42RH advice needed

How's the fluid look/smell? Adjusting the kickdown band might help but usually if it's slipping that badly it's to late....

Rear clutch is applied in all forward gears, if it were slipping you should notice it in high gear... OD direct clutch is backed up by the OD sprag so I doubt that's giving you a problem...

Try adjusting the front band & don't expect much...