i havnt come up with a answer i got nowhere with repco they could'nt use the engine number they didnt know how, anycase found out on ebay something interesting
Holden Commodore VN 3.8Ltr V6 Series One Harmonic Balancer.
Crank Bore : 34.93mm (1.375in)
Pulley Diameter : 179.8mm (7.079in)
Nose Diameter : 49.1mm (1.933in)
Weight : 7.71Lbs
Overall Width : 85.5mm (3.366in)
Holden Commodore late VN - VP 3.8Ltr V6 Harmonic Balancer - from 12/90-on.
Crank Bore : 34.87mm (1.373in)
Pulley Diameter : 175.8mm (6.921in)
Nose Diameter : 49.15mm (1.935in)
Weight : 7.72Lbs
Overall Width : 85.45mm (3.364in)
is this the differance or am i way off?