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Unread 03-19-2012, 01:47 AM   #1
4x4chase
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Cj body/ Tj chassis & LS engine

So I lost my built YJ to my ex a little over a year ago and about the same time I picked up a basket case early 80's CJ. Since then I have been been trying to figure out how to build the jeep I want. I thought about just rebuilding the CJ and selling it to get a TJ, Thought about builiding up the CJ with an LS motor but didn't want the leaf sprung suspention or the weak frame & also thought about just selling all the CJ stuff to work towards buying the jeep I want. I have finally decided to put the CJ tub on a TJ chassis and find a LS motor (5.3 or 6.0) with tranny to get my V8 jeep I want.
I got the TJ rolling chassis last week and I am curently working on a lift system in my garage to lift the CJ tub. Preliminary measurements look like this shouldn't be to hard to do. I will probably need to cut off the 6 body mounts on the side of the frame rails and relocate them where I need them. The two mounts under the rear seat look to be in the correct location and the rear most two mounts will need to be slightly moved.
So I want to ask the TJ owners out there, if their is anything I should do to the frame before I get the tub mounted to it. I have read about drainage issues with the frame, and it looks like the upper rear spring mounts shold be angled different. The frame I got was a 4cyl TJ frame in great condition.
Any other thoughts would be appreciated. This is going to be a slow build as funds are tight (darn ex). I still have not decided on axles but would like another 8.8 like I used in my YJ. I am completely up in the air as to which front axle to use. I did get a dana 300 xfer case, with a new 4:1 kit, with the CJ purchase and plan to run it, meaning I need an adapter and possibly a flip kit depending on the front axle I use.
I am hoping to keep this build to a moderate level so that I can drive it regularly but still hit some fun trails. I will post pics in a littlet while althought all I have is a cell phone camera so lets see how those come out.


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Unread 03-19-2012, 04:32 PM   #2
JLITTY
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Thinking this exact same thing with my stretched Willys body. Crawled
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Unread 03-19-2012, 10:22 PM   #3
4x4chase
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Working on pics
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Unread 03-19-2012, 10:27 PM   #4
4x4chase
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Unread 03-19-2012, 10:29 PM   #5
4x4chase
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Unread 03-25-2012, 11:10 PM   #6
4x4chase
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This is how I rigged the tub to be lifted

YEA I trust the joists

And up we go

Out with the old

In with the new

Moving wheel dollies

This is the forward most mount by the firewall. Probably could just drill a new hole for this to work

2nd mount back. This one will need a new mount.

Next one. Hmm. Some more fab. This one is close to the frame.

Under the rear seat, these lined up just fine. I will use these as a guide.

Under rear seat other side

The rearmost mounts. Im not sure on how to make these work yet. Any Ideas?

The rear of the tub lines up nicely with the rear of the frame!

But of course, the rear axle sets a little far forward for my taste!

AND... off with the old body mounts..

AND... off with the motor mounts.
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Unread 03-25-2012, 11:15 PM   #7
4x4chase
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Still haven't heard from any TJ owners if there is anything they would change to the frame while I have this kind of access to it. I am also looking for axles so any help would be apreciated.
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Unread 09-22-2012, 08:15 PM   #8
letchcore
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Any updates on this? Good looking project
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Unread 11-01-2012, 10:10 AM   #9
Strings72
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Starting the same project but with a ford small block, I'm going to outboard the rear shocks and relocate the upper coil buckets to vertical why'll its apart. I'm also dropping the rear track bar and triangulating a rear 4 link but that's just a preference thing. More pics please!
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I may be dumb, but what does BBC mean? Is it anything like BBW?
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Unread 11-01-2012, 11:05 AM   #10
redjeep1992
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Hey for the back i've heard most people cutting it off and then using that sections as there rear bumper/rear crossmember that way it won't stick out a huge amount. Anyway good luck on the build I would love to put a CJ grill on my TJ one day
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Unread 11-05-2012, 07:36 PM   #11
Ohiojeepguy
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Interesting build, are you using the factory CJ chassis wiring harness?
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Unread 11-05-2012, 07:46 PM   #12
contdevelop
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What kind of woman takes a man's jeep?? thats bull****!!!

Coming from someone who owns a TJ and a CJ....in my opinion i dont consider a TJ frame stronger than a CJ frame, considering the CJ frame is rusted out. You could either keep the cj rolling frame all together and adapt the TJ body to fit, or since you have the crappy TJ axles...you could the CJ axles and leaf springs and mount them on the TJ frame. its basically 6 to 1, or half a dozen the other. ballistic fab and other companies sell the suspension brackets so you can fab your own set up.
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Unread 04-07-2013, 10:22 AM   #13
FOXXX0126
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any updates?
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Unread 04-07-2013, 10:44 AM   #14
NKOrangeTJ
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What kind of woman takes a man's jeep?? thats bull****!!!.
That's what I'm saying... You know **** wasn't meant to be after that.... Anyway good luck with the build man, sub'd.
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Unread 04-07-2013, 02:35 PM   #15
M1TJ838
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This build is going to be bad***. How much lift are you going to put on it?
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