Generally
Only fits Limousines, Ambulances, Hearses + all models that have leaf springs at the back. . So if you have a two-piece intermediate shaft with a support bearing in the middle and the chassis is built by Cadillac, this is the correct ball bearing that sits in the support bearing rubber in the middle of the intermediate shaft between the gearbox and the rear axle.
This part therefore does not fit a regular Cadillac.