I'm swapping a 3.4 into my 88 2.5 and I have the stock gage cluster with the 85 mph speedo and the tach that red lines at around 6. After searching ive found nothing but do I need to find the gages out of a V6 and replace that for my stock gages?
Sorry for all the questions, my fiero master brother is currently on a cruise and I'm on my own for now.
Yes it's very possible to modify the tach for a V6, but it's infinitely easier to just swap in the electronic board on the back from a V6. If you ask nicely someone might have one laying around in their junk box. Over the summer I was giving away tachs for the price of shipping. I'm all out now, but I'm sure others have them laying around.