due entirely to the pain in the butt to remove, i would have every bearing looked at and replaced if it was anything less than perfect. there is also a shaft in the tail section that is known to wear. in the end, you could be looking at about $3k to do it all though.
might be better to have it removed locally by your guy, and then the box shipped to bobby at california motorsports in scottsdale az. he is arguably the best on these boxes. he also has a deal with yellow freight, and has very reasonable labor prices. it will take longer, and may not save you much, but you'll get a great job that you won't have to do over.
94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating
www.968forums.com
"It isn't nearly as expensive to do it right as it is to do it wrong."