833 belhousing adapter ring

I have the OD with slant right now. 3.55 gear. The box needs rebuilt due to 3rd gear crunch and 4th gear whine, and gold particles in the fluid. I will tear the OD trans down after I install the 1970 833 close ratio rebuilt box I just got from NC yesterday. Only thing I need is the Brewers bearing retainer that member 66fs mentioned. I guess once I get the OD down, I can remove the bell and check the clutch, even though I really don't want to because it works. BTW, can I use the current shift rods and levers?