Hello! Does anyone know the length of a full-size wagon driveshaft. I have a 1986 Buick Electra Estate Wagon (307, th200-4r) and I'm having this problem: see picture. The rear axle is where it's supposed to be and the engine mounts are fine. So I need to see if the driveshaft is the wrong one or not. Any ideas on how this happens if it is the right driveshaft?