Ho 52

[SPACEZOMBIE]

I've been learning about these Eaton HO 52 rearends, I need some advice.

On one side,the brakes and all were soaked with diff fluid, I saw on another thread that the axle seal caused this, and that they should never be reused ?

Where can I order the new mettle seals, that is online.

Will this fix that problem ? I have a guy at NAPA replacing this bearings, they have a machine shop, also turned the rotors. I'm replacing the brake shoes, wheel cylinders, parking brake cables. I'm going to pack the bearings, they were bad.

The old brake shoes wore some indentions onto the back plate, I f I need to I could weld some beads and grind them off, I don't know if it;s really necessary. Are there any seals inside the axle housing that I need to replace, I'm trying to do this once and I want to ride and not walk. Thanks Tim

[WIDESIDE72]

Nice truck! I would not re use soaked pads. They are cheap enough to replace. New seals should fix the leak but be sure the axles don't have grooves worn in them. If so you may he able to buy seal savers. Your napa guy should be able to tell you. I would do like you say to fix the grooved backing plates. Be sure to use lubri Plate next time
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[airdale94]

I have not heard of metal seals. If your seals are leaking they need replaced. But you can "reuse" them. If NAPA can get the bearings they should be fine for the seals also. Here's a parts list.

Here is a good link.

http://67-72chevytrucks.com/vboard/s...d.php?t=200268

[Stocker]

I recently had the axles out of my HO52 to do a brake job and the metal (aluminum) flange gaskets were looking a bit seedy so I got new ones at my local NAPA store. If I can find the receipt I'll check the part # but it's probably the same as posted above.

I reassembled with Permatex 81182 RTV sealant designed for use with gear oil. Good stuff, no leaks at all.


Just to clarify, there are no seals inside the axle housing -- only where the axles are bolted in place (where the flange gaskets go).

[SS Tim]

Tim, If you don't have a factory Service Manual and a Chassis Overhaul Manual now might be a good time to get them. A reprint from a board vendor or eBay will work. Lots of really good information.

[pumpkin]

The newer GM FF rear diffs have an awsome two piece seal that works. it presses into the drum, and is a tight fit on the axle. The two parts of the seal spin, so any rust or damage on the axle isn't a problem.

[SPACEZOMBIE]

You are right on, thanks for the advice.