My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

B&M 30229 TransKit Automatic Transmission Rebuild Kit for GM TH-350

(GMC G2500 1979-81, K1500 1979-81, C1500 1979-81, K2500 1979-81, Jimmy 1970-81, C3500 1979-81, K2500 Suburban 1979-81, K3500 1979-81 + 149 more models)

Manufacturer

Picture for manufacturer B&M

Part Number

30229
4 reviews
Sale Price

$478.95

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The B&M 30229 TransKit is a comprehensive performance transmission rebuild kit designed specifically for GM TH-350 (Turbo Hydra-matic 350) automatic transmissions from 1968 to 1981. This complete kit provides everything needed to overhaul and upgrade your TH-350 transmission for improved shift quality, durability, and performance.

Kit Includes:

  • High-performance friction materials for firmer, more consistent shifts
  • Replacement valves engineered for improved hydraulic control
  • Modification components to optimize transmission operation
  • Complete overhaul gasket set for leak-free reassembly

B&M TransKits are designed to address common weak points in factory transmissions while enhancing performance characteristics. The upgraded friction materials provide better holding power and heat resistance compared to stock components, making this kit ideal for street performance, towing, or racing applications. Professional installation and transmission rebuild experience recommended.

Products specifications

Fits

GMC G2500 1979-81, K1500 1979-81, C1500 1979-81, K2500 1979-81, Jimmy 1970-81, C3500 1979-81, K2500 Suburban 1979-81, K3500 1979-81, C15/C1500 Pickup 1969-74, 1979-81, C2500 1979-81, K1500 Suburban 1979-81 + 146 more models

Package Contents

Transmission mount and mounting hardware

Title

B&M 30229 Transmission Kit, Transkit 68-81 TH-350 Transmission

Prop 65

Yes

California Proposition 65 Chemical Name 1

Cadmium and cadmium compounds

California Proposition 65 Chemical Name

Cadmium and cadmium compounds

Gasket Or Seal Included

Yes

Trans Year

1979

Trans Year

1980

Trans Year

1981

Trans Year

1974

Trans Year

1968

Trans Year

1971

Trans Year

1973

Trans Year

1976

Trans Year

1978

Trans Model

GM- TH375B (Auto) 3 Speed

Trans Year

1969

Trans Year

1977

Trans Year

1970

Trans Year

1972

Trans Model

GM- TH350 (Auto) 3 Speed

Trans Year

1975

Bands

Included

Brand

B&M

Category

Transmission

Drain Plug Included

Yes

Emission Code

5

Filter Included

Yes

Gasket Included

Yes

Part Type

Automatic Transmission Shift Kit

Product Type

Automatic Transmission Master Repair Kit

Sub Category

Service Kits

Warning

California Proposition 65

Found this store thru a google search. Had good reviews so I went for it. Liked that they have google checkout. Email notification was great, tracking number was there. Last but not least they had the best price for my Airaid intake tube.

Excellent service, incredibly fast shipping and delivery. Would DEFINITELY do business with again.

I like your prices on parts and ease of navigating on your site.

I have had a very good experience with Autoplicity and will look for more parts here. I called Customer Service and they were very good and accurate with me. It was easy, they were very nice, immediate response, and great price.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy