Leaf Spring Pad replacement

I am trying to find a place to order new leaf spring pads. They are the pads that sit between the leaf spring and the perch. As you can see from the pics, mine have seen their days. I did a search on the forums and found this:
http://www.forabodiesonly.com/mopar/showthread.php?t=110760&highlight=leaf+spring+pads
Those pads are for the full size A-bodies like the roadrunner, etc... Do they fit the Duster too? I have seen pads for the GM cars on Jegs and Summit and they look pretty similar. Would they work or do they have different pin locations and leaf widths? I know someone has had a similar issue. Thanks!

Ken