i was just wondering if there were any people out there who had experience with converting the pilothouse B-4 1/2 ton front brakes to something more modern. we were going to stay stock, but we found out that the drums are shot and new ones are $500 NOS each. we were looking for some more modern drum brakes that could be adapted to fit that DONT have an astronomical price tag. not sure whether to just swap the whole front axle with something, or find something that could replace the original brakes with the same spindles. almost thinking universal trailer brakes could be adapted? any help would be appreciated.