302RideOrDie

As you can tell, I got a 94 Gt, manual, the code reads it has a 3.08 gears factory (inside door panel) I have 16 inch after market rims on it. I don't know by how much, but I now my speedometer is off by 5-10 mph. On the way high cruise control is locked in at 60, the speed limit is 55, and people pass me fairly quickly, it doesn't even feel like im going 60. When im in another car they dont pass at 60... Any idea's as to why my speedo would be off?

randy78045

your tires are probably throwing your speedo off... get a correction gear... someone here can tell you where..

302RideOrDie

hmm, anyone know correction gear shiizit?

7upedition

SEARCH for speedo gear theres a billion and one threads and websites that go over all the possibilites/combinations of ring and pinion gears and tires. you may want to have a buddy whose car is entirely factory(tires and all) set his cruise at 60 and stay the same distance behind and see what your speedo reads .. that will give you a baseline to work off of... jmo