Ring & Pinion Lube

[Jim B]

Originally Posted by Myron Piatek

To elaborate on this, the aftermarket, non-adjustable bearings normally used on Mopar rear ends are the sealed "Green" bearings. The OEM adjustable versions may require gear lube. But I haven't looked at one, much less used one for decades.

The Mopar OEM 8 3/4 and Dana 60 axle bearings get packed in grease (like front wheel bearings) prior to pressing the assembly on the axle shaft. There is an inner grease seal in the housing that prevents rear end fluid from reaching the wheel bearings.

[Myron Piatek]

Originally Posted by Jim B

The Mopar OEM 8 3/4 and Dana 60 axle bearings get packed in grease (like front wheel bearings) prior to pressing the assembly on the axle shaft. There is an inner grease seal in the housing that prevents rear end fluid from reaching the wheel bearings.

Thanks for refreshing my memory. At least I got the first part right.
I believe some of the other Mopar axles with c-clips and straight bearings use gear lube?

[Jim Wahl]

You are correct! After pulling the rear apart I fully understand now. The rear in my car is a complete Moser fabricated unit using a stock housing. It is braced and has a Pro Gear and the axle bearings are sealed. I am still not comfortable with one quart and have put two quarts of Amsoil gear lube in. Boy, that aluminum chunk IS lighter than the iron one! Jim

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[Phillip marvetz]

Originally Posted by Jim Wahl

Boy, that aluminum chunk IS lighter than the iron one! Jim

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You're going to get it for that,lol.

[Jim Wahl]

Originally Posted by Phillip marvetz

You're going to get it for that,lol.

Just seeing if you're listening! Jim


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[Reed Granrt]

I have a question or an observation,If you want to know how little friction you are creating--why not mount a EGT in the rear and hook it to a data-logger so you can get a play back and look at the run and then make changes.
reed

[BlueOval Ralph]

You can buy paint or tape kits that register temps.

Originally Posted by Reed Granrt

I have a question or an observation,If you want to know how little friction you are creating--why not mount a EGT in the rear and hook it to a data-logger so you can get a play back and look at the run and then make changes.
reed

[Ed Wright]

Or, you could just watch the MPH clocks.

[BlueOval Ralph]

You can buy paint or tape kits that register temps.

Originally Posted by Reed Granrt

I have a question or an observation,If you want to know how little friction you are creating--why not mount a EGT in the rear and hook it to a data-logger so you can get a play back and look at the run and then make changes.
reed

[Pvt Parts]

Originally Posted by BlueOval Ralph

You can buy paint or tape kits that register temps.

Back in the early days of Pro Stock, Bob Glidden fabricated a small sump like kick out in his rear end housing that had a bung welded in it for a heating element similar to a water heater, only smaller. The heater was plugged in between rounds to keep the gear oil up to temp. That was long before synthetic gear oil was up to speed.