Drivetrain› Automatic Transmissions and Components
Trans Go Performance
C4 1970-81 Reprogramming Kit
SKU: T09L 40-2
Moderate — 2–4 hours
Description
The kit includes necessary springs, gaskets, and hardware for installation. It is compatible with all 1970 and later Ford C-4 automatic transmission valve bodies, with the exception of C-5 models that use a single bolt for the filter.
Fitment
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Available on iOS & Android
Specifications
| Brand | Trans Go Performance |
| Part Number | T09L 40-2 |
Videos
F#%KED TRANS? Transgo Reprogramming Kit install - C4 Auto in Mustang! Iron Empire EP 188
We Upgrade a Ford C4 Transmission
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How to identify different versions of the Ford C4/C5 Trans.
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Adjusting modulator valve on Ford C4,C6,FMX transmissions.
How to step by step install a transgo shift kit for a 45RFE 545RFE automatic transmission
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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