Hendrickson HTB LT suspension

[biscuits and gravy]

I don't know if you can buy the hard to find parts directly from these guys, but they specialize in the suspension parts and supply suspension repair shops around the USA.

You may have to request them to advise you a repair shop or a distributor near you. They are called Dayton Parts LLC.

http://www.daytonparts.com

They supply a shop in Atlanta that specializes in replacing big truck shocks, springs, hangers, bushings and bolts. They do all the heavy duty trucks including International.