rear axle u bolt kit

[mr48chev]

Zach you might have to return the favor and find a set or at least the plates in a wrecking yard. If you hunt a bit you might even find a set of plates that are already off. Wrecking yard parts pickers are famous for taking a torch to the U bolts though.
You should be able to order the U bolts at Napa if there isn't a Spring shop near to where you live.
Or call the outfit that LocDoc suggested and see if they will make them and ship them. 120 Miles one way would be a beer run in some parts of west Texas but I don't know about Iowa.