Put in the Ford Racing Speed Cal this last friday that i bought like 3 months ago And when its hooked up my speedometer is like pegged/suck at 55 and wont move but if i discount the speedcal goes back to normal, checked my wired a few times thought i had a bad ground but everything seems to be all wired up correctly.. My ABS light has been on for like ever and it throws a code not sure if thats messing with it or not Thought i would start here and see if anyone else has had problems with them.. Thanks!
Ford Racing one, http://www.latemodelrestoration.com...Speed-Dial-Speedometer-Adjuster-M-4209ADPT-AC Got it from LMR so maybe.. Taking the car into ford maybe friday or something may have them check it out..
I had my mustang dallas speedcal for about 4-5 years on the car. If you keep having trouble with the Ford Racing one just look for that kind, I do not know if they make it anymore but its been very reliable for me.
