Switched spindles and now there is interference

The bolt and nut is pretty long, but its worth a try. If anything I will cut the bracket and redesign that one edge. Probably not that easy knowing my luck.
Are you using the proper length bolts?
The factory bolts are 1 3/4 inch in length.
Rather hard to find them in that length at hardware stores, other than in 1/2 inch increments such as 1 inch, 1 1/2 inch, 2inch.

http://www.forabodiesonly.com/mopar/showthread.php?t=291334