Well, got my rig together about 2 weeks ago and took it out last weekend for it's inaugural run. Went pretty well. Decided to do another run this weekend. Well, this is what happened: Apparently, 5 of the 7 u-bolts and the 2 D60 pass inner bolts loosend up. Ended up shearing a centerpin in 3 pieces. Only took about 2 hrs to fix on the trail. Anyway, let this be a lesson to others. Check your freakin' u-bolts!!!! BTW, for anyone that says that looks really unsafe, the rig was winched off from the rear to hold it and was also tied from the side to prevent it from tipping sideways and falling of fthe jack.