This isn't diesel related but I'm prepared to have my winkle smacked because I've searched everywhere and I'm at a total loss.

I need new rear tires and I can't find any tire charts online that include my truck. I called Tire Rack and they don't have it listed either.

Wasn't there two different sizes? One for RVs and another for light commercial?

 

What size is on it now, and what are you trying to do. At one time the tire size was on the sticker on the door. I haven't looked in years, so I don't know if it is on yours or not.

Stock tires I would think would be 235/85 r16 load range E.

 

There were two F-Superduty classes. One became the F-450, the other became the F-550. The cutoff was a GVW rating of 15000 lbs. 15000 & less had 235/85-16 E tires, and over 15000 had 19.5" tires & wheels. Mine has a GVW of 15000. and calls for 235/85-16 load range E tires...

I believe a VIN decode would tell you which you have, if you don't have the stock wheels...

 

a 94 superduty will have 16 inch tires. the 19.5's started in 99

 

I might be wrong, but I think I saw a door jamb sticker on a '93 FSD with a 17,500 GVW, and calling for 19.5 wheels...

 

Hello "GOOGLE" it. They might not mach the truck but the tire size, someone will give you a price. Google tire size explanations. Tj and phy are arguing over the size of the rim and the load range. 235/85-16 E tires have a 16 inch rim and a load range of E. 235 is the width of the tire( not important). 85 is the distance of the fire from the rim to the tread (also not important unless you want to pimp your ride). Do you pull heavy or a lot. If not you can get away with cheaper tires but then why do you have a 450.

 

My '89 F Super Duty has 235/85-16.