1969 Buick GS 400 Automatic Transmission Kits
Keep Your 1969 Buick GS 400 in Top Shape with Quality Automatic Transmission Kits
Whether you’re repairing or upgrading your Automatic Transmission Kit, using high-quality parts is key to keeping your 1969 Buick GS 400 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Transmission Shift Kits, Transmission Rebuild Kits, and Transmission Master Repair Kits. 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.
Competitive Prices and Extensive Inventory
The average price for a 1969 Buick GS 400 Automatic Transmission Kit at Advance Auto Parts is around $187.39, with a range that starts at $75.99 and goes up to $499.99. With 10 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like AT BANNER KIT, AT OVERHAUL KIT, and AT MASTER REPAIR KIT start at just $76.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Automatic Transmission Kit, don’t forget to check out other key components like Gear Shifters and Cables and Transmission Cooler and Parts. At Advance Auto Parts, we’re here to help you keep your 1969 Buick GS 400 in peak condition, inside and out.
Find Your Specific 1969 Buick GS 400 Automatic Transmission Kits
Looking for the perfect Automatic Transmission Kit for your 1969 Buick GS 400? You’re in the right place. Below, you’ll find links to various types of Automatic Transmission Kits that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Automatic Transmission Kits, ensuring durability and a precise fit for your Buick GS 400. Whether you’re driving a 1969 model or another popular model year like
1968, we’ve got you covered. Purchasing Automatic Transmission Kits 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 Kits that fit your vehicle.
Essential 1969 Buick GS 400 Automatic Transmission Kits
ATP – AT OVERHAUL KIT (Part No.SGS-27)
from
$83.99
AT OVERHAUL KIT
ATP – AT OVERHAUL KIT (Part No.SGS-28)
from
$96.99
AT OVERHAUL KIT
ATP – AT BANNER KIT (Part No.SM-11)
from
$193.99
AT BANNER KIT
ATP – AT OVERHAUL KIT (Part No.JGS-52)
from
$76.99
AT OVERHAUL KIT
ATP – AT BANNER KIT (Part No.JM-10)
from
$168.99
AT BANNER KIT
ATP – AT MASTER REPAIR KIT (Part No.JM-9)
from
$253.99
AT MASTER REPAIR KIT
ATP – AT MASTER REPAIR KIT (Part No.SM-9)
from
$259.99
AT MASTER REPAIR KIT
B & M – Transkit For 65-87 TH400 Transmission (Part No.20229)
from
$499.99
A B&M transmission in a box! Transform your automatic transmission into a full-tilt B&M performer! This is our ultimate transmission kit – it comes complete with full instructions on how to assemble your transmission to B&M specifications.
Product Features:
See More
Product Features:
- High Perf. Friction Materials
- Complete Overhaul Gasket Set
- Modification Components
- Replacement Valves
- Replacement Springs
- Drain Plug Kit Included
ATP – AT SHIFT KIT (Part No.JK-1)
from
$75.99
AT SHIFT KIT
B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)
from
$162.99
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:
See More
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
Popular 1969 Buick GS 400 Automatic Transmission Kits Categories
Most Popular Transmission Shift Kits for 1969 Buick GS 400s
Enhance your 1969 Buick GS 400 with one of the 2 Transmission Shift Kits we have in stock, starting at just $75.99.
B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)
from
$162.99
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:
See More
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
ATP – AT SHIFT KIT (Part No.JK-1)
from
$75.99
AT SHIFT KIT
Best-Selling 1969 Buick GS 400 Transmission Rebuild Kits
Upgrade your GS 400 with one of our 5 best-selling Transmission Rebuild Kits.
ATP – AT BANNER KIT (Part No.JM-10)
from
$168.99
AT BANNER KIT
ATP – AT OVERHAUL KIT (Part No.JGS-52)
from
$76.99
AT OVERHAUL KIT
ATP – AT BANNER KIT (Part No.SM-11)
from
$193.99
AT BANNER KIT
ATP – AT OVERHAUL KIT (Part No.SGS-28)
from
$96.99
AT OVERHAUL KIT
ATP – AT OVERHAUL KIT (Part No.SGS-27)
from
$83.99
AT OVERHAUL KIT
Top-Quality Transmission Master Repair Kits for 1969 Buick GS 400s
Choose a high-quality OEM or aftermarket Transmission Master Repair Kit for Buick GS 400s and enjoy top-notch performance from $253.99.
ATP – AT MASTER REPAIR KIT (Part No.JM-9)
from
$253.99
AT MASTER REPAIR KIT
B & M – Transkit For 65-87 TH400 Transmission (Part No.20229)
from
$499.99
A B&M transmission in a box! Transform your automatic transmission into a full-tilt B&M performer! This is our ultimate transmission kit – it comes complete with full instructions on how to assemble your transmission to B&M specifications.
Product Features:
See More
Product Features:
- High Perf. Friction Materials
- Complete Overhaul Gasket Set
- Modification Components
- Replacement Valves
- Replacement Springs
- Drain Plug Kit Included
ATP – AT MASTER REPAIR KIT (Part No.SM-9)
from
$259.99
AT MASTER REPAIR KIT
FAQs for 1969 Buick GS 400 Automatic Transmission Kits
What are the best-selling Automatic Transmission Kits for 1969 Buick GS 400s?
Out of 10 Automatic Transmission Kits that fit 1969 Buick GS 400s, the following parts are the top sellers:
- AT BANNER KIT (11238675) – $168.99
- AT OVERHAUL KIT (11238741) – $76.99
- AT MASTER REPAIR KIT (11238799) – $253.99
What’s the price range for 1969 Buick GS 400 Automatic Transmission Kits?
The prices of Automatic Transmission Kits for the 1969 Buick GS 400 range from $75.99 up to $499.99 for the most premium parts.
What is the average price of an Automatic Transmission Kit for a 1969 Buick GS 400?
The average price for Automatic Transmission Kits for the 1969 Buick GS 400 is $187.39. Keep in mind the variety of part types within our Automatic Transmission Kit category, where you are likely to find a wide range of prices across a variety of parts and components.
What are the cheapest Automatic Transmission Kits for my 1969 Buick GS 400?
The cheapest 1969 Buick GS 400 Automatic Transmission Kits we carry are:
- AT SHIFT KIT (11239173) – $75.99
- AT OVERHAUL KIT (11238741) – $76.99
- AT OVERHAUL KIT (11238824) – $83.99
- AT OVERHAUL KIT (11238757) – $96.99
- Transpak For 65-87 TH400 Transmission (17130002) – $162.99
Does Advance Auto Parts sell Automatic Transmission Kits for any other 1969 Buick models?
Yes. We stock Automatic Transmission Kits for 7 other popular 1969 Buick models. Some of the most popular are 1969 LeSabre Automatic Transmission Kits, 1969 Skylark Automatic Transmission Kits, 1969 Riviera Automatic Transmission Kits, 1969 Electra Automatic Transmission Kits, and 1969 Special Automatic Transmission Kits.
What types of Automatic Transmission Kits do you sell for my 1969 Buick GS 400?
As of 11/2/25, these are some of the most in-demand types of Automatic Transmission Kits for a 1969 Buick GS 400:
Can I get help with 1969 Buick GS 400 Automatic Transmission Kit orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Buick Automatic Transmission Kits and more.
What is your return policy for Buick GS 400 Automatic Transmission Kits?
Advance Auto Parts keeps returns simple. For new Buick GS 400 Automatic Transmission Kits and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.