After many busted knuckles.....

[tsubaki]

There are spacers in the clutch that may need a couple of them removed.
One way to tell is, if it engauges initally and then releases at higher rpms.
We found this out on 3 Chrysler products after exhausting everything else.
Basically the electromagnet can't now support the clutch due to the wear on the clutch.
Many compressors have been replaced due to this, when removing some of the spacers would give the clutch a couple of more years of use.