1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

85 12a to 80 tranny question need answer

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Old 01-17-08, 05:04 PM
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85 12a to 80 tranny question need answer

iam 99% sure iam buying a 12a off a member, but i have a question.

the motor is a rebuilt 12a from a 85 it has a center force clutch,my car is a 1980 sa can i just bolt it to my tranny or iam i going to run in to problems. iam getting a good deal on the cost of the motor. i know to use different flywheels ect i need the right counter weights which would drive the cost up of me putting the motor in my car.


i feel dumb asking and i know iam going to get flamed ect but id rather be safe then sorry.
Old 01-17-08, 05:05 PM
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yes!
Old 01-17-08, 05:09 PM
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wacky is correct, the 79-85 12A will bolt up to any 79-85 12A trans as well as the 84-85 13B trans.
Old 01-17-08, 05:15 PM
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You knucklehead :-)

Look what I found when I searched with the phrases, transmission interchange.:-)

Transmission interchange information needed.
https://www.rx7club.com/showthread.p...on+interchange
Old 01-17-08, 05:30 PM
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sorry doc, i know i ask some dumb question but i wasnt fully sure. but as i say all the time id rather ask some thing dumb then make a dumb mistake.

i tried to search but was having trouble wording it cause iam not swapng out my tranny ect. swap one year 12a for another. i went to centerforce.com and they listed there setups for 1979 - 1982 and 1983 - 1985.

i then went to Mazdatrix and read there info on fly wheels ect and the different size fly wheels info made me question ect.
Old 01-17-08, 09:01 PM
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Hey "Warwickben," where did u get the headlights??

My SA motor fit in my FB just fine!! Post pics of the transfer, I'd love to see 'em!!
Old 01-18-08, 02:23 AM
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Originally Posted by warwickben
sorry doc, i know i ask some dumb question but i wasnt fully sure. but as i say all the time id rather ask some thing dumb then make a dumb mistake.

i tried to search but was having trouble wording it cause iam not swapng out my tranny ect. swap one year 12a for another. i went to centerforce.com and they listed there setups for 1979 - 1982 and 1983 - 1985.

i then went to Mazdatrix and read there info on fly wheels ect and the different size fly wheels info made me question ect.

Wasn't a dumb question, just one that has been covered a lot.
The rule on thumb on flywheel/clutches is also mate it to the engine that you are putting in, not the transmission unless you are bolting up a TII transmission.
Old 01-18-08, 02:33 AM
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Originally Posted by 2fast2rotar
Hey "Warwickben," where did u get the headlights??

My SA motor fit in my FB just fine!! Post pics of the transfer, I'd love to see 'em!!
those look like those euro ones off of ebay?
they look pretty nice.
Old 01-18-08, 05:17 AM
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there the dirt cheap ones, lol. with the crappy blue led halo ring you only see at night with the bulbs off. i got them so i could just replace the bulb and so i could get brighter lights with out going hid. the bulbs say off road use only but there not to to bright. the reason i need brighter lights is for when i go to my buddys place in nh all dirt roads ive all most hit a bear last weekend.
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