1999 Saturn SC2 trans replecement

First of all thank you so much for your donation. It sound's like your roll pin broke in your differential and it came apart and broke threw your transmission case. To replace your transmission you would have to get the front end of your car up as high as you could. You would have to put the Jack stand's behind the sub frame because the sub frame has to come out. You would also have to get a engine support to hold the engine and transmission up from falling out when you take the subframe out. You put that in place then take the sub frame out.I recommend and own the OTC stinger one it's cheap and set's up easly on the saturn's. Once you get the sub frame out then you have to get a Jack to hold the transmission in place while you unbolt it after you take the cooler line's shift cable etc off it. It's a pretty big job unless your really good with working on car's I wouldn't attempt it yourself.

Not a bad price on a used transmission your welcome glad I could help you out. Thanks again for your donation and thank you for using 2carpros.