[timgco]

pic of above post. This will allow the the threads from the two U bolts to be long enough for you to slide the new brackets on. Make damn sure you don't let your shock push the bracket down. USe a ratchet strap to hold that in place. I just turned my Rancho shocks to one and they stayed.

Once you get the leafs jacked up safely, pull your tire. YOu get way more room. YOu may want to slide the tire under there if you don't have jack stands for a safety