebuild Kit
from $232.99
(2)
Automatic Transmission Deluxe Rebuild Kit
Transmission Master Repair Kits

Most Purchased Chevrolet G20 Automatic Transmission Kits from Pro-King

When you buy the most frequently purchased Pro-King brand Automatic Transmission Kits, you can be confident it will be the right part for your Chevrolet G20. Here are the Pro-King Automatic Transmission Kits Advanced Auto customers buy the most:
Automatic Transmission Deluxe Rebuild Kit
from $385.99
(3)
Automatic Transmission Deluxe Rebuild Kit
Transmission Master Repair Kits
Automatic Transmission Deluxe Rebuild Kit
from $282.99
(5)
Automatic Transmission Deluxe Rebuild Kit
Transmission Master Repair Kits
Automatic Transmission Deluxe Rebuild Kit
from $399.99
(1)
Automatic Transmission Deluxe Rebuild Kit
Transmission Master Repair Kits

FAQs for Chevrolet G20 Automatic Transmission Kits

What are the most purchased Automatic Transmission Kits for the Chevrolet G20?

Out of 37 Automatic Transmission Kits for the Chevrolet G20, the most popular in our inventory are:
Automatic Transmission Basic Rebuild Kit
from $156.99
This product is not rated
Automatic Transmission Basic Rebuild Kit
Transmission Master Repair Kits
Automatic Transmission Deluxe Rebuild Kit
from $399.99
(1)
Automatic Transmission Deluxe Rebuild Kit
Transmission Master Repair Kits
Automatic Transmission Basic Rebuild Kit
from $84.99
This product is not rated
Automatic Transmission Basic Rebuild Kit
Transmission Master Repair Kits

What are the top-rated Chevrolet G20 Automatic Transmission Kits?

Top-rated Automatic Transmission Kits for your Chevrolet G20 based on customer reviews/ratings are:
Automatic Transmission Deluxe Rebuild Kit
from $222.99
(1)
Automatic Transmission Deluxe Rebuild Kit
“everyone should know a little about there car or truck”
Automatic Transmission Deluxe Rebuild Kit
from $258.99
(1)
Automatic Transmission Deluxe Rebuild Kit
“This product identifies as early 87 (KS-39). I talked to store and they said my application was early. I did not trust the answer so I used the “Chat ”