Lower Ball Joint '78 to '86 - 928 341 049 14 - Porsche Was 928 341 049 10 & 928 341 049 12 #5 on the PET Drawing If you are replacing an early alloy ball joint you will also need one eccentric per side. You can reuse one of the eccentrics but one will need to be replaced on each side. Part number is 928 341 466 01.