TU/TD Column Shifter & Wiring

[First c10]

Originally Posted by Joyridin

Did you need to flash the TCM to get this to work? I was under the assumption that for a truck transmission, you had to have the TCM flashed to a Corvette tune in order for this to work, or there is a box that a few people were selling to bypass the tuning.

It does take someone with hptuners to be able to set the tu/td setting to “wired”
FYI. This info is for an e38 ECM. Not sure on other types.
I believe the box you are talking about is basically what I built. Mines Just not in a box.
Scott