With the lift blocks, you'll be unlikely to be able to re-use the 2WD u-bolts, so you'll need to source new ones. You can actually buy u-bolt flip kits for about the same cost as a set of u-bolts and some even include shock mounts.

In fact I should have my old flipped u-bolts/spring plates/shock mounts for sale once I get the new axle stuffed under my truck. The u-bolts might just be long enough to handle a lift block.

r.c.brown@ieee.org
TruckEditor@tlca.org
Project: 4Crawler
4Crawler OffRoad - 4x4Wire discount code