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BTF/PTM

Best way to de-gunk a differential?

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The factory R180 out of my z (it has a non-LSD R200 in it) is absolutely caked with grime. Is there a specific method and/or cleaner that's best for getting all that off? Can the whole assembly be dunked in a bucket full of solvent? Perhaps I could have it hot-tanked?

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My first thought is a parts washer and wire brushes to get the gunk off.

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How about... wait for it... Gunk.

You can put the diff in a parts washer or a solvent tank, but if you submerge it you'll get solvent in the oil. Not sure what effect the solvent will have on the seals either if that matters. I put my bare housing in my solvent tank and cleaned it that way before reassembly, worked great.

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Wire brush, brake cleaner or acetone and a little elbow grease and time always worked for me.

Rinse off and a fresh coat of paint and you'll forget how crappy it looked before.

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Ya, there is more than one way to clean your rear-end...LOL

Actually, I was thinking that you have to be careful. If you scrub your rear end too hard with a wire brush, it might keep you from being able to drive your Z.;)

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Actually, I was thinking that you have to be careful. If you scrub your rear end too hard with a wire brush, it might keep you from being able to drive your Z.;)

Ya, NOW you tell me...... :stupid: LOL

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Soap and hot water, pressure washer works good. Light enough to bring to a car wash if you dont have these items! Easiest part on the car to clean, IMHO.

As others have stated, no solvent tank!

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K, here's what you do. Scrape of the major stuff with a plastic scraper. Then get some Easy Off Oven Cleaner-the lemon scented one is quite pleasant. Spray it on, scrubb a bit with a brush, and then rinse off.

The nice thing about the oven cleaner is that it becomes water soluble, so it's easy to rinse. If the diff is out of the car, I would tape some plastic over the drive flanges so that you don't get water in the bearings or gears.

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Thanks guys! :) Looks like I just need some spray cleaner and a wire brush for the worst of it. I'd like to pull the rear cover to see what gear ratio it is and just to look becuz I've never opened a differential before, so maybe I'll do the external wire brush scrub and then open it up and refill it with fresh oil and paint it so it's shiny like Kinfish's.

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I used a powerwasher, then small bbq wire brush with solvent and repeat. I did scratch up the front aluminum with the brush when I tried it there so I used a softer nylon golf club cleaner bruss.

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