SAABs of the 99 and 900 series have only a 3 speed automatic transmission (Borg Warner type 35 or 37), but they are prone to failure of the two prongs on the torque convertor which drive the oil pump when the bushing on the torque convertor gets enough wear to allow it to rock around a bit on the flex plate. There is simply too long a span between the rear main bearing of the motor and the bearings on the transaxle transfer chain to support the things in between properly. It will need a new torque convertor and oil pump and a thorough cleaning of the rest of the transmission, but perhaps it is time to just put in a rebuilt from Eriksson Enterprises (Conn.), the best SAAB trans rebuilder.

Judging from the misinformation in previous posts on this thread, you'd better familiarize yourselves with saabnet.com -- the best marque-based auto information site on the net since 1988!

Actually, I've got the powertrain from #2 daughter's '90 900S scattered all over my garage floor right now for just this reason, but we've more or less decided to watch EBay for a "donor car" to convert hers to a 5-speed manual like her '92 900 turbo convertible. That's the best solution by far, and really very easy with these.