any suppliers with the B body cables? have a 73 delta 88

 

Part number?

 

Try https://www.vintagepartsource.com , there is a page dedicated to Oldsmobile parts suppliers, possibly one or more of them might have that cable.

 

are you looking for front,rear, or both cables? Same for 71-75 B (Delta, etc) Cars,, 73-74 A Body.
My 4/75 parts book shows # 6262344 front, #9611970 rear.
I don't have a spare 6262344, but do have a couple 9611970 nos.
You can also check with Brett (Paladin) here- he has a good bit of 73-77 used..