Maybe this is why a 4.80 is impossible for me to find for a SB,I dont think they ever put a hemi tranny behind a SB,did they?It sure narrows the field for me to look for a bell since i can stop asking ebay sellers if their SB housing has a 4.80" hole,since they never made them?
"There were three different diameter retainers: a 4.35" was used on most 60's A-833s, a 4.80" was used on hemi's 440s, and some 71-74 HD applications, and a 5.125" was used on 1975-1987 A-833-OD's".