Gray Ghost Silverado

iTrader: (1)

So as the title states, who has done one and what problems did you encounter?

I'm currently changing from the 4L80 segment swap to a 4L70 file and going to utilize a Frost Conversion harness. I've been having a hard time with getting the truck to operate well with Speartech harness, front ISS lead, and 4L80 file from a van. The problems being:

1. Jumpy speedo from ISS crosstalk.
2. False Torque Management Signals which cause an extreme reduction in ignition timing.

I'm going to update this thread with pics and info to clear up some of the muckety muck about an 80E swap.

Gray Ghost Silverado

iTrader: (1)

Hmm, maybe not so many people have done this? What about into an 08 TBSS with the separated ECM/TCM?

Jake's Performance

iTrader: (2)

I have done a 4L80E in a 2008 TBSS. What do you need to know? I can help you out but you need to call. I believe you called me yesterday.

Gray Ghost Silverado

iTrader: (1)

Yeah Jake that was me. I actually was able to flash the TCM with the 4L70 file with my HPTuners software. I was ridiculously happy. Now I'm just waiting on the conversion harness from Frost, that way I can see if I can get to the transmission codes with the new beta. No front ISS lead is going to be so effing sweet

Anyways thanks for all your help and advice on the phone. Your guys actually taught me something about HPTuners that I didn't know!