My slant 420W (s/n: 134XXX) has alot of really loud clattering/clanking noises when driven in 4th and 5th gear. I haven't even popped any covers to peek inside the trans yet but some other posts mention shimming the ring & pinion. Before shimming, I like to upgrade whenever possible. I seem to remember a post where someone said you could use the ring & pinion out of an early 1010 as an bolt on upgrade to the 420/430 existing unit. The s/n of the 1010 had to be under a certain number. It's been a long time since reading that post and it's entirely possible the post was referring to a 430 only. Does anyone remember a similar post and if it would apply to my later 420W? Thanks.
sluhbmet
sluhbmet