IMHO, there's no reason to buy galvanized rims for a travel trailer since you're not dunking them in salt water. Save those for the boat trailer.
To service the brakes, buy the entire brake assembly (shoes, magnet, spring, backing plate, etc.) as a kit. They are about $30 per wheel and although just slightly more expensive than buying either the shoes or the magnet (which may both have to be replaced), they save you alot of time and effort. All you have to do is remove the 4 backing plate bolts, cut the old wires, and the old ones are off. Reverse the process to install the new assemblies. I bought mine at easternmarine.com, where they are often on sale.
If you replace the magnets, you will need new drums since the armature surface cannot be machined. Any shop can do the surface where the shoes rub against, but the half dozen specialty shops I called don't do the armature. Drums aren't expensive...maybe $30/wheel. Since I live near LA, there is a Dexter distributor about 25 miles away, which is where I bought them.
Dave
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2000 2720SL & 2007 3124KB
2005 Toyota Sequoia
Twin Battle Born 12v 100Ah LiFePO4 (BBGC2) batteries, 300W solar on rear shell, Link 10, Lift kit, Maxxis 8008 225 75/R15 E tires
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