Packard Forum Index » Post-War (1946-54)

Hi everyone , back again so another question on my 22nd
Driving it - runs, shifts , stops great ! Everything is going great . Step on the gas it goes !! Runs like a sewing machine
BUT ……..
Slowing down however there is a chatter almost as if a “brake shoe has came loose” type of chatter ONLY freewheeling and in gear . Push it up out of gear , sound stops . Clutch out or in no change .

U joint?

If by Freewheeling you mean the car has overdrive then suspect the overrunning clutch. To test take it out of overdrive.