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Fred T · 07-13-2004, 10:45 AM

Don't know just exactly what's leaking from your description. Rear cover, pumpkin to housing or the pinion seal? The gaskets and seal are available from a local parts store. They do need the HO52 id to get the right gaskets. Usually the pinion seal is what leaks, it's just aft of the u-joint. Requires removal of the trunnion to replace, and if the shaft of the trunion hs a groove in it you also need a redi-sleeve.

On the 3/4 ton auto trucks, the 4.10 gear was stock. 3.73s were available as an option on the Blazer, I've been told.

07-13-2004, 10:45 AM	#3
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Don't know just exactly what's leaking from your description. Rear cover, pumpkin to housing or the pinion seal? The gaskets and seal are available from a local parts store. They do need the HO52 id to get the right gaskets. Usually the pinion seal is what leaks, it's just aft of the u-joint. Requires removal of the trunnion to replace, and if the shaft of the trunion hs a groove in it you also need a redi-sleeve. On the 3/4 ton auto trucks, the 4.10 gear was stock. 3.73s were available as an option on the Blazer, I've been told. __________________ Fred There is no such thing as too much cam...just not enough engine.