I have a 1990 GMC Sierra SLE 4x4 and the gauge cluster does not have tachometer so i was going to buy an after market one and install that on the side panel between the drivers side window and windshield but then i got to thinking, is it possible to install a transmission temp gauge on the truck? i know most of the k2500 and up have one already installed so i was wondering if its possible and where it would go on the transmission if at all possible.
any tips, hints, or just general knowledge would be greatly appreciated.
thanks!
thomas.