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installing rear axle shims?

 
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Old 14 Feb 2013, 11:38 am
Young Cruiser
 
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Location: Dallas, TX
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Default installing rear axle shims?

Went to have my car aligned today after having some new tires installed. Turns out I need shims on both sides of my axle to allow it to be aligned. I already have the PN for the shims but the guy was saying something about having to trim them to spec. How difficult of an install is this? Never tried something like this before and really would like to avoid a $250 alignment charge
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Old 14 Feb 2013, 11:41 am
Obsessed Cruiser
 
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Default Re: installing rear axle shims?

An older post on the subject.....

Rear wheel shims
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Old 14 Feb 2013, 04:09 pm
Young Cruiser
 
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Default Re: installing rear axle shims?

Not much about difficulty or anything about whether or not trimming of the shims is involved. Has anyone ever done this install themselves?
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Old 14 Feb 2013, 04:39 pm
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Default Re: installing rear axle shims?

You need to first get an alignment readout. From that you can determine which shim thickness you need. There are a few sizes. Once that is done then it is simply removing the 4 bolts that bold the wheel/brake assembly and install them. That is the time consuming part but not difficult. The problem is no matter how precise your initial alignment reading are to determine what shim to use you will not know if it is completely correct until everything is back together and all the fasteners torqued to specifications. You may have to repeat the steps a couple of times.
Most shims come with a generic installation instruction. It normally helps to have good relations with an alignment shop that would be willing to work with you so that the labor cost will be controlled. The best situation is a shop that will let you do your own shim installation in their shop/yard and then check the alignment.
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Old 22 Feb 2013, 02:21 pm
Young Cruiser
 
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Default Re: installing rear axle shims?

This is what I got from the initial alignment readout. Is this enough?

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Old 22 Feb 2013, 02:30 pm
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Default Re: installing rear axle shims?

Interesting they choose zero rear camber? Good for drag racing!

Looks good though!
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Old 22 Feb 2013, 02:49 pm
Young Cruiser
 
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Default Re: installing rear axle shims?

Is that not correct? I may not need these, and that would be so nice lol!
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Old 23 Feb 2013, 11:50 am
Young Cruiser
 
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Default Re: installing rear axle shims?

So is there a place to find the correct alignment specs for the rear? From the sound of your post the ones printed are incorrect
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Old 23 Feb 2013, 01:19 pm
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Default Re: installing rear axle shims?

I am sorry they are not incorrect! Just an observation on my part . In drag racing you want 0 camber so the tires will have as little as possible rolling resistance. On the road track you want a little camber to improve handling. It really is a careful balance and if you are an enthusiast this should be discussed with the alignment technician. The downside is some states and insurance regulation do not allow the shops to deviate beyond anything accept manufacture alignment specifications.
You should check ahead of time to make sure that the shop performing the alignment has enough of the different width rear shims on hand.
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Old 23 Feb 2013, 01:29 pm
Young Cruiser
 
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Default Re: installing rear axle shims?

This car does nothing but commute and get us places. Factory specs are adequate.
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