78/79 max wheel backspace without spacers
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Senior User
Joined: Oct 2010
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78/79 max wheel backspace without spacers
Is anybody running more than 3.75" of backspace without spacers? I want to go from a 15" to a 20" wheel with 4.75" bs. I'm hoping the extra diameter will let me clear the steering knuckle / tie rod end. Thanks to all responders!
Elder User
Joined: Feb 2004
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I had some used rims/tires on my Bronco in order to see how 35's would fit without a lift. I didn't know the backspacing until a couple days ago when I had the tires taken off the rims. I measured, not 100% accurately by just eyeballing with a tape measure, and they are 4.5" backspacing. That's from the mounting surface to the lip of the rim. I had no issues with the rims touching anything, granted they're 17's and not 15's or 20's like you're dealing with.
Hotshot
Joined: Jul 2002
Posts: 14,285
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From: Bend,OR
your bronco must be a pavement pounder then? if your running a 37" or bigger tire 20" wheels look good. otherwise stick to the 15's maybe do a 17" rim. I thnk 4.5 is about max for backspacing before you hit the radius arms, that is going to happen way before the tierod or any other area hits.
Elder User
Joined: Feb 2004
Posts: 893
Likes: 5
your bronco must be a pavement pounder then? if your running a 37" or bigger tire 20" wheels look good. otherwise stick to the 15's maybe do a 17" rim. I thnk 4.5 is about max for backspacing before you hit the radius arms, that is going to happen way before the tierod or any other area hits.
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