mx5 auto into s3 rx