I have never seen a kit to fix the 60/40 Console.
have you ever considered taking the existing console out, replacing the center console with an explorer short console, then if the Console Arm Rest breaks there is a fix for it !
I took out my 60/40, from my '03 EDGE, replaced with a set of buckets from an FX4, and found a good center console, but when I took out my seat, Driver and passenger, I found the following:
1) the passenger side is a standard bucket seat, and other than the track and floor pan, it was the same as the drivers side, less the Lumbar Support.
2) the Extended Arm for the 60% side of the seat was bolted on.. not welded, so it could be removed and a new seat cover found.
3) my tracks and floor pan also bolted on and bolted directly to the FX4 Seals.
Everything was a bolt in, funny, most write-ups said welding was required !
I know this doesn't answer your question about fixing the 60/40 Console Problem, but it does give you options to replace your seats with 40/40/Console Seat setup.
Remember you may only need to replace the driver's side seat not both seats !
Ltr