i am replacing the bw35 with an m400 manual in my 74 164e, it was originally a m400, have nearly everything except a clutch, have found some on line but it says it only fits 69 to 73 y/m and not a 74, dont think thats correct? are they all the same? also have been told that a ser 1 landrover pressure plate is the same and may be a bit less pedal pressure, the flywheel i have is a 6 bolt but i may have to source a 8 bolt, will know when i get it apart, also ordered today a tripple webber setup but will sort the g/box first, thanks for any input..