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Old 06-06-2017, 07:57 AM   #1
Justutt67
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Default Time for wheels and tires

Anyone know why 3.75" back spacing is recommended for Scout II wheels? Is it tire to leaf spring clearance at full turn or tie rod end to wheel clearance or both. I am looking to get wheels and tires for my Scout II and want to get 17" wheels with either a 285/75/r17 or 305/70R17 tire. My Scout has a SOA with stock springs and poly body bushings. I have a hi steer so the hi steer arms bend inward away from the tires so TRE clearance isn't an issue but spring clearance May be at full turn. The reason I am asking is cause every 17" wheel I have found has 4.5" backspacing. My other option if I can't use a 4.5" BS wheel is to have www.stocktonwheel.com Build me a set of 17 X 10's with 3.75" BS. Any one already crossed this path?
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Old 06-06-2017, 08:14 AM   #2
FDChappie
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Default Re: Time for wheels and tires

My 16" rims with 265/75 tires do rub on the springs at full lock. Sorry don't know what the actual back spacing is. They do keep the mud below the belt line though. When the factory 10.5/31-15's were on the Scout they would throw mud on the hood.
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Old 06-06-2017, 10:52 AM   #3
Robert Kenney
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Default Re: Time for wheels and tires

Grab a tape measure and a straight edge. Remove your wheel and take a few measurements.

The OEM wheel BS and width are designed to maintain the center load in a ( tire) in a sound location.

Going up in tire and rim width would require the BS to increase to keep the center close to stock. The only way you can determine your situation is to measure for obstacles through out the turning range. Take into account the tire size and bulge areas.
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Old 07-24-2017, 03:58 AM   #4
Justutt67
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Default Re: Time for wheels and tires

Well I went with Mickey Thompson Classic III wheels in black. 17X9 w/ 4.5" of back spacing. I also went with Toyo Open Country 285/70/17 tires (33X11) for anyone wondering 4.5" backspacing fit just fine at least in a 17" wheel. I still can turn plenty sharp. I adjusted the steering stopper bolts to get maximum turning radius.
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Last edited by Justutt67; 07-24-2017 at 04:11 AM..
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Old 07-24-2017, 04:13 AM   #5
Justutt67
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Default Re: Time for wheels and tires

Here is a pic of tie rod clearance.
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Old 10-08-2019, 09:16 AM   #6
my1972scout
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Default Re: Time for wheels and tires

Quote:
Originally Posted by Justutt67 View Post
Well I went with Mickey Thompson Classic III wheels in black. 17X9 w/ 4.5" of back spacing. I also went with Toyo Open Country 285/70/17 tires (33X11) for anyone wondering 4.5" backspacing fit just fine at least in a 17" wheel. I still can turn plenty sharp. I adjusted the steering stopper bolts to get maximum turning radius.
off topic-- what color is that on your scout? I love it.
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