Hey guys,

what I’d really like to know is can the tranny valve body be serviced in one form or another? Taken apart, cleaned? What about just replaced? If so, what’s the ballpark for a new (rebuilt maybe) one?

My tranny is kinda acting up and the shop pretty much said its most likely something with the valve body. What say you?

To successfully rebuild valve bodies requires a skill, which one learns after many hours of patiently disassembling and reassembling. Only then can you identify a worn bore, valve, or springs and put it all back together. You can rebuild a valve body. Let the shop that diagnosed the cause rebuilt it.


At times you have to make special tools to remove the valves and insert the valve and spring retainers.

For sticking valves I use a nylon or steel round brush, dipped in ATF to clean the bore, other times I make a cleaning paste with fine valve grinding compound mixed with ATF, depending on the valve body or valves, steel or anodized and how much the valve is stinking. I also flat sand the bodies on a flat plate using 220 sand paper and ATF.

The valve body first gear start modification, is one secret I will never share.