Is the oil pump the same on early and late 4 cylinders?
I believe that the 28 and 29 pumps are the same. But it seem 30 31 list as a gear style pump.
Hopefully someone else can confirm.
Ian
Ian is right. According to the master parts list, the Oil Pump Assembly p/n 41968, fits Q, U, 30U up to engine No. U-223883. frank