need rearend knowledge
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New User
Joined: Oct 2003
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need rearend knowledge
i recently tuned up my 351w, when done i took it out for a test everything was excellent , next day i noticed a puddle of diff fluid i check and it was diff
now i noticed the the diff yoke has came a head about an 1 1/2, what is the best way to fix this.
the diff still functions properly
a little too much weight on the gas peddle i guess
now i noticed the the diff yoke has came a head about an 1 1/2, what is the best way to fix this.
the diff still functions properly
a little too much weight on the gas peddle i guess
Super Moderator
Joined: Oct 2002
Posts: 8,547
Likes: 6
From: MA
You might want to ask the guys over in the Transmission, Differential, Axle and Transfer Case forum. Sorry I cant be of more help.
Rich
Rich
New User
Joined: Oct 2003
Posts: 9
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From: South Dakota
sounds like the nut that holds the yoke to the pinion has come loose. the problem is how much damage has occured to the pinion bearings and other interal parts. the very least you would have to do is replace the pinion seal and reset the bearing preload and hope that the nut stays put. You have to be careful not to overtighten the nut that holds the yoke. That is the tricky part if you want the differential to last it has to be just right.
Junior User
Joined: Jan 2004
Posts: 56
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From: Southern Arizona
I agree with the previous poster that you may have damage to the ring and pinion from running with major misalignment. This problem mostly results from a previous "mechanic" not using a new yoke nut when servicing the rear axle. If the ring and pinion are still good, replace both the seal AND the nut. The service manual for the 8.8" rear axle states (I'm sure that's what you have) that the nut should be replaced, not reused. It come with a locking sealer on the threads. If you can't afford a new nut, at least use Loctite locking sealer on cleaned threads and check it a lot.
Senior User
Joined: Jul 2003
Posts: 114
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From: Tyrone GA
You need to replace the lock nut that holds on the yoke. It has some lock tite on it so you really shouldn't re-use the only one unless you put some more lock tite on it. I would also replace the crush sleeve while you're at it, and then just tighten that nut down REAL good. Use a cheater pipe. Not sure on how much to tighten exactly, i would do a search on that . Good luck.
Logistics Pro
Joined: Jan 2001
Posts: 3,740
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From: Central NYS
Originally Posted by alcan60283
I would also replace the crush sleeve while you're at it, and then just tighten that nut down REAL good. Use a cheater pipe. Not sure on how much to tighten exactly, i would do a search on that . Good luck.
Used pinion bearings in a 9" calls for the nut to be tightened until it takes 8-14 INCH/lbs to continually rotate the pinion with the axles REMOVED.
