wrenchmonster

Rotating your tires will not make a difference because you are trying to determine if the varience between the front and rear is the problem. You're not changing anything in the equation. A+B=C or B+A=C ... it makes no difference.

Deflating the tires will also make no significant difference. This is not a rubber balloon we're talking about, it's a tire. Deflating/Inflating will only change the level of the vehicle and the contact pattern with the ground.

A 1/2 inch difference seems small but is deceptively large. You can't think of it like a piece of lumber. If you were to use the string method I decribed above you'd be surprised how much difference a 1/2 inch makes when you compare the two. The two pieces of string will not be different by 1/2 and inch, but maybe more like 1 1/2 inches. I'm no good at math at all, but maybe some of the math gurus will chime in.

Disconnecting the rear drive line will probably work, I just think the tire change is more conclusive since you will maintain load on both axles.

Beyond the string method, you could also get a piece of chalk and mark the tires 90 degrees to the ground. Then drive in a straight line for a while, get out and see where the chalk lines are front to rear.

95SASMudRunner

It has been a problem since the start, i just have not known as i was dealing with separate issues; i have now resolved, ive got a buddy who im gonna borrow his tires and see how that plays out, i am hoping that this resolves the problem, though the only other issue i have not trouble shot it the front hubs, i suppose it is possible that one is not engaging fully but enought to not cause problems when not under load.

The Detroit guy said anything over 1% can cause problems and by doing the math a 1/2 inch is just over 1% thus if im pushing the 3/4-1" im over. Wouldnt have thought this was true but go figure.