Blew Rear Diff - Rebuild D35 or Swap to D44a? - JeepForum.com
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post #1 of 13 Old 09-21-2017, 05:40 PM Thread Starter
YeepinBlue
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Blew Rear Diff - Rebuild D35 or Swap to D44a?

Went out trail riding and blew out my rear D35, as well as one of my front shafts. Carrier is stripped and lots of bits of metal in the rear. Now I am trying to decide if I should rebuild my D35 or go pull a D44 off a V8 in a salvage yard and rebuild that. I'm really wanting a bolt on option, instead of modifying other axles for brackets.

Any advice is appreciated!


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post #2 of 13 Old 09-21-2017, 06:05 PM
JMZ101586
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You pretty much know the answer

You can even one up it by getting a pair of variloc axles so you have posi front and rear.

Stable:
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post #3 of 13 Old 09-21-2017, 06:23 PM
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Cheap and quick? Grab a pair of axles from a WJ with Quadradrive, as JMZ mentioned. Gets you a beefier rear and those variloc limited slip diffs in each one.

However, if you plan to go with lockers in the future, then it's easier to get them for non-variloc-equipped axles.
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post #4 of 13 Old 09-21-2017, 07:10 PM Thread Starter
YeepinBlue
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We'll have to see if I am even lucky enough to just find one of them

The salvage yard near me shows they have 10 WJs, so maybe I can get ahold of both.

If I find a d44 with lower miles, then I will just do a swap; but if they have higher miles, then I would just take it to get rebuilt so that I don't have to deal with bearings and seals causing headaches later on.

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post #5 of 13 Old 09-21-2017, 09:06 PM
rm2001wj
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Whether Vari-Lok or not, the d44a will have a 3.73 ratio while your original d35 rear and d30 front most likely will have a ratio of 3.55. Front and rear ratios should be the same so you will need to consider replacing both of your original differentials.
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post #6 of 13 Old 09-22-2017, 05:34 AM
capsul
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Same thing happened to me. Went with the d44a open and put in 4.56 gears ft and rr to keep both axels the same. If you change to the d44a then you will need to find the 3.73 gears for the front.
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post #7 of 13 Old 09-22-2017, 07:16 PM Thread Starter
YeepinBlue
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Good to know, didn't realize the D44a had a different gear ratio. Do you all think that I could run it 2wd for a bit until I can get the front regeared if I can't find a matching front d30? I have the selec-trac (242) t-case so I could put it in 2wd and just not change it. Also I believe that I would need to have a rear driveshaft made, in order to accommodate the new rear D44a

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post #8 of 13 Old 09-23-2017, 10:01 AM
capsul
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Not sure about running it in 2 wd, the front shaft still turns in 2wd so I think it might be a problem. When I swapped to the d44a my original rear shaft worked fine.
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post #9 of 13 Old 09-23-2017, 11:32 AM
BEEFstew1990
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If your willing to travel some I have a front dana 35 axle and a rear dana 44A from a jeep wj for sale. Complete setup with 3.73 gears with vari-loks for $350. Out of a 2001 wj v8 quadra drive text 270206825
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post #10 of 13 Old 09-28-2017, 08:58 AM
PhantomWJ
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Quote:
Originally Posted by YeepinBlue View Post
Went out trail riding and blew out my rear D35, as well as one of my front shafts. Carrier is stripped and lots of bits of metal in the rear. Now I am trying to decide if I should rebuild my D35 or go pull a D44 off a V8 in a salvage yard and rebuild that. I'm really wanting a bolt on option, instead of modifying other axles for brackets.

Any advice is appreciated!
Pull a d44A with 3.73 gears....makes sure your front has 3.73 gears also...if not, pull the front one too
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post #11 of 13 Old 10-06-2017, 12:05 PM Thread Starter
YeepinBlue
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Managed to find a D44a off of a 2wd and it just so happens to have limited slip added as an option. I took the cover off and everything in there looks brand new (probably rebuilt less than a couple thousand miles ago). The Jeep had 'Blown Motor' written on the side of it. Didn't have the energy to find a matching front in the 95 degree Texas sun. Once I swap the rear, I'm going to have the front regeared and overhauled, got a quote for $940 from 4WheelParts for the front and the D44a only costed $160!

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post #12 of 13 Old 10-06-2017, 01:53 PM
PhantomWJ
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Quote:
Originally Posted by YeepinBlue View Post
Managed to find a D44a off of a 2wd and it just so happens to have limited slip added as an option. I took the cover off and everything in there looks brand new (probably rebuilt less than a couple thousand miles ago). The Jeep had 'Blown Motor' written on the side of it. Didn't have the energy to find a matching front in the 95 degree Texas sun. Once I swap the rear, I'm going to have the front regeared and overhauled, got a quote for $940 from 4WheelParts for the front and the D44a only costed $160!
Junk yard...d44a...3.73 gears..should be no more than $300


Get a front too...
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post #13 of 13 Old 10-08-2017, 06:58 AM
HarryH3
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Much cheaper to just swap the entire front axle for a junkyard one that has the correct gear ratio. No need to spend that kind of cash for a gear install unless you're going with a non-factory gear ratio. Perhaps spend some of the extra cash you save on some new ball joints before you swap in the axle.
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