I had 37" tires on 9.75" wide rims and about 4 to 4.5" of backspacing. Wheels did not rub the leafs nor front or rear of the wheel arches.

I have some 8.25" wide rims with about 3" of backspacing. Anyone running this backspacing with 37" tires and have rubbing at the wheel arches or elsewhere?

 

3" is very little BS

What lift do you have on your truck these days

 

Brad, currently the front shock length is just short of 19".

This is the same lift I had when clearance testing the 37" tires before. The big clearance advantage is the aftermarket bumper. I recently removed my PMF and SD leafs, and am back to the stock F350 leafs with one additional helper leaf.

Long story but I plan on going back to SD leafs, just a different method.

 

And 37s fit? Even with the typical 4.5" back spacing?

 

Yes they did.

 

Throw a spacer on to mimic the 3" BS and try it out

 

double post

 

Idk what backspacing these are, but tried one and it had around 1" of clearance from the leaves.

 

Standard 4.5" back spacing

 

FordTruckFan89, Agreed with Brad, your rims look to be similar the ones in my pic, 4-1/2" backspacing.

I'll just have to mount them and check for clearance, but I have a set of rims that only have 3" of back spacing. This puts the wheel farther away from the leafs, but the whole wheel now swings on a larger radius, which brings the front and back of the inside of the wheel well arches into play.

Interesting how much more clearance your vintage of bumpers have. Nice looking truck!

 

Thanks LeoJr, it's a work in progress. I'm surprised how well that one fit on a stock f250. Usually has 285s, wheels 3" bs will be tight,