Hi all, I’m sure these questions have been asked many times before, but I’m still learning about the Mk 2 and really appreciate any advice.
I intend to convert my 1962 Mk 2 from a BW DG250 auto to a 4-synchro manual with the short Laycock de Normanville overdrive. I’m pretty sure I know most of the mods required, including the pedal box, flywheel, propshaft, clutch actuation, OD switch, rear mount, etc. My primary concern is the transmission tunnel - does this involve some minor reshaping and cutting a hole for the shift lever? Or is it more significant? I see that both the carpets and the center console dash panels are different because of the tunnel shape.
Also, is there much difference in the layout of the late Mk2 with this arrangement vs the 420G? Does the 420G have a cast iron version of the L de N overdrive? and are the 420 gearbox mount and driveshaft different than a late model Mk2 with OD?
Really appreciate the advice as I’m sure it’s been done many times.