in my experience very few transmission shops do a comprehensive rebuild on a transmission, heres why. in order to do a real rebuild, it takes a fair amount of time and money. most people just do not want to pay what it costs to do it right. what u wind up with is a cleaning and half assed repair. everything in a transmission, which is a modern marvel is critical. tolerances are critical. hydraulic pressure rise is critical. many times the valve bodies are neglected. the valve body is the mechanical brain of a transmission., it must be perfect. it usually directs 5 paths of fluid flow and must be correct. you can put all of the heavy duty clutch packs you want, expensive fluid, ect, but the the apply pistons, drums, ect will only hold as tight as the hydraulic pressure forces on them, if not enough pressure, the clutches slip and burn up. the electrical solenoid pintles cycle hundreds of thousands of time and wear out,. replace all electrical parts AND harness in transmission.. have valve body rebuilt or replaced. have all gears checked for wear and slop, especially planetary. have all bushings checked for tolerances. put upgrades in such as heavy duty reverse drum, 5 gear planetary, upgrade the pump to 5 vein if I recall. replace plastic servos with billet aluminum ones... ALOT of potential failure points have been eliminated over the years in these transmissions. if your willing to pay for them, and find a guy who knows what he or she is doing, you can have a VERY strong and dependable transmission. DONT ask abt price right off the bat. ALL DAY LONG PEOPLE CALL IN AND ASK HOW MUCH.,... Go in to the shop and talk to the owner... Ask abt what they can do to build you a dependable transmission., pay close attention when they talk abt the valve body. there are oscillating valves that must be replaced. shift kits to optimize shifting, updated servos, ect. your transmission had a catastrophic, sudden failure,. it did not recieve fluid where it needed it when it needed it. the bronze chunks point to bushing failure . slop in the shafts can tear the teflon seals and allow fluid to leak by.
Think of the pump, fluid and valve body as the conductors of the system, they supply the clutches and servos the HANDS of the system the ability to do the WORK. IF THEY CANT SUPPLY THE PRESSURE AND BLOOD TO THOSE HANDS TO DO THE WORK, the hands cant hold strong and eventually lose thier grip.. the hands get smooth and hot and burn., The number one cause of transmission failure is PRESSURE RISE MALFUNCTION. If your rebuilder does not intimately understand the hydraulic systems , paths, pressure requirements in a trasmission, its not going to go well. its like a one legged man in an ass kicking contest, he just cant win.
