833 making odd noise in 2nd gear only

Can it slide out simply by unbolting it from the bellhousing?
Pretty much. Remove Shifter, shift linkage, Driveshaft, crossmember, and 4 gearbox bolts. Support back of engine. If you let the engine hang a bit remove your distributor cap. (I think that's it.) I'm sure someone will correct me if I'm missing something.