Seatbelt Question

Rats! It finally happened! The driver side (naturally) seat belt retractor broke on my 93 Fleetwood. I took the trim piece off at the door pillar only to show that the spring had broken and pierced through the retractor mechanism housing. I know that the retractor must be replaced as a unit and I don't want to buy a new one. The local auto recycling center has a 94 Fleetwood and I think the seatbelts are intact. If not, there are a few Caprices on the lot. Does anyone here know if the seatbelt mechanism for the Caprice and the Fleetwood are the same? Thank you for your help.