Day's Transmission & Repair Shop
As for repairing a transmission, all it involves is to fix or replace a specific component (minor component, of course) without rebuilding the entire body. Thus, if the transmission is seriously damaged, you need get it disassembled and inspected, with worn or damaged parts replaced and then reassembled to factory specifications, along with new gaskets, seals, clutches and bands. And we call this process a "rebuild"