i like to use a large rubber deadblow and whack the differential area near the axle seal. be carefull though. i have seen the right intermediate shaft worn and seized into the differential assembly. hope this isnt the case with yours. you are going to replace the clutch cable, input shaft seal, axle seals, and shift shaft seal right? there is a new tranny oil for those too. it is pn mtf0063 at the saab dealer. i hear it is just redline synthetic manual tranny fluid. it works great. if you really like the car, you can update the clutch to a new-style hydraulic system. it replaces the ultra-crappy cable. you just bolt on a new slave, master, hydr. lines. it is a bit of work, but well worth it to me. if i had an older 900, i would do it no matter the cost. i have had so many bad experiences with those clutch cables. good luck.