Volvo M400 transmission
Encyclopedia

M400

M400 is a gearbox from Volvo
Volvo Cars
Volvo Car Corporation, or Volvo Personvagnar AB, is a Swedish automobile manufacturer founded in 1927, in Gothenburg, Sweden. It is owned by Zhejiang Geely Holding Group. Volvo was originally formed as a subsidiary company to the ball bearing maker SKF. When Volvo AB was introduced on the Swedish...

 used in Volvo 164
Volvo 164
The Volvo 164 is a six cylinder sedan unveiled by Volvo Cars at the Paris Motor Show early in October 1968 for the 1969 model year. The company built 146,008 examples before production ended in 1975....

 and in a modified version, a limited number of the early 1970 1800E. A stronger version of the M40
Volvo M40 transmission
M40 is a gearbox from Volvo used in Volvo Duett, Volvo Valp, Volvo Amazon, Volvo 142 and many more. It is a four speed gearbox. It was also available in s a stronger version called M400 and a three speed version called M30....

gearbox designed to withstand the higher power of the B30 engine, It can be identified by the drain plug being on the opposite side to the M40. While never factory equipped with the "long stick" shifter handle, the shifter interchanges, opening up possibilities for swaps. Owners have found that while the bearings' lifespan might be similar to that of the M40, the torque capacity is in the order of double. Ratios are effectively the same (though derived from a different tooth count) as the M40s and followed that transmission's change to a lower (numerically higher) first gear beginning with the 1973 model year.+

M410

When equipped with the electrically operated Laycock de Normanville the gearbox was known as the M410
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