ok to the best of my knowledge,,,i,m not real sharp on all the stats,,,you got a b body,,,b for boat,,i know cuz i got a big ole oldsmoboat an 84,,,,and the later body style was the c body but as far as the break down in the years of the fullsize b body being produced i could,nt tell ya,,,i don,t recall the last year of the of big car and the start /finish of the more curvasious rear drive fullsize gm platform,,,,
There's not much of a difference between B-Bodies and C-Bodies, except for the wheelbase, and over all length. 77-90 B-Bodies, like the Chevy Caprice, Olds Delta 88, Buick LeSabre, and Pontiac Parisienne all had a 116" wheelbase and were 215" long. C-bodies of that era, such as the Buick Electra, and Olds Ninety-Eight had a 118" wheelbase, and were 220" long. All the wagons with the names listes above were all B-bodes though. Despite their C-body sedan counterparts, they still had a 116" wheelbase, but the front fenders were stretched to keep the 220" lenth. Also you can swap parts between any B-body, sedan or wagon. However, a C-body sedan will not fit with a B-body.