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Old January 3rd, 2011, 03:20 PM   #1
belinger758
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Some one please help me axle troubles!!!!

i have a 93 jeep ZJ Grand Cherokee.. Dana 30 front with 3.55 gears... i have replaced all seals and bearings (axle seales/bearing, pinion seal/bearings) new CV shafts wheel bearings and for some reason something in my diff is getting so hot that it is burnin the diff fluid and smokes horribly... i have replace everything and had a certified mechanic doit it all...this is the second time it has happened and i cant figure it out..please help me!!!!
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Old January 3rd, 2011, 03:22 PM   #2
bigbchevy
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bad bearing? gears set up to tight? have you tryed to spin the axle by hand with the tires and drive shaft off?
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(mr.green)So you are calling CC a liar?? Not a nice way to treat your bitch.
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Old January 3rd, 2011, 03:23 PM   #3
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sounds like to me that the gears are set up wrong!
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(mr.green)So you are calling CC a liar?? Not a nice way to treat your bitch.
tube bending and gear installs pm me for info! gears installed for $150 and up per axle.
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Old January 3rd, 2011, 03:26 PM   #4
belinger758
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thought that was the deal but all the gears are not tightened to tight and there was no shims. and with the tire off and drive shaft off spins smoothly no binding at all. second time it has happened
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Old January 3rd, 2011, 03:26 PM   #5
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i would agree with bigbchevy, being certified just means they passed a test
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Old January 3rd, 2011, 03:29 PM   #6
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i said that because the guy knows what hes doing
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Old January 3rd, 2011, 03:31 PM   #7
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Quote:
Originally Posted by bigbchevy View Post
sounds like to me that the gears are set up wrong!
X2, and or improper carrier bearing cap torque. Continued use will result in failure. If something is making that much heat you should be able to diagnose it with a simple visual inspection upon tear down.

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Old January 3rd, 2011, 03:38 PM   #8
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had everything out and there was no signs on anything rubbing together or getting hot...thats y im so confused...everything looks good once u get the burnt diff fluid off from it
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Old January 3rd, 2011, 05:30 PM   #9
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There is only two things it could be, gears getting hot or bearings getting hot. What is the pre-load like on the pinion bearing? You said there is not any shims? If that thing is set up right there will be shims under the bearings on the carrier, and under the inner bearing for the pinion depth.
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Old January 3rd, 2011, 05:36 PM   #10
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there is only two things it could be, gears getting hot or bearings getting hot. What is the pre-load like on the pinion bearing? You said there is not any shims? If that thing is set up right there will be shims under the bearings on the carrier, and under the inner bearing for the pinion depth.
x2
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Old January 4th, 2011, 08:56 AM   #11
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Quote:
Originally Posted by shawn View Post
There is only two things it could be, gears getting hot or bearings getting hot. What is the pre-load like on the pinion bearing? You said there is not any shims? If that thing is set up right there will be shims under the bearings on the carrier, and under the inner bearing for the pinion depth.
Quote:
Originally Posted by belinger758 View Post
i have a 93 jeep ZJ Grand Cherokee.. Dana 30 front with 3.55 gears... i have replaced all seals and bearings (axle seales/bearing, pinion seal/bearings) new CV shafts wheel bearings and for some reason something in my diff is getting so hot that it is burnin the diff fluid and smokes horribly... i have replace everything and had a certified mechanic doit it all...this is the second time it has happened and i cant figure it out..please help me!!!!
2nd time?

What was wrong with it the first time?

Did the same guy do the work both times?
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