I am not sure where people get that the 42re is unreliable. Chrysler used it starting 1993 at least with the first gen Grand Cherokee. It's old technology no doubt, but I have 170k on mine and haven't had 1 issue. The only PM I've done is 3 ATF drain and fills/ filter changes.
Guys get these, perform no PM and beat the [censored] out of their Jeeps only to blame the transmission when it fails (even if it still has the factory ATF.)
They do have a few sensors that are prone to failure, but they are about $100-$150 for OEM and all one has to do to replace them is drop the pan.
As far as the OP's Jeep, you certainly are 1 of the few.
Guys get these, perform no PM and beat the [censored] out of their Jeeps only to blame the transmission when it fails (even if it still has the factory ATF.)
They do have a few sensors that are prone to failure, but they are about $100-$150 for OEM and all one has to do to replace them is drop the pan.
As far as the OP's Jeep, you certainly are 1 of the few.