Automatic transmission swap from 83 to 85 RX7

Tiny
WILLIE BAILEY
  • 1985 MAZDA RX7
  • 4 CYL
  • MANUAL

I am taking the automatic transmission from an 83 Mazda RX7 and putting it in my 85 manual RX7. I am using the rear eccentric shaft counter balance from the 83. Do I have to use the 83 front balance weight? Mazdatrix show the same part # for the 83-85 aft Both cars have 12A engines. I am installing the automatic transmission from the 83 to the 85. The 85 has a manual transmission.

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Saturday, January 14th, 2012 AT 5:42 PM

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Tiny
RIVERMIKERAT
  • MEMBER

From what I know, the aft eccentrics need to be for/from the corresponding type of transmission. The front balance is normally matched to the engine.

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Tuesday, January 17th, 2012 AT 1:16 AM

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