Transfer Case swap, To split the case it in the jeep or just replace it whole? -
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post #1 of 3 Old 10-09-2013, 01:31 PM Thread Starter
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1979 CJ7 
Join Date: May 2008
Location: Eureka, MO
Posts: 65
Transfer Case swap, To split the case it in the jeep or just replace it whole?

I need to swap out the Quadratrac in my 79 CJ7 and my question is Should I leave it in the jeep and split the case and rebuild/replace the differential and chain or drop the entire thing out and replace the entire thing with my spare that I will rebuild on the bench?

The reason I even ask this is I am doing this by myself and I am not sure how easy its going to be to muscle it in and out under the jeep by myself so I was thinking it might be easier for me to split it and replace the parts with my spare parts.

Thinking about buying a scissor style Trans jack and they say they raise 24" so that may work.

I purchased a new gasket set, vacuum diaphragm, chain and 3 quarts of TCL-1 fluid. Is there anything else I may need?

Any other tips or clues to follow? I am following the guides I have found online

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post #2 of 3 Old 10-09-2013, 03:11 PM
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1978 CJ7 
Join Date: Jun 2011
Location: Scottdale
Posts: 4,939
Just split the case if you are replacing the chain and other parts. Put a jack under the transmission to take the weight. Remove the belly pan, lower the quadra-trac a little to make access easier, and split the case.
The only reason to drop the entire case is for a full rebuild with bearings.

The scissor transmission lift will be a great help in removing/replacing the gears and chain. They are HEAVY. Especially bench pressing them up into place while keeping the chain where it needs to be.

I just swapped out my quadra-trac. Here's a link to the thread.

78 CJ7.. 258.. TH400/Dana18.. SOA/stock YJ springs.. 35" General Grabbers.. Waggy 44s.. 4.88 gears...Spartan/Lockright...Fiberglass front to rear
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post #3 of 3 Old 10-11-2013, 10:46 PM Thread Starter
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1979 CJ7 
Join Date: May 2008
Location: Eureka, MO
Posts: 65
Wasn't so bad, Dropped the case and cracked it open, Was actually pretty easy to change the belt, clean it up and put it back in.

Its so nice to be able to drive it again. Its been 5 years since I have had this thing on the road again and wow is it fun.

Tomorrow I head to the inspection station and pray it passes. The horn relay only works about 50% of the time so I may swing by the parts store first for a new relay.
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