Haven't had a chance to do any research yet.
Is this something that can be done with the trans in the Jeep??
Most of those services can be performed in frame. I respectfully disagree with VD2 as to solenoids on a th400. I think those are servos that engage the bands via the valve body hydraulic pressure and the vacuum controlled modulator. Never the less, it is a relative inexpensive fix. A comprehensive fluid and filter change will cure a lot of gremlins of those transmissions. Don't forget to make sure the transmission pan is good and flat before putting back on with the new gasket. God bless.
Jon In Tucson
Jeremiah 17:7 "But blessed is the man who trusts in the Lord, whose confidence in Him."
"The secret to a Jeep, especially a CJ, is you can't
panic." - Mike
"I may not be a smart man, Jenny, but I do know grounds."