Radical Fred
New Member
What is the widest 15" tire that i can fit on my 66 without relating the leaf springs?
Depends on what wheels and what offset the wheels have. I am running aftermarket 15x8 aftermarket wheels with a 5.5" backspacing (+27mm offset) and easily clear 255-60-15 tires that tuck completely in the fenderwell. There is enough room to go even wider or taller if wanted with my combination however I wanted to have staggered sizing with a 27" diameter. A more positive offset wheel will push closer to the leafsprings and more negative offset will push the assembly outward toward the fender lip. Hope that helpsWhat is the widest 15" tire that i can fit on my 66 without relating the leaf springs?
15x10's would definitely be a no go if keeping it inside the fender well was the goal, plus that would require a wider tire to fit the wheel widthI'm running 275/60s on a 15x8 wheel with 4.5" backspace with plenty of clearance, even with 2" lowering blocks in the rear. 15x10 wheels would probably be cutting it close.
I’m running American Racing Torq-thrust D’s 15x7 all around. Cooper Cobra 215 65’s on the front and 255 70’s on the back. It’s every inch I could get without rubbing. Can’t remember the back spacing in those wheels but you can look it up and I’m thinking sidewall to sidewall on rear tires is 10-1/2” but you can look that up as well on Cooper website. I did all the homework before I spent the money to determine the biggest I could fit. Good luck! Post pics!!What is the widest 15" tire that i can fit on my 66 without relating the leaf springs?