12 bolt rearend leak - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 10-25-2003, 12:11 PM
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12 bolt rearend leak

my 84 12 bolt rearend is leaking a lot. its coming from the diff cover seal and in the front by the yoke. how do you fix the leak at the yoke. it looks like its coming from the light colores plastic thing coming out and around the yoke. how do i put a new one on? thanks
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post #2 of (permalink) Old 10-26-2003, 01:58 AM
 
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Re: 12 bolt rearend leak

sounds like a pinon seal leak, un bolt you drive shaft, thares a larg nut in the center of your yoke take it off it should be pritey tight you may need some one to hold the brakes whale you bust it loose with a large braker bar or a strong impact then pull the yoke off ay need to pry a litel or tap it off with a hamer then just pop the seal out put the new one in and put it back together, just renember to get the yoke nut tight may need someone on the brakes agen

hope that helps [img]images/graemlins/scs.gif[/img]
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post #3 of (permalink) Old 10-26-2003, 10:11 AM
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Re: 12 bolt rearend leak

so i take off the drive shaft and unbolt the yoke then just pull really hard on it? then i pull the plastic bushing out and put in a new one? isnt the yoke connected to the gear, wont it get massed up if im pulling really hard on it.
thanks
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post #4 of (permalink) Old 10-26-2003, 01:07 PM
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Re: 12 bolt rearend leak

Mark the pinion and nut with a ***** punch. Count threads. Yank the nut, washer, and yoke. Replace seal. Put the yoke, washer, and nut back on. Tighten the nut down until it is just barely past the mark you made with the ***** punch.

Ideally, you want to check the pinion bearing preload but that involves a lot of work.

Don't forget to mark which universal cap went into which part of the yoke. Be careful when removing the old pinion seal, you don't want to damage the sealing surface on the pinion shaft.
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post #5 of (permalink) Old 10-26-2003, 03:37 PM
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Re: 12 bolt rearend leak

ok thanks that info was very helpfull. i just jacked up the front end of my car and noticed the driver side wheel has some vertical slop. im assuming its the wheelbearing. passenger side is fine. how do i go about repairing this? how serious is it? my stering box also has a little play in it. the steering wheel can moove about and inch and a half before the gears in the box get tight on it(not running). its not the steering wheel shaft i can see the rag joint rotating, all the play is inside the box. do i need to get a new one. it really makes going straight a pain. i end up meandering down the lane. its not fun when im tired.
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