Volvo VNL D12 auto to manual transmission

A shop I take mine to did it for one truck Ishift to manual 13 speed. He swore he would never do it again. The hardest part was making the wiring harnesses as they had to be made by hand. And they had trouble getting the resistances right. He thought it would not be that hard. Was he ever cranky about it.Good luck on yours

 

I've got the same problem had a 13 speed manual installed in mine and it's still not working had the three pedal auto shift 10 speed in it

 

I can fix the reving problem making speedo work is doable but. Not cheap need new vecu I’ve done this job 3 times will never do it again. Pain in the ###.