I have a 1986 Dodge Ram truck. Can a brake caliper be rebuilt or how can I get it to work without rebuilding it?

 

the best way is to buy one from your local aftermarket parts store
but thay are rebuildable

 

I think a lot of small places have stopped rebuilding brake cylinder/calipers because of the liability associated with it. When I had caliper problems a few years ago (1991 Dodge Ram) I was offered the choice of new ones or rebuilt ones. They send them in to a manufacturer just like water pumps, carburetors, etc.