Different sized tires on rear axle.

[Swamp Donkey]

I have 285's on my truck but not on the spare. It is the stock 265. What will happen if I drive about 200 miles like this? Should I get my lazy butt out there and switch the 265 to one of the front so my rear diff has the same size tires.



Thanks.

 

[Matt400]

I wouldn't on mine, I'm lazy too!

 

[CLAYTON]

I don't know if it makes a big difference with out limited slip but if you do have LS then I would definitely switch it to the front.

 

[Nate]

No big deal with an open diff. Bad idea if you have a limited slip.

 

[Swamp Donkey]

Well, I got my lazy butt out there in the rain and mud and put the 265 on the front. The things we do for the health of these trucks!

 

[RockinJ]

Running one (1) different sized tire on any axle may possibly throw an ABS code since that wheel speed sensor would be registering at a different RPM than the others.

 

[nickleinonen]

Running one (1) different sized tire on any axle may possibly throw an ABS code since that wheel speed sensor would be registering at a different RPM than the others.

true, but throwing a code is better than damaging the internals of a LSD



[i messed up the lsd that i had in my 97 tahoe doing this [stock 254/75 spare paired with a 265/75 tire... less than 100km like that - never worked right after that]