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Weekend Racer

10-14-2017 10:32 PM

oil leak

Diff leaking through pinion nut thread,12 bolts chevy, Mark William Yoke ,solid sleeve, Amsoil 75W-90 synthetic .Any idea what going wrong?

Thank!

ss3011

10-15-2017 01:02 AM

Re: oil leak

Many of the new nuts have a sealer pre-applied to the threads and flange .

SStockDart

10-15-2017 03:26 AM

Re: oil leak

Can't be leaking much, as you described. Reapply the pinion nut after loading up with silicone. Or, if you dare, jb weld

Alan Nyhus

10-15-2017 08:25 AM

Re: oil leak

Permatex makes an RTV specifically for gear oil. I used it to stop the weeping along the pinion splines.

https://www.permatex.com/products/ga...-gasket-maker/

Bob Mulry

10-15-2017 12:14 PM

Re: oil leak

I thought that everybody put PTV on the inside of the companion flange spline, so that when the flange went onto the pinion any air gaps could be taken up. The extra RTV would be pushed out and end up under the washer and make it a double seal...splines and washer..

Been doing it that way for 50 years with good results..

Just sayin'

Weekend Racer

10-15-2017 02:07 PM

Re: oil leak

Thank you everybody for your advices !!

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