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Unread 05-03-2014, 09:10 PM   #1
jeep1000
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TJ Axles on a CJ7

I have been thinking about putting TJ axles on my CJ7. I want to do so for the added width, coils, and I also get a rear 44 if I get a Saharas, Rubicons, or one with a Towing Package axles. My question isnt how much itd take or what not, but, has anyone done this? What will it look like? TJs are a good few inches wider than CJs. I dont want it to look too weird either.

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Unread 05-03-2014, 09:35 PM   #2
jp360cj
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The TJ axles are wider but the TJ body is right about the same width as a CJ. IMO, the TJ axles are the perfect width (around 58" - 60") for a dual purpose rig.

That said, I wouldn't want to put TJ axles under a CJ. They aren't that strong for that much work/expense. You didn't say what tire size you want to run, but if I were going coils on a CJ it would be for minimum 35" rubber and that's really pushing the TJ axles.
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Unread 05-03-2014, 10:03 PM   #3
jeepwhore
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X2. Not worth the hassle for a D30 with auto hubs, vacuum disconnect and let's not forget the obvious........the front diff being on the wrong side.

If the rear isn't going to be a 44 then it's absolutely a waste of time and resources even if you do manage to make the front work
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Unread 05-03-2014, 10:09 PM   #4
JeepinJeremy
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Don"t waste your time with TJ axles. Find a set of Waggy 44'S front and rear and be done with it, if you want the extra width. Other wise international scout Dana 44's are a near bolt in application and are just slightly wide than your wide track CJ. If coils are what your after, your frame is to narrow unless you swap to at least a YJ frame.
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Unread 05-04-2014, 04:17 AM   #5
jp360cj
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Why is the frame too narrow? TDK makes a hybrid frame that the CJ body bolts to but has brackets for TJ suspension. I would think the width would be the same?
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Unread 05-04-2014, 12:33 PM   #6
JeepinJeremy
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Quote:
Originally Posted by jp360cj View Post
Why is the frame too narrow? TDK makes a hybrid frame that the CJ body bolts to but has brackets for TJ suspension. I would think the width would be the same?
It's narrow because that was how it was made by AMC. A YJ frame is a boxed frame and about 5" wider. I didn't say it would not work, I just said it was to narrow. Can it be used? Yes. But you would really have to outboard the brackets for it to work correctly. Not to mention the factory CJ frames are weak thin walled garbage that tend to bend and warp under stock suspension movement and would required a ton of work just to reinforce them enough to run a TJ coil spring set up. It would be easier and cheaper to run coil overs with a 3 or 4 link set up and just reinforce the rails.
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Unread 05-05-2014, 08:40 AM   #7
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The spring perches on a front Waggie 44 are 31.5" apart and the CJ frame is 27.5" wide, on center. You can't move the spring perches closer together on the axle because the passenger side is cast into the edge of the differential housing.

Soooo much info is on this site and the rest of the web on axle swaps and what works, what doesn't.
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Unread 05-08-2014, 01:28 PM   #8
jeep1000
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So since its not worth it, I was planning on a 44/30 combo from a TJ, what axles would I consider? XJ? Stronger, wider and I get coils up front.
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Unread 05-08-2014, 01:34 PM   #9
EugeneTheTJ
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Quote:
Originally Posted by jeep1000 View Post
So since its not worth it, I was planning on a 44/30 combo from a TJ, what axles would I consider? XJ? Stronger, wider and I get coils up front.
XJ 44 (very rare) is stronger than a TJ 44. The 8.25 is weaker. The turdy 5 is, well, a turd.

Front axle CAN be stronger (based on what XJ you find as the source) but its the ring gear, not the axle shaft.

However, the axles are the same width (not wider) and you still are posed with all of the same problems as if you were to swap in TJ axles.
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Unread 05-08-2014, 05:40 PM   #10
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TJ, XJ, YJ, ZJ etc all have the front diff on the wrong side for a CJ.


Do a Google search on "CJ axle swap". That will give you an idea what works and why they work. You're not really coming up with ideas that haven't been considered before, so a backwards way of thinking with a lack of documentation of such swaps is an indicator that they aren't good or viable candidates.
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Unread 05-08-2014, 08:57 PM   #11
jeep1000
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My goals are springs (front and rear or just front), and width. Leafs are nice and stock, but damn they are stiff on the rocks.
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Unread 05-09-2014, 08:16 AM   #12
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Not if you use the right leafs and set them up correctly.
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Unread 05-09-2014, 08:35 AM   #13
BlueRubiconrich
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front axle: the right year Waggy 44 or Scout Dana 44
rear axle. Scout Dana 44,Ford 8.8, Ford 9"Honda passport Dana 44.,Waggy 44
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Unread 05-09-2014, 09:29 AM   #14
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I think if your really that concerned about the suspension just do a 4 or 3 link. I don't think just swapping over to coils would be worth it. It can be better but I don't think it's that much better to justify what it's gonna cost to do it. You'll get softer suspension with a 3 or 4 link and much much more flex
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Unread 05-09-2014, 10:18 AM   #15
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Coils require links too.

Pretty sure you're referring to using coil overs vs. coils.
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