Drivetrain› Automatic Transmissions and Components

Trans Go Performance

TH350 Reprogramming Kit

$73.29

SKU: T09L 350-1&2

In Stock
In Stock
Ships by Jul 29
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The TransGo 350-1&2 is a reprogramming kit designed for the General Motors Turbo Hydra-Matic 350 automatic transmission. This kit improves shift performance and durability by providing additional oil flow to combat wear and exhaust cross leaks. It is intended for use on THM 350 non-lockup transmissions manufactured from 1969 to 1981.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandTrans Go Performance
Part NumberT09L 350-1&2

Videos

Install: B&M Shift Improver Kit 30262 for 1968-81 GM TH350 Automatic Transmissions

Install: B&M Shift Improver Kit 30262 for 1968-81 GM TH350 Automatic Transmissions
4T65E 1-2 shift before and after TransGo shift kit/new PCS

4T65E 1-2 shift before and after TransGo shift kit/new PCS
Install: B&M Vacuum Modulator for GM TH350 & TH400 Automatic Transmissions 20234

Install: B&M Vacuum Modulator for GM TH350 & TH400 Automatic Transmissions 20234
79 Trans am th350 Shift kit

79 Trans am th350 Shift kit
How to install a TransGo TH350 High Performance Shift Kit

How to install a TransGo TH350 High Performance Shift Kit
FAIRBANKS TRANS-ACTION TH350 SHIFT KIT INSTALL

FAIRBANKS TRANS-ACTION TH350 SHIFT KIT INSTALL
The new Transgo 6L80 TOW&PRO kit highlight. @transgoshiftkit

The new Transgo 6L80 TOW&PRO kit highlight. @transgoshiftkit
Shop Talk w Ed - TURBO 350 Transmission - Shift Kit & a Fix - Ed Smith shows BarryT #edsmith

Shop Talk w Ed - TURBO 350 Transmission - Shift Kit & a Fix - Ed Smith shows BarryT #edsmith
TH350 Transmission shift kit for free.

TH350 Transmission shift kit for free.
TH350 Transgo TH350 Shift Kit Installation

TH350 Transgo TH350 Shift Kit Installation
Chevy TH350 Transgo Shift Kit

Chevy TH350 Transgo Shift Kit
Transgo shift kit for 4T65E transmission 3800

Transgo shift kit for 4T65E transmission 3800

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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