I have an au2 xl ute and the diff is leaking around the face where the bolts are.Now its only slight but my local ford dealer said it needs a gasket put in it.I took it to a diff specialist and he said the same.He also said it was common on the ELs and that ford dont put gaskets in the diff they just seal it in the factory.Why the frig not.?Mine is a single spinner .Is it the same as the EL diffs.?Some of the problems ive had since ive had it are just crap workmanship.Theyve only been minor .I think ill lean towards a jap motor next.Anyway merry xmas boys.