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Have a Trailing Arm Setup Question

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Old Jun 18, 2007 | 01:07 PM
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Default Have a Trailing Arm Setup Question

So I'm setting up the bearing on my trailing arms today and keep coming up tight before I even add a shim, just have bearings and the spacer and from what I'm seeing I need to sand down the spacer to get .001-.005 free play.

When I took them apart one side had a shim and the other did not (which I found odd). I have checked both and with just the spacer both are too tight. I did check to ensure my races were seated and they are.

Has anyone setup their bearings and not used any shims? I'm using Timken bearings not that it should matter.

????????????????????????????
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Old Jun 18, 2007 | 01:13 PM
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Hold that thought, I had a brain fart doing this. I think my problem is not enough shims installed. Be right back.
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Old Jun 18, 2007 | 01:54 PM
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I worked out the complete brain fart. Both sides are shimed to .001 and ready for assy tomorrow. GM says .005 to .008 but a few on CF say to shim to .001, you guys agree with this?

Thanks
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Old Jun 18, 2007 | 01:58 PM
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The factory tolerance in the Shop Manual is way too generous; shoot for .001"-.002".
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Old Jun 18, 2007 | 02:00 PM
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Yep, mine are shimmed to .0015" and .002". My GM overhaul manual states a minimum of .001" clearance.
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