diff covers and fill plugs - Ford Powerstroke Diesel Forum
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Old 09-22-2013, 10:49 PM
Rodslinger's B1TCH

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diff covers and fill plugs

so the fill plug on my rear diff is stripped and I don't feel like screwing around with trying to fix it. i'm thinking about picking up one of these diff covers and drilling/tapping a fill plug into it.

Riffraff Diesel: G2 10.5/10.25 Sterling Aluminum Diff Cover

does anyone know how thick this cover actually is? if it's too thin, I might just end up getting one of these to put in the cover

I am also thinking about installing the fill plug higher than the stock height but that might mess up the oil slinging system inside if that's how it works... does anyone know if it works that way? I've known people with 8.8 fords that killed their pinion bearings by filling the diff through a hole in the top of the diff because it seemed smart to have extra oil in there.
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Old 10-06-2013, 05:00 AM
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Rear diff cover

I installed a Hy-Tec cover several years ago. They are a little pricey, but have a fill/dipstick on top, o-ring seal, stainless hardware, and expand the reservoir by about 1 1/2 to 2 ltrs. I did get a little "resonation" gear hum, but overall, a great product and improvement on stock.
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