The people at www.NashRamblerRubber.com were able to get my '57 Hudson Hornet to drive straight again. They are the source for the torque tube drive stabilizer trunnion. It's the shock absorber that goes between the covered driveshaft and the transmission. It goes bad because of oil leaks from the torque tube at the trans or differential, or age. When the torque tube flexes or lowers at the trunnion, the rear wheels will steer the car or cause unstability in driving. That's what happened to mine. The torque tube lowered enough at the trans to cause scraping and clunking noises from the inside turning driveshaft. When I had the trunnion replaced the noises disappeared and the car really drove straight and smooth again. Hudson & Nash had the same drivelines in 55-57, Nash Ambassador used torque tube drive from 49-57, so did Nash Healey & many AMC Rambler up thru 62. Good source and good to know.