GMCforum: GMCnet » Why not fix one ton scrub radius with wheel offset?

Home » Public Forums » GMCnet » Why not fix one ton scrub radius with wheel offset?

Show: Today's Messages :: Polls :: Message Navigator

Re: Why not fix one ton scrub radius with wheel offset? [message #361915 is a reply to message #361905]

Fri, 22 January 2021 08:45

RF_Burns

Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada

Karma:

Senior Member

My understanding is the same knuckle was used on the 3/4 and 1-ton 4x4 pickups in the late 80's and early 90's (the years the one-ton kits wear made from).

The knuckle was designed for single-wheel pickups which from my Googling had OEM wheel offsets of 25-30mm with 28 being common.

For one-ton pickups, the dual wheels had offsets of 125mm. So to use a dual wheel on the front a spacer was required to compensate for the additional offset of the dual wheel. (125mm - 28mm = 97mm = approx 4") So a 4" spacer puts the dual wheel at the same position as a single wheel which the knuckle was designed for.

So a 125mm offset dual wheel with a 4" spacer should be at the same position as a wheel with a 28mm offset and no spacer.

So I guess you could run 28mm offset rims on the front with a one-ton setup if the wheel clears the calipers. But what would you then carry for a spare tire? You would need to carry a dually for a spare rear and a 28mm for a spare front. OR carry a spacer so you could use a dually for the front in case of a flat... but the nuts holding the aluminum spacer can be difficult to remove.

But I might be all wrong...

Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that

Report message to a moderator

[Message index]

		Why not fix one ton scrub radius with wheel offset? By: Joe Weir on Thu, 21 January 2021 17:56
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: jimk on Thu, 21 January 2021 18:01
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Joe Weir on Thu, 21 January 2021 21:55
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: jimk on Thu, 21 January 2021 22:30
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Zandr Milewski on Fri, 22 January 2021 22:12
		Re: Why not fix one ton scrub radius with wheel offset? By: JohnL455 on Fri, 22 January 2021 08:45
		Re: Why not fix one ton scrub radius with wheel offset? By: RF_Burns on Fri, 22 January 2021 08:45
		Re: Why not fix one ton scrub radius with wheel offset? By: JohnL455 on Fri, 22 January 2021 08:55
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: James Hupy on Fri, 22 January 2021 09:37
		Re: Why not fix one ton scrub radius with wheel offset? By: Joe Weir on Fri, 22 January 2021 10:22
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Zandr Milewski on Fri, 22 January 2021 16:53
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Joe Weir on Fri, 22 January 2021 18:45
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Zandr Milewski on Fri, 22 January 2021 16:15
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Joe Weir on Fri, 22 January 2021 18:54
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: James Hupy on Fri, 22 January 2021 19:18
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: sgltrac on Fri, 22 January 2021 21:19
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Zandr Milewski on Fri, 22 January 2021 22:05
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Zandr Milewski on Fri, 22 January 2021 21:36
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: James Hupy on Fri, 22 January 2021 22:00
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Matt Colie on Sat, 23 January 2021 09:50
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: James Hupy on Sat, 23 January 2021 11:01
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Matt Colie on Sat, 23 January 2021 15:49
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: James Hupy on Sat, 23 January 2021 16:55
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: dsmithy on Sat, 23 January 2021 22:42
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Zandr Milewski on Fri, 22 January 2021 21:17
		Re: Why not fix one ton scrub radius with wheel offset? By: RF_Burns on Fri, 22 January 2021 20:52
		Re: Why not fix one ton scrub radius with wheel offset? By: JohnL455 on Sat, 23 January 2021 08:58
		Re: Why not fix one ton scrub radius with wheel offset? By: jhbridges on Sun, 24 January 2021 08:18
		Re: [GMCnet] Why not fix one ton scrub radius with wheel offset? By: Keith V on Sun, 24 January 2021 15:15

Previous Topic:	[GMCnet] Parts
Next Topic:	Looking for advice

Goto Forum:

-=] Back to Top [=-

Current Time: Sun Oct 06 01:52:10 CDT 2024

Total time taken to generate the page: 0.00515 seconds