If your center bearing (supporting the center u-joint at the front half of the driveshaft) is going to be fixed to the frame (as it should be), then you really only need a slip joint on the rear section of the driveshaft. That's where the shortening of the driveline is going to occur with compression of the suspension. But if the tranny you're planning on using has a slip connection, it won't hurt to include that on the front section.
Last edited by klhansen; 09/24/2016 12:07 AM.
