03 3500 tire size

[newnamlawn]

I need to put new tires on my 03 3500 CC dually. I want to go larger than the stock LT215/85R16 but don't want to have to change rims. Any suggestions on how big I can go would be greatly appreicated. Thanks

[midnight8100]

You might try 235/85-16's

 

They would be pushing it a little on clearance between the dual rears but should work. A co-worker has this size on his early 90's F*rd dually and it looks good.

 

Try doing a search on that size here, it seems that someone here tried this tire size on a 3500 GM dually.

[RonJ]

The 235's only leave 1/4 inch of space between the dual rear wheels. They will touch with a little lower tire pressure or a moderate load. You can buy spacers (2 inch) to solve this problem. I've run them on several gm trucks. towing a heavy trailer with no problems. All my driving is around town and 10 miles up & down the beltway (65 mph). You might have a blowout with extended highway speeds.