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GM 12-Bolt in a TJ, I NEED HELP!


 
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dalefan4lyf
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Joined: 16 Apr 2006
Location: Mooresville, Indiana

PostPosted: Sun Apr 16, 2006 2:57 pm    Post subject: GM 12-Bolt in a TJ, I NEED HELP! Reply with quote

Mr. Green Ok, I need some advice. I am looking a tputting a GM 12 bolt rear end in my 2002 TJ. It has 30 spline axles and 3" tubes on the housing. I was looking at buying an old Dana 44 and getting the TJ bracket kit from Rubicon Express to weld on. I have the 12 bolt in the garage and thought what the hell. Any advice would be much appreciated!
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Code3TJ
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PostPosted: Tue Apr 18, 2006 2:02 am    Post subject: Reply with quote

Well, I'm not overly familiar with that particular axle, but is it out of a half ton truck? Does it have disc brakes? A truss? What's the width and bolt pattern? For the amount of work you're going to do, I'm thinking there are better options out there. Wink
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ehirner
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Joined: 01 Jan 2004
Location: Eastern PA

PostPosted: Tue Apr 18, 2006 5:32 pm    Post subject: Reply with quote

Code3TJ wrote:
Well, I'm not overly familiar with that particular axle, but is it out of a half ton truck? Does it have disc brakes? A truss? What's the width and bolt pattern? For the amount of work you're going to do, I'm thinking there are better options out there. Wink

X2.

The width and bolt pattern will be the biggest obstacles to overcome. There is a reason the D44 and 8.8 swaps are popular. Same or similar width with the same bolt pattern. It makes for an easy swap if you don't want to run two bolt patterns or have your tires stick way out with a fullsize axle.
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dalefan4lyf
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Joined: 16 Apr 2006
Location: Mooresville, Indiana

PostPosted: Wed Apr 19, 2006 5:27 pm    Post subject: Reply with quote

Confused No truss, but, I could weld one in. It is 58 1/2" axle housing flange to flange. It has 5 on 5 bolt pattern. I think I can have the axle flanges redrilled for a 5 on 4.5 though. It is out of a 73' half ton Chevy 2 wheel drive.
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Code3TJ
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PostPosted: Thu Apr 20, 2006 10:48 am    Post subject: Reply with quote

Yes, you can have them redrilled, but what I was trying to say is that for the time/expense/effort you're going to put into it, it'll likely be easier and cheaper to install an 8.8.
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dalefan4lyf
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Joined: 16 Apr 2006
Location: Mooresville, Indiana

PostPosted: Fri Apr 21, 2006 12:23 pm    Post subject: Reply with quote

I see what you mean. Thanks for the help!!
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