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Old 01-16-2010, 12:44 PM
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Anyone Shorted A Rear Housing

I mean anyone done this work themselves? Not by a company.

They make it look realtively easy on PowerblockTV. (Extreme4X4)

I have a 12 bolt out of a '71 Impala which is way TOO long to fit under a '57 Chevy.

I bought the rear complete in 1982 from a guy I worked with. He wanted the engine/trans for a '66 Chevelle he owned. I asked about the rear, he offered to pull it and bring to work with him for $25. How could I refuse a deal like that?

It's been laying in my barn since '85 when the barn was built. I'd like to use it but the only way possible is to shorted in to fit. If I'm going to all the trouble I thought about making it 2" shorter then the stock '57 housing. So more wheel/tire combinations could be used if I wanted. The extra 1" off each side shouldn't pose any interference problems from the '57 leaf springs.

Any advice on shortening a housing?

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Old 01-16-2010, 01:11 PM
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have you looked in the Crankshaft Wiki?

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Old 01-16-2010, 01:27 PM
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Old 01-16-2010, 10:02 PM
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Thanks for the replies.

I think I'll give it a try.
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Old 01-17-2010, 11:17 AM
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I do them often. I have the complete Mittler tool. Not cheap but it works nice.
You can buy just the parts needed from them. Scroll down about 1/2 the page. It's over $400.

http://www.mittlerbros.com/rear_end_...ccessories.htm
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Old 01-17-2010, 03:35 PM
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I've probably narrowed 100 housings or more. You need the housng fixture to get the ends on in like with the main bearing bore. This is very important. You also need to be a good welder.

This is the old housing fixture that I used for years. I now have a new Mittler fixture.
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Old 01-19-2010, 11:17 AM
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With my experience doing this type of thing at a minimum, I'm wondering if a friend could do the work for me? He's been a custom car builder for many years and I wonder if he could help me narrow this rear housing?
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Old 01-19-2010, 11:24 AM
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Old 01-19-2010, 12:31 PM
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As long as he has the housing fixture then he can probably do it. If he doesn't have the fixture then you still aren't going to get it right.
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Old 01-19-2010, 12:42 PM
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Powerrodsmike (have not seen or heard from him in a while---where is he )
had a thread going on this quite some time ago.

Might look into some of his posts for the last couple of years and see what to come up with.

(Rob Keller has vanished as well )
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Old 01-31-2010, 03:40 PM
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I never located any threads on shortening a rear housing.

Thanks for all the help.
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