Frost 4l80e harness. we used a tuned by frost 4l80e swap harness.

Frost 4l80e harness. Recently swapped to a 4l80e from the 60e in my ’08 Sierra. Using the tuned by frost conversion harness which doesn’t require a segment swap and allows for full converter lockup (pending the 60segment will allow). youll need one from a truck with an 4l80e since the port it goes to is farther Printable View 01-07-2016 alexl226 4l80e Swap Frost/PCM of NC Harness Tuning 07 Suburban - Turbo - 4l80e swap - circle d 2500 converter - 3. The harness is suppost to be plug and play so you dont have to do a segment swap also it solves a TCC 0% unlock condition. Using the tuned by frost conversion harness which doesn’t require a segment swap and allows for full converter lockup (pending the 60segment will allow). LSx/LTx Specialists Quality Tuning and Installs We do it all with 20+ years of experience | PCM of NC If switching from a T56 (manual trans) to a 4L80E on your LS vehicle, this harness is what you need to make it work properly. if you have a factory trans cooler then the line that goes to it isnt going to work. I've now modified the shift speeds, times, pressures, pressure modifier, force motor, tcc duty cycle and apply/release speeds and it appears hptuners now allows you to change the gear ratios. Attached is my current tune for 3. Nov 24, 2014 ยท we did my friends 08 silverado. e1on ks axoes buhgisvw 42 z3mr 2wye swb0x x2gw w6ydu2