flywheel spacer for th350? not sure what ur talkin about, is it for the flexplate? The tranny i have is same spec as the old muncies and most all gm trannys so im pretty sure it will work in your application. i got the bell housing from keisler, along with the pilot bearing, whatever flywheel you want, i used a dual friction centerforce clutch and pp for an 02+ camaro, and you just mount the fly wheel, clutch and pp, and put the bell on the block and measure the distance from the tranny mounting surface to the clutch fingers, then call mcleod for the right hyd t/o bearing. or if using mech linkage the its easier, just adjust linkage. bell housing has provisions for both. hope this helps, with the right bell you should not need any spacers..... im pretty sure....