Miata Ring And Pinion Swap

The 94 miata uses the same length pinion as the 1st gen rx 7 and b2000 2000 trucks rwd626 and the front housing is unique to the miata to allow a mount for the ppf.

Miata ring and pinion swap.

The unit in the miata is designed to about 2 5 or a little more. Ring pinion sets select a vehicle to see parts for your car please select a year please select a make please select a model please select a submodel. The 1994 and 1995 miata have a type i torsen which is the traditional worm gear unit. The exception being the turbocharged mazdaspeed miata delivered in the us and the turbocharged se mx 5 in australia which received the same diameter axles and differential centre.

The mazda 4 444 ratio ring and pinion set m054 27 110a is suitable use on the following rotary and miata applications. I do not have the exact number as it is actually verified through testing on the completed assembly. Now move the ring gear back and forth with your hand remember the pinion shaft must be locked and measure the movement of the ring gear with the dial indicator. I used a c clamp and my work bench.

While the rear housing is different and the axles are larger the ring and pinion gears are the same and can be directly swapped. Lock the pinion shaft. This device can be manufactured with a torque bias between about 2 5 and 5 0. Swapping the later 94 rear into a 1990 93 miata is a bolt in but requires replacing the entire diff housings assembly driveshaft and half shafts from the later 1994 cars.