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View Full Version : What does 4R70W and M5R2 stand for?



blkthndr
10-28-2002, 07:05 PM
In 4R70W the 4 means “four gears”, R means “rear wheel drive”, 70 is a
reference figure for torque handling ability, but has no hard numbers attached to
it, and W means “wide ratio”.

In M5R2 the M means “Mazda”, 5 means “5 gears”, R means “rear wheel
drive” and 2 is rumored to stand for “Second Revision”.