You can buy new coil buckets/brackets and have them welded on.

I'd just get another axle. D30s are pretty much a dime a dozen. I threw two out last year.

 

 

I'd probably use the Artec* ones.

http://www.artecindustries.com/Coil-...xle_p_614.html

*Disclaimer. I don't buy fancy laser cut brackets normally as I just make my own stuff, so I have no actual experience with these or Artec at all, but it seems like they know what they're doing and people tend to be happy with what they bought from them. They're better designed than a lot of the coil brackets at least, which use an inferior method of retaining the coil spring.

You also might be able to find the actual OEM bracket from a dealer or on eBay. There is a Mopar P/N for it I believe, somebody will likely chime in if they know better.

How are the other brackets on the axle doing? Artec makes a full kit of all of the brackets, might be worth looking into.