Need a stock 2010 Express van T43 OS 24254909 [Archive]

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cynight

August 20th, 2019, 02:16 PM

I need a .ctz file for a T43 6L90 trans from a 2010 Chevy/ GM Express/ Savana van with a 6.6 Duramax, engine OS is 12628594.

Trans OS: 24254909
Trans Cal ID: 24255732
Trans System ID: 24252157

Any help is greatly appreciated.

cynight

September 20th, 2019, 09:42 AM

I had the Chevy dealer flash my transmission using my bench flash harness. It will work great for my LMM/ 6L90 swap since the 2010 van was the only vehicle that came with both. An Allison trans is too large for the car it's going in and the 6L90 can be built to handle decent power.