Yes, the brake shoes and magnets are available as replacement parts for 12 inch Nev-R-Adjust brake assembly # 23-464. Some brake assemblies have expensive replacement parts and on those it makes more sense to replace the whole assembly. For replacement shoes, left hand side use # K71-675 and for the right use # K71-676. The magnet is # BP01-225. The cost of a magnet and shoe/lining for one brake assembly costs more than the whole assembly.
Going to disc brakes is a great idea. Not only... view full answer...
The T-bolts in the Yakima Replacement T-Bolt with Nut for Yakima Rack and Roll Trailers # Y8880184 are going to measure 3/8" x 1" long. The next size up would be 3" long, but if you can let me know the product you're trying to replace the hardware for I may be able to find an appropriate hardware replacement kit for you. view full answer...