Howdy Folks:
Late to the party, but thought I'd chime in here — I bought a replacement PCM from Mark
@Wranglerfix in late 2020 — It solved all the problems that my newly inherited '05 Wrangler was having (except for the bouncing speedometer needle); Needless to say shifting suddenly became a dream, and highway driving was possible.
Starting about December 2022, the Jeep started exhibiting some rando error codes, sporadic shifting issues, etc. It was off and on for a while, but disconnecting/reconnecting everything seemed to fix things up (clearing out the electronic fuzz?). At any rate, symptoms came back, and I finally knuckled down and gave WranglerFix a call.
They couldn't send me a loaner, and of course I was out of warranty, so I ponied up for a new one — which they kindly sent on the quick, along with a return label for the first one. Haven't heard back from them yet regarding status of the one I sent back. Fingers crossed it can be diagnosed/fixed and returned as a backup.
I should note that the new PCM came with a snazzy hot-rod paint job
Patrick
PS: I remember spending a long time on the phone with Mark in 2020. Good conversationalist!