resetting speedo to accurate

[JeepCoMJ]

I have 4.10 gears, 32" tires on our 02 libby. speed sensor is in rear end, and regear could bring it close to accurate but only in increments that match between original tire size/ratio. obviously, that's a limiting factor.

I know you can have them reset/adjusted at a dealership. But will they be able to program it for 32" tires? or did the factory put limitations on recognized sizes? I want it done right, but don't want to waste the $$$ if they can't make it right.

Thanks,

Pat

 

[teckman02]

i think that it can be done with the DRB 3 but also have you looked into this TruSpeed™ Speed Sensor Recalibrator · Superlift · www.superlift.com buddy of mine has one in his WJ and it works great. the nice thing about it if you run 2 different sizes of tires is has 2 settings

 

[JeepCoMJ]

if I cannot reset it with the scanner, I will have to do something like that....but I'd rather do it right.

thank you very much for the link.

 

[JeepCoMJ]

though, I probably won't buy one from them because I can't see their price posted plainly on the website. That's just dumb.

 

[tommudd]

How far are you off?
When I regeared and with 32s / stock setting I'm only 4 MPH off.
I could get it a little closer I suppose but when brand spanking new it was off that much
comparing to GPS by the way

 

[JeepCoMJ]

Just test drove. with the 4.10's, I'm off by 1mph according to an old police issue radar gun.

not enough to trouble me at all.

she drives great!