Rolls-Royce 20/25: P series

Notes on P series 20/25

P series chassis have chassis numbers prefixed GGP, GDP and GWP.

New features in P-series
Narrow wheel hubs fitted.
Crankshaft bearing diameters increased: 2.125" diameter main bearing journals and 1.75" crank pin diameter.
From GDP36 - modified rear shock dampers.

View the Chassis Numbers for the Rolls-Royce 20/25: P series