D20 Front Output Yoke Nut Seal

[turbotim2]

Am I remembering correctly that there is a seal behind the D20 (J-shift) front output yoke nut? Mine seems to be leaking but I cannot seem to find a replacement seal.

Thanks!

 

[Glass Pony]

I was able to source an O-ring at my local Ace Hardware store.
1.200" OD x .140 thick.

 

[englewoodcowboy]

You can either source an O-Ring as stated above or drain the T Case, pull the nut and washer, apply some RTV in the base of the pocket and reinstall the washer and nut, let it dry for a few hours and install new oil. When I rebuild them we do the RTV for added measure and have had no leaks there. We have found that the yokes tend together a grove from the seal and when I rebuild them now we just replace the yokes at that time with a new seal etc. We also have had leaks on the bolts that hold it together and we use a non hardening sealer like Permatex on all of the threads to take care of that as well.