Originally Posted by redoubthill

federalized Euro with a manual transmission

Originally Posted by 97 SL320

$ 350 for an installed transmission is basically no money and probably worth the risk. Repairing the trans you have will be $$. Be sure to keep the old trans for spare parts.

Fourth gear is 1 to 1 so you have some sort of gear train issue. I think there are some bolts in a clutch drum that can work loose, do a search on this site and there should be a pic.