Hey guys, I have a 1985 Trans Am with the dreaded 85 speedo. There's a guy near me with a whole 83 cluster for sale with a 140 speedo mechanical driven and all. The gauges seem to be the same, it is out of a v8 car as well. Would this work in my car? My tach is broken as well as the backlights for some reason. Looks like it would drop right in but would like to double check with you guys. He's asking 50 bucks.