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Tow Rigs and Trailers Hey, not all of our Jeeps are great on the highway. Post here for tech related to getting your XJ to the trailhead.

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  #16  
Old March 10th, 2014, 19:29
XJLI XJLI is offline
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Vari-Lok Progressive Differentals????

Rear is 100% a 44a. Can confirm, my uncle has one.
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  #17  
Old March 10th, 2014, 20:11
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87manche 87manche is offline
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Re: Vari-Lok Progressive Differentals????

yeah, all the grands got the aluminum 44 to my knowledge.

not sure I'd rock a spacer, for the different in gearing I'd just do 3.73.

I had them in my MJ.
3.73's and 31's with a 5 speed is just about perfect. Just a tad better than factory. 4.10s and 31's in an auto would probably be just about right too.

If they fit one could score a pretty fancy auto locking/LS diff for junkyard parts money that was super street friendly for the front axle.
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  #18  
Old March 10th, 2014, 20:29
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kastein kastein is offline
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Re: Vari-Lok Progressive Differentals????

I know for a fact some WJs got a d35... a really weird one, semifloat non c clip with a very strange brake backing plate and bearing retention plate bolt pattern. Learned that the wrong way while trying to pull donor parts for a rear disc swap before I knew the difference between a ZJ and a WJ

I'm going to be running 235s and 3.55s with an AX15. First gear is already going to be damn near useless on the road, if I wanted to spend money on it I might put 3.73s in it but I'm already wasting way too much on this turd as it is.
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  #19  
Old March 10th, 2014, 20:32
Talyn Talyn is offline
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Re: Vari-Lok Progressive Differentals????

Typically the 4.0Ls got the D35.
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  #20  
Old March 11th, 2014, 08:27
srmitchell srmitchell is offline
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Re: Vari-Lok Progressive Differentals????

I have an 04 Overland WJ with quadradrive. Works amazing offroad, just a little slip then boom, you are moving.

I wouldn't recommend it for a swap though. If you have a wj without it, a whole axle swap with vari-lock would be cool, but the differential carrier assemblies with clutch packs are not serviceable, and the dealership cost is over 700 dollars.

Not sure if you guys were specifically thinking of that carrier for a xj swap, but I'd rather have a full locker.
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  #21  
Old March 11th, 2014, 08:32
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kastein kastein is offline
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Re: Vari-Lok Progressive Differentals????

If I can get one for $50 at the local pull-a-part, then install it with $50 worth of ring gear bolts and bearings/shims, it's definitely worth it. At that point, if the clutches wear out, go get another one...

Certainly not worth it at full price.
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Please do not PM me about the AW4 info thread unless you have a truly unique question that is not covered by it or info to add. I do not respond to questions answered by the thread.
Definitely do not hunt down my phone number at 3AM, text me about it, and then threaten violence when I am not helpful. It will not get you what you want.
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  #22  
Old March 11th, 2014, 08:33
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87manche 87manche is offline
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Re: Vari-Lok Progressive Differentals????

Quote:
Originally Posted by kastein View Post
I know for a fact some WJs got a d35... a really weird one, semifloat non c clip with a very strange brake backing plate and bearing retention plate bolt pattern. Learned that the wrong way while trying to pull donor parts for a rear disc swap before I knew the difference between a ZJ and a WJ

I'm going to be running 235s and 3.55s with an AX15. First gear is already going to be damn near useless on the road, if I wanted to spend money on it I might put 3.73s in it but I'm already wasting way too much on this turd as it is.
I was speaking that if it had a D44, it's probably an aluminum one.

I too am planning on 3.55s and 235s with an AX15. I think you will be pleasantly surprised at the gearing.
I ran similar on the road as DD in the 87 and felt it was perfect. The 3.07s were a stupid idea.

as far as rebuilding it, it's just a clutch pack. Someone assembled it in a factory. If you can find the OEM for the clutch discs I don't see why it couldn't be rebuilt.

the spicer manual says "not field servicable"
so that sounds to me like it requires a special tool to be made.
http://www2.dana.com/pdf/X5001-CVSP.pdf

Last edited by 87manche; March 11th, 2014 at 08:43.
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  #23  
Old March 11th, 2014, 08:44
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kastein kastein is offline
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Re: Vari-Lok Progressive Differentals????

