hey everyone.. i have a superchips tuner on my truck. I also have a 3.55 limited slip along with 285/75r-16. my question is how accurate is it to change tire size with the tuner and what would i change it to? I kno they are almost 33's but the tuner has only 32.75 or 33.00- which one would be better? a little off subject i also installed a white face background to the stock gauges. the speedo needle was put back at zero but... does it just have to go on the zero line? was is resting on the little pin that stops it from going below zero? any help is great

 

Well, it really depends on the tire...I think technically a 285/75R16 should be about a 33" diameter, but the different manufacturers all have slightly different sizes.

I would just put 33", but either one would be better than stock regardless.

Not really sure about the needle thing, I'd have to go and look, never really paid that much attention to it.

 

well i have the bfgoodrich a/t ko's on but i dont kno the exact tire diameter for them

 

here ya go....all the ATko sizes and their dimensions....
http://www.bfgoodrichtires.com/asset...rain_ta_kd.pdf

U have to have Adobe acrobat Reader to view the chart. It's a free d-load if U don't have it.....here
http://www.adobe.com/