something you may not be aware of...Dexter brake assemblies complete are only a few dollars more than buying shoes and magnets. im getting parts for my buddies enclosed trailer, with 2 3500# axles. list price on the dexter web site is $75 for a complete 10x2 1/4 electric brake. list on shoes and a magnet is almost 60, throw in springs which should be done, or an adjuster and you went over a new assembly. and i found new complete assemblies on the web for 38 apiece, 11 shipping. then its just 4 bolts and 2 wires, and you have new brakes. dont forget to get the drums turned. just a helpful hint i learned along tome ago.