The *bling* option:
http://www.offroaddesign.com/catalog/uboltreversal.htm
An upgrade, too, since the u-bolt threads get outta the dirt, rocks, mud that ruins the threads for the next time they are removed.
From what I've read, one can source used 73-? rear u-bolt spring plates cheap and add either spring shop made u-bolts or store bought u-bolts for $20-$40. I've found plated Trailmaster u-bolt kits with tall nuts for <$15 per pair. Used 73up rear u-bolt plates should <$10.
ORD's fine kit comes with powder coated plates and zinc plated, Tuff Country u-bolts (TC part #17706) with tall nuts and thick, grade 8 washers. Quality stuff in one kit.