i have a 93 z 28 6 speed, with 4:10 gears, where can i find something to re callibrate my speedometer so it will be right. and how much. can i order it from slp catalog.? anything would be helpful thanks

 

You have to get the SLP calibrator if your lucky you can get it used I picked mine up for 85 shipped.

Dakota sells a box but I never got an answer back they said it wouldn't work on cars with ABS but I don't see how that has anything to do with it ????