Jakey77

Thanks for the info…this answered my question! The PO must have not known he had 4.11 and put the adapter on…it has been. Reading 10pm faster for at least 40k miles 😭

Oh yeah…I’m pretty much have to shift out of 1st immediately. What is the benefit of 4.11 vs 3.7?

I don’t know…how would I calculate this. Get rear wheels off ground…one rotation to how many driveshaft spins equals what? I don’t remember the Po saying anything about gear ratio change but it doesn’t make sense that I’m reading 3 mph faster...

I’ve had this truck for about 10 years and the PO install the speedometer adapter. It wasn’t until just recently that I realized my speedometer is reading 10 mph faster than I’m actually driving. I removed the adapter and now speedometer is only...