Right now it's on 205/70R15s (25") so until I get the 235s, it's gonna be comically deep geared with the manual and 3.55s.

Oh yeah... the oil plenum is needed on the front, too. Part number 05012725AA.

I believe srmitchell was saying the problem is no one makes the clutch packs aside from the factory, and they only sell them as a preassembled carrier - I sure can't find a factory clutch pack part number anywhere, anyways.
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Definitely do not hunt down my phone number at 3AM, text me about it, and then threaten violence when I am not helpful. It will not get you what you want.
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  #24  
Old March 11th, 2014, 08:47
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87manche 87manche is offline
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Re: Vari-Lok Progressive Differentals????

http://www.rallyanarchy.com/phorum/read.php?5,12323

the guts and tuning one at a volvo rally site.

love the cheap assed volvo guys with rear D30's!

I see no reason that the clutches could not be easily replaced. It looks like it comes apart easily. As long as the gear oil pump isn't damaged/within tolerance you could ust slap new bits in the clutch and do it easy.
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  #25  
Old March 11th, 2014, 08:49
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Re: Vari-Lok Progressive Differentals????

Quote:
Originally Posted by kastein View Post
Right now it's on 205/70R15s (25") so until I get the 235s, it's gonna be comically deep geared with the manual and 3.55s.

Oh yeah... the oil plenum is needed on the front, too. Part number 05012725AA.

I believe srmitchell was saying the problem is no one makes the clutch packs aside from the factory, and they only sell them as a preassembled carrier - I sure can't find a factory clutch pack part number anywhere, anyways.
picture of factory disc with a part number

http://www.rubicon-trail.com/gerodisc/

I can't believe that dana would have made a specific clutch just for these units. I'd be willing to bet it's a stock clutch part used elsewhere in the dana ecosystem.
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  #26  
Old March 11th, 2014, 08:56
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kastein kastein is offline
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Re: Vari-Lok Progressive Differentals????

If they last that long it may be a moot point. I can't find anything with that part number (AC166301?) but they might be out there.
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My yard looks like Sanford & Sons.
Please do not PM me about the AW4 info thread unless you have a truly unique question that is not covered by it or info to add. I do not respond to questions answered by the thread.
Definitely do not hunt down my phone number at 3AM, text me about it, and then threaten violence when I am not helpful. It will not get you what you want.
CTeunuch: Sometimes I really wonder if this sport makes you insane, or it just attracts the mentally unstable.
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  #27  
Old March 14th, 2014, 09:52
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Hillbilly XJ Hillbilly XJ is offline
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Re: Vari-Lok Progressive Differentals????

Here as in a lot of places this winter we had a lot of snow and I to must admit my 04 Overland was amazing in it. I live in the country on a farm and many times it takes some time for the road district to get to our road. I broke through several 2 1/2-3' drifts after a 13" snow we received the next morning first one on it for about 3/4 of a mile to main road.

For a non lifted stock 4x4 SUV few could match it IMHO. It just works maybe not like the Detroit Lockers in the XJ but for a DD very sweet. As far as the 3.73's ideal for me along with the 4.7HO motor makes it ideal for towing my car hauler with the XJ on it.
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  #28  
Old March 16th, 2014, 20:50
zachandandy zachandandy is offline
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Re: Vari-Lok Progressive Differentals????

On the road they are fairly affective, off road not so much. Countless times the wife's wj was left with 1 front and 1 rear spinning in the air in the rocks. Like every other limited slip, great in the snow(I even passed a snow plow crossing Nevada one night cause there's no way I'm crossing the entire state at 30mph), but inadequate under heavy off road use. The pump does put the spiders heavily offset and thus the different length shafts. Already swapped in an Aussie in the rear 44a, now swapping that out to a 14b, but she's on 35's and we wheel trails like the rubicon, fordyce, and the dusy.
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