seems to be some incorrect information on EUH final drive gear ratios floating around even in the bentley.....4.23 is not the correct ratio ....3.38 is ...4.23 is a common ratio for gasser 02J transmissions ....for example at 70 mph with 4.23 final and .744 fifth with 195/65 15 tire (factory on mkiv pd) your rpm would be a whopping 2964 rpm ....is anyone reporting this incredible rpm @ 70 in their MKIV PD's ? ....more in line is an rpm around 2400 @ 70 mph....with the PD equipped mark 4