Will these tires fit?

[J-20DartGuy]

Hey guys, I'm looking to fit a set of 285/75R16 tires on my 81 J-20. Will they fit without rubbing? No lift on truck and the springs have no sag. Is this size comparable to 31in. 33 in. or what? Thanks for any help.

[River Beast]

Go to www.4lo.com (http://www.4lo.com) they have a GREAT 4x4 calculator that will tell you what the conversion is....dunno if they will rub or not...sorry

[joe]

Height wise you should be ok but I don't know about width?
The 285/75R16's are 32.8" in dia. about what 33's are in reality. The dia shouldn't be a problem if your suspension is good. I run 33x9.5's on one of my J-4000's with stock springs(in good shape) and they work just fine. I don't know how wide your tires are though? If they're up in the 11"-12" width range you may have a prob rubbing?

[Stuka]

285/75R15 is 11.4" wide, and 32.1" tall.

[BIGYELLOW78J10]

I can run 33"x12.5r15 on my 78 J-10. Up front are some coopers, which started out at a diameter of 32.4" or so. The rear has mickey thompson mtx's and they are 32" in diameter and about 12.4" at the widest(according to the website). I have never had a problem with rubbing. However, I have yet to have the truck off camber off road and I have good springs. I would think you are good to go. My E-brake cables do come close to the rear tires, but not close enough to rub.

Good luck,

Daniel