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Justin
Official CCB Member
Joined: Sun Oct 10, 2010 12:04 am Posts: 6198 Images: 0 Location: Lakewood
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Rear axle alignment
I discovered to day that my rear axle about 1/4" off center when measured with a plumb bob from the frame. The spring perches are spaced equally on the tubes as measured from the flange ends. Does this matter? I'm not sure how much the rear axle moves around under cornering loads, so I'm not sure if this is within normal spec. All of the rear spring and shackle bushings are new rubber ones.
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Sat Aug 23, 2014 9:24 pm |
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Kinder
Official CCB Member
Joined: Wed Sep 29, 2010 10:03 pm Posts: 4371 Images: 0 Location: Parker, CO
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Re: Rear axle alignment
Is it still in the air? It may move around a bit when loaded.
_________________ Best to Date MPG: 26.6
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Sat Aug 23, 2014 9:48 pm |
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Justin
Official CCB Member
Joined: Sun Oct 10, 2010 12:04 am Posts: 6198 Images: 0 Location: Lakewood
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Re: Rear axle alignment
It's supporting the weight of the truck. I've got jack stands under the ends of the rear axle. I'm wondering if it settled to one side after I put weight on it.
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Sat Aug 23, 2014 9:51 pm |
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Gunnibronco
Official CCB Member
Joined: Mon Jan 03, 2011 6:07 pm Posts: 4074 Location: Gardnerville, NV
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Re: Rear axle alignment
After I installed my new shackle bushings, the left/rear corner sat much higher than the right. After a little driving it settled down to level. I'm sure it would have measured off center if I had checked.
_________________ "America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." – Claire Wolfe 74-AWB 98", ZF5, Atlas4, TGW HP1060 and HP1014 axles, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, York OBA, 4x4x2, custom dash & gauges 72 U15- Explorer Sport-Candyapple Red (1 of 141)
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Sat Aug 23, 2014 10:02 pm |
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Justin
Official CCB Member
Joined: Sun Oct 10, 2010 12:04 am Posts: 6198 Images: 0 Location: Lakewood
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Re: Rear axle alignment
Thanks, that's what I'm figuring. It's easy enough to pull the rear apart that I'll probably get it driveable, run it around a bit and then take it in for a 4 wheel alignment to see where things are.
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Sat Aug 23, 2014 10:04 pm |
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Digger
Official CCB Member
Joined: Fri Jun 21, 2013 8:53 pm Posts: 1276
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Re: Rear axle alignment
1/4" isn't terrible. Many lifted track bar equipped axles are not centered under the truck at ride height so that under compression they strike the bump stops squarely.
If your driver's/passenger's side wheelbases were off by 1/4", I would say fix it, but off-center laterally is far less of an issue.
_________________ Cummins R2.8 diesel, ZF5, AtlasII, HP44/BB9, ARBs, coiled / linked suspension, 37" KO2s, full cage, bumpers, etc. Build Thread:
Average 23.5 mpg, Best tank: 25.1 mpg
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Mon Aug 25, 2014 12:44 pm |
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Justin
Official CCB Member
Joined: Sun Oct 10, 2010 12:04 am Posts: 6198 Images: 0 Location: Lakewood
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Re: Rear axle alignment
That brings some peace of mind, thanks!
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Mon Aug 25, 2014 4:02 pm |
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