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Old 01-06-2013, 12:21 PM
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Join Date: Sep 2011
Location: Tallahassee
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Dana 30 split axle

Background: Bought my '93 4.0L Jeep a year and a half ago for 1600, so as you can imagine it had a lot of issues. The rear axle had been on the way out and finally went (totally destoyed carrier). So, i am saving cash to swap in a Ford 8.8. In the meantime i decided to rig up the broken vacuum pump in the split axle so i can have a front wheel drive Jeep (anyone know of a reason why this would not work?)

Problem: After pulling the vacuum pump, i noticed that the axle had a bunch of play in it, investigating i found bits of rubber and metal inside the pump housing and axle housing (where the pump goes in). Also, a piece of metal that i am assuming was the seal for the part of the axle that goes to the wheel moves freely on the axle inside the housing.

1. Will the collar that slides over the exterior axle be strong enough to hold the axle without braking for around 500 miles if i dont replace the seal or at least will it hold long enough without doing damage to drive it the 10 miles to my house.

2. Is this a common failure point or is this a sign that there is likely further damage to the axle? (when i bought it the ball Joints and hubs were completely shot and the front tires were at a large angle in at the top this seems like it could have destroyed the seal)

3. How involved is changing the seal, do i have to pull the outer axle, or do they sell a split seal that does not require pulling the axle?

4. Is there supposed to be a seal on the interior half axle in this housing as well?

I know that Jeeps are money pits, but i have been holding this together on a shoestring budget this long as i am a student with a wife and newborn. Being in NW Florida, 2 wheel drive and a come along is all i need to do just about any of the off roading around here. Any suggestions that involve more work than money would be greatly appreciated.
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Old 01-06-2013, 04:51 PM   #2
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You can take the front drive shaft off completely and run in 2wd as long as none of the pieces loose in there catch on anything. I would suggest just locking the fork over but with the apparent abuse your YJ has taken there may be other issues. Locking the collar over permanently is something that is done all the time. At least you will be mobile until you can afford to work on it more. Get the front end safe and then worry about getting the 4X4 working. If it leaks badly you may have to replace the seals too.

Good luck with it.

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Old 01-06-2013, 05:05 PM
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Seems like there are supposed to be bearings on both axles at the pump housing (according to a diagram i saw). Looks like i will be pulling that jeep down I10 behind a pickup sometime this week.
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Old 01-06-2013, 11:30 PM   #4
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Well, if the carrier in the D35 is destroyed, there is really nothing left to hold the c-clips in the rear axle.... I wouldnt be driving it in that condition. you are likely to lose your axle shafts, tires and when those come off, you run the very real chance of losing your braking ability.
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dana 30 , split axle , vacuum actuator , yj front axle

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