Our front shaft from High Angle uses a CV joint on the rear. If the 'Burb had a ton of articulation, Jesse would have equipped our shaft with one of his long-travel slip-shafts. However, since our suspension is fairly standard fare, this was not needed. After talking with Jesse, we decided to keep the 1310 U-joints. They should hold up fine, since our 'Burb is not going to be a hard-core trail rig.