[MJN]

Originally Posted by kipps

Was a 235/85r16 the standard size during the squarebody era? Were any taller tires fitted? Has anyone found any other tall & skinny tire sizes that look good on these heavier trucks and are easily available?

I have 16x10 rims and 305/70r16(33x12.5) tires on my truck right now. Once I get it back on the road, I want something a little more fuel mileage friendly. I also want to go to a stock tall-and-skinny look, instead of the fat mud tire look that I have right now. I don't mind going a little taller than stock as long as I can keep the width within check.

Standard sizes can be found at the GM Heritage Site in the Vehicle Info Packets- https://www.gmheritagecenter.com/gm-...tion-kits.html
Best to find the specific year you have. For 1980, for example, standard tires on a C/20 were 8.75Rx16.5, C/30 got 9.50R-16.5D Load Range D for fronts and 9.50R-16.5 Load Range E for rears.