What lube for axle bearings and seals, and axle splines? - Chevelle Tech
Transmission & Driveline Transmissions and Differentials

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post #1 of 10 (permalink) Old Jun 29th, 20, 4:02 PM Thread Starter
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Tony
 
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What lube for axle bearings and seals, and axle splines?

Just put new bearing and seals in my rearend, and I a ready to slide the new Moser axles.

What should I use on the seals? Should I pack anything in the bearings?

Should I put some on the axle splines?

I have this stuff, but I am thinking it’s the wrong stuff

Thanks
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post #2 of 10 (permalink) Old Jun 29th, 20, 4:22 PM
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Re: What lube for axle bearings and seals, and axle splines?

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Originally Posted by 1966_L78 View Post
Just put new bearing and seals in my rearend, and I a ready to slide the new Moser axles.

What should I use on the seals? Should I pack anything in the bearings?

Should I put some on the axle splines?

I have this stuff, but I am thinking it’s the wrong stuff

Thanks
DO NOT USE THE ROUND-UP!! Just kidding,I normally just use the axle lube to coat everything in the assembly.I feel that when you run in the rear end on the jack stands all moving parts will be lubed as required,with the axle lube.The seals will have the lube on them for start up also.Never had a problem.Good luck,Tom.. P.S. like your choice of chevelle,1966.
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post #3 of 10 (permalink) Old Jun 29th, 20, 4:37 PM
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Re: What lube for axle bearings and seals, and axle splines?

If its a GM Positraction you will need the GM additive also.


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post #4 of 10 (permalink) Old Jun 29th, 20, 5:04 PM
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Re: What lube for axle bearings and seals, and axle splines?

Just put gear oil on the seals and squirt it into the bearings as you rotate them. No need to put anything on the splines.
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post #5 of 10 (permalink) Old Jun 29th, 20, 5:23 PM Thread Starter
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Yes, I have the posi traction additive...

Okay, so Ill just take the stinky 85-90w gear oil and squirt some into the bearings, roll them around, and then smear some around the lip of the seal...

Thanks
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post #6 of 10 (permalink) Old Jun 29th, 20, 7:37 PM Thread Starter
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How much gear oil for a 12 bolt? Is it more than a quart?

Just figured it would be easier to pour the majority and the additive before I put the cover on... then I’d only need to top off once installed...

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post #7 of 10 (permalink) Old Jun 29th, 20, 8:13 PM
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Re: What lube for axle bearings and seals, and axle splines?

Roughly 2 quarts, plus the additive. Put the additive in either first or after the first quart but before the second.....that way if you get to full just before the last of the second quart doesn't fit, you don't short yourself on additive by trying to add it at the end when it is already full.
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post #8 of 10 (permalink) Old Jun 29th, 20, 10:22 PM
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Re: What lube for axle bearings and seals, and axle splines?

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Originally Posted by 1966_L78 View Post
Okay, so Ill just take the stinky 85-90w gear oil and squirt some into the bearings, roll them around, and then smear some around the lip of the seal...
Funny - I used to think gear oil was the WORST smelling thing in a car...…. right up until I changed rear gears for the first time in a Impala I once had. After that successful experience; gear oil doesn't smell bad at all to me now!
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post #9 of 10 (permalink) Old Jun 30th, 20, 3:18 PM Thread Starter
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Re: What lube for axle bearings and seals, and axle splines?

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Originally Posted by RAIDER SS View Post
Funny - I used to think gear oil was the WORST smelling thing in a car...…. right up until I changed rear gears for the first time in a Impala I once had. After that successful experience; gear oil doesn't smell bad at all to me now!
It was funny, because my daughter said the garage smelled like eggs... I didn't notice anything, then I realized it must the the gear oil outside...

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post #10 of 10 (permalink) Old Jun 30th, 20, 3:34 PM
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Re: What lube for axle bearings and seals, and axle splines?

the bearings depend on oil from the center to find its way out to the end. I coat the axles as they are installed and fill the pocket around the bearings , and roll the rollers to coat thourghlly .Then I fill/overfill a little if possible. A little messy but worth it. It wouldn't hurt to jack up the left side as high as you can, let it set 5 minutes , then do the right .That will get some oil on all the flow surfaces

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