Q Recently my son-in-law replaced the 42RE transmission in his '96 Jeep Cherokee with one purchased at a salvage yard. The transmission works well in all gears except overdrive. It will not go ...

Transmission options are limited to the AW-4 or 42RE auto in the 4.0L Jeeps, and either the Chrysler-built 46RH, 44RE, or 46RE transmissions as the years progressed behind the V-8s.