Speedo Correction?

[LoneRam]

I am curious if anyone has found a solution to correcting the speedo with 315/75? If so, how much $$ Thanks

 

[DavidD]

would like to know also!

I hope someone replies I to would like to know I have 315's and would love to fix the speedo

 

[StakeMan]

I have been using the Superlift Tru-Speed for about 3 months. The Superlift works with ABS and costs about $180. I got mine at 4 wheel parts wholesalers.

 

[RADdodge]

Rickson Tire has the Superlift TruSpeed Sensor Calibrator. I bought one from them when they first came out and it works perfectly. I have 19. 5x285 tires and was a little over 10% off. Now, according to Washington state mile markers, I'm within 1/10th of a mile in 150 miles. I'd say that was real good. v

 

[DEZLPWR]

The Abbott box works great!

I got mine from JRE for approx. $130. Accuracy is dead on using highway mile markers... .

See signature below.

 

[Blakers]

I got mine from JRE for approx. $130.

You can buy a gps for that and mount it to your dash. That's what I have and it's more accurate that the speedometer. With 265-15 tires my speedometer indicates about 5 mph faster than I'm going, so it should be about right on with 215s.



Blake