rim fitment
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
Here's a great tire size calculator! Try and keep the total wheel size below 33 to avoid a lift. Both those sizes appear to be below 32" so you should be good.
Tire size calculator
However, determining offset & backspacing is dependent upon the actual wheel you choose and of course which tire you're gonna go with.
Try this calculator.
Autolounge.net | Calculators | Tire Spacing and Offset
Tire size calculator
However, determining offset & backspacing is dependent upon the actual wheel you choose and of course which tire you're gonna go with.
Try this calculator.
Autolounge.net | Calculators | Tire Spacing and Offset
Senior User
Joined: Jan 2008
Posts: 461
Likes: 0
a 305/40/22 looks to be about 31.5" tall so no trouble on the diameter at least. the 305/35/24 should still be under 33" so also no lift needed.
You may need a little more backspacing than stock though for the wider tire. I know a 285 clears no problem so maybe 1" more backspace?
There are folks on here that run 305 and 315s so they might be able to tell you what backspace they run.
You may need a little more backspacing than stock though for the wider tire. I know a 285 clears no problem so maybe 1" more backspace?
There are folks on here that run 305 and 315s so they might be able to tell you what backspace they run.
Thread
Thread Starter
Forum
Replies
Last Post
icantdo55
1987 - 1996 F150 & Larger F-Series Trucks
5
Oct 3, 2007 12:04 PM
78CREW
1973 - 1979 F-100 & Larger F-Series Trucks
8
Oct 26, 2002 09:49 PM
