ODD TIRE SIZES ON 4 WD??

[smokey93]

I JUST BOUGHT A 98 D2500 4 WD WITH CUMMINS AND 5 SPEED TRANS. IT HAS 2 DIFFERENT SIZE TIRES FROM FRONT TO BACK. I THINK IT WILL PROBLY DAMAGE THE TRANSFER CASE IF I USE 4 WD. CAN ANYONE TELL ME IF I AM RITE??? TIRES ARE ABOUT 1 INCH DIFFERENCE IN SIZE. TRANKS JIM!!

 

[rebel_horseman]

You're right. The smaller tire will spin more than the larger tire. Off road where it's soft it won't really matter for short periods but if you're running on the highway for a long time you'll fry your t-case and/or an axle.

 

[Goofyexponent]

Agreed. What are the two sizes? The proper size door tire will be on the driver side door post.

 

[rebel_horseman]

I'm pretty sure all the 2500s came with 245/75R16 tires up until they started putting the aluminum wheels on them around 2001 I think. There's ample room for 285s and maybe 315s at most.