i replaced my extesnsion housing seal about 1 year ago. the replacement seal had the rubber boot and looked exactly like the old one.

advance can not seem to find one with the boot, will the one without the rubber boot work as well?

 

Yea, the boot is more or less a dust/dirt cover.

 

ok, i see. guess it doesnt prevent much dirt, or else it wouldn't be leaking!

 

Well maybe the tail shaft bushing is loose or a TC saver is needed. Should last more than a year for sure.

 

well it started to leak when we got like 15 inches of snow. so i thought maybe some salt got in between the seal and drive shaft... not sure.