ok now that I'm running 32's i know the speedo is off

so when i get to the point i can change it with my x-cal what do i change it to
it does not give me a choice on tire size just rpm/speedo?

specs
4.10 rearend
32/11.5r15 diameter of 99 inch

thanks

Try using a site like this:

http://www.tirerack.com/tires/Spec.jsp?make=BFGoodrich&model=All-Terrain+T%2FA+KO&tirePageLocQty=

and changing the revs per mile.

XCal2, not by size but by "revs per mile". Works great.