1997 Explorer transmission slips

[Ronnie Overby]

1997 Explorer XLT 4x4. Transmission slips out of gear between 2200 and 2600 rpms. When I decrease Rpms it picks back up. Doesn't slip out in 4 wheel drive. Has anyone had a problem like this?

 

[BrandedSohcman]

Valve body gasket blew out the side near the reverse servo motor on mine. Replaced gaskets, filter and worked great until it started doing it again.