DriveShaft

I change the U-Joints on the driveshaft front and rear and now the driveshaft won't fit in the rear differential i pushed it in the transmission, should the driveshaft be touching the transmission in order for it connect to the rear differential because it won't go in the transmission any further how can i get the driveshaft to fit back in?

If the output yoke is the original, the length should not have changed. It may help to raise the vehicle differently to unload the rear axle and allow it to drop further.

Thanks i will try that.