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Modified Tech Discussion Forum for Tech related discussion for Modified XJ's and MJ's.

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  #1  
Old June 7th, 2021, 10:11
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techno1154 techno1154 is offline
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JK D44

I am putting together all the pieces to put the Rubicon D44 under the XJ. I think I have identified a source for all the pieces I will need except the drag link.

My XJ is my DD so I do not plan to get outrageous with the build. I do need reliable parts though. Those who have done this before, From were do you source the drag link?
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1996 XJ; 4.0L; AW4; NP231; SYE; D30 and D44; ECTED; 4.10 gears; 30X9.5 -15 BFG/AT/KO; 3" lift; Rusty's LCA; JKS ADJ UCA; Kevins ADJ Track bar; Drawtite Front Receiver; Dual Electric Fans; Dual Battaries.
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  #2  
Old June 7th, 2021, 15:17
Rockwood Rockwood is offline
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Re: JK D44

You're probably going to have to make one since it's a non-standard length. Miiiiight be able to use a stock JK, but don't know if there's enough adjustability to compensate for the likely difference in frame width.
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  #3  
Old June 7th, 2021, 15:56
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puttzer puttzer is offline
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Re: JK D44

Quote:
Originally Posted by techno1154 View Post
I am putting together all the pieces to put the Rubicon D44 under the XJ. I think I have identified a source for all the pieces I will need except the drag link.

My XJ is my DD so I do not plan to get outrageous with the build. I do need reliable parts though. Those who have done this before, From were do you source the drag link?
Ruffstuff sells a kit to make one, I have two XJ's with JK axles and I used there kit to build both.
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  #4  
Old June 7th, 2021, 16:21
SlowXj SlowXj is offline
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JK D44

If you cannot build one you can measure the length and contact shops like cavfab, stinky fab, busted knuckle, etc to have them build and mail you one

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  #5  
Old June 8th, 2021, 17:31
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techno1154 techno1154 is offline
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Re: JK D44

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Originally Posted by puttzer View Post
Ruffstuff sells a kit to make one, I have two XJ's with JK axles and I used there kit to build both.
Do you have a part number or description of the kit?

Quote:
Originally Posted by SlowXj View Post
If you cannot build one you can measure the length and contact shops like cavfab, stinky fab, busted knuckle, etc. to have them build and mail you one

Actually, StinkyFab do not have one. If I know the approximate length I could buy a threaded tube and custom fit it.

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1996 XJ; 4.0L; AW4; NP231; SYE; D30 and D44; ECTED; 4.10 gears; 30X9.5 -15 BFG/AT/KO; 3" lift; Rusty's LCA; JKS ADJ UCA; Kevins ADJ Track bar; Drawtite Front Receiver; Dual Electric Fans; Dual Battaries.
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  #6  
Old June 9th, 2021, 10:48
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Re: JK D44

Adding another question to this tread,...

I decide not to gusset the diff. Would there be benefits from inner sleeves,...with 31 inch tires and only very mild off-road?

The D30 on there now were/are fitted with 31 and sometimes 32 tires for more 200,000 miles with no problem at all. I am leaning towards not doing it, but if some strengthening is necessary, now is the time to do it during the re-gear process.
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#594
1996 XJ; 4.0L; AW4; NP231; SYE; D30 and D44; ECTED; 4.10 gears; 30X9.5 -15 BFG/AT/KO; 3" lift; Rusty's LCA; JKS ADJ UCA; Kevins ADJ Track bar; Drawtite Front Receiver; Dual Electric Fans; Dual Battaries.
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  #7  
Old June 9th, 2021, 12:13
RCP Phx RCP Phx is offline
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Re: JK D44

Depends on how you drive it, but I wouldn't get to concerned at least until I went with 33+ tires.
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  #8  
Old June 9th, 2021, 17:56
SlowXj SlowXj is offline
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JK D44

So the jk housing is more likely to bend than the xj housing.... Bare with me please...

Jk housings are the same material, same od, and same thickness, but they are 5 inches wider. This adds leverage from the spring bucket out to the inner c. Think of how jk springs sit wider on the axle housing compatibly for a visual.

Imo doing this swap without a minimum of inner sleeves is a no go. I would absolutely truss this axle... Protect your investment...

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  #9  
Old June 9th, 2021, 19:34
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TheXJDrew TheXJDrew is offline
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Re: JK D44

I see quite a bit of bent and broken JK44’s in my line of work. Even had one in a while back that broke the tube on the road and had never been wheeled. That being said, it’s best to beef it up as best as you can before you get it in the Jeep. It’ll be worth it in the long run.
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  #10  
Old June 9th, 2021, 22:12
SlowXj SlowXj is offline
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JK D44

^^^^^^^^^^^^^^^^yupp I've seen them in the shop with bends on a stock daily (rare but happen)

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  #11  
Old June 9th, 2021, 23:04
Evan03 Evan03 is offline
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JK D44

I watched a lady texting and driving in a newish jeep bounce of the concrete median barrier st 65mph and keep driving. I was like yup one owner never wheeled but my wife drives it.

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  #12  
Old June 9th, 2021, 23:18
SlowXj SlowXj is offline
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JK D44

Bahahahaha yes!
My mother in law advertises her old cars as(women owned) she changes her oil about every 3 years 🤣

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  #13  
Old June 10th, 2021, 17:30
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techno1154 techno1154 is offline
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Re: JK D44

OK. I will get a set of inner sleeves. The external gussets I have seen on line all require welding to the center section. That is a much more involved process that I am unable to do myself,... lack of experience and proper welding equipment.
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#594
1996 XJ; 4.0L; AW4; NP231; SYE; D30 and D44; ECTED; 4.10 gears; 30X9.5 -15 BFG/AT/KO; 3" lift; Rusty's LCA; JKS ADJ UCA; Kevins ADJ Track bar; Drawtite Front Receiver; Dual Electric Fans; Dual Battaries.
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  #14  
Old June 10th, 2021, 18:58
SlowXj SlowXj is offline
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JK D44

Welding to the center isn't something that takes much skill... I've welded 3 with nothing more than flux core wire and preheating to 400 degrees....

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  #15  
Old June 10th, 2021, 20:16
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Re: JK D44

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Originally Posted by SlowXj View Post
Welding to the center isn't something that takes much skill... I've welded 3 with nothing more than flux core wire and preheating to 400 degrees....

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I appreciate the confidence you have in me.

I am reluctant to invest in a torch, blanket and higher amperage welding plant for a single use. And besides, I have no experience welding to cast metal. Bad things could happen to poor welding.

Does anyone have/know the length of the drag link used on the JK front diff installed in an XJ?
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Patrick

#594
1996 XJ; 4.0L; AW4; NP231; SYE; D30 and D44; ECTED; 4.10 gears; 30X9.5 -15 BFG/AT/KO; 3" lift; Rusty's LCA; JKS ADJ UCA; Kevins ADJ Track bar; Drawtite Front Receiver; Dual Electric Fans; Dual Battaries.

Last edited by techno1154; June 10th, 2021 at 20:20.
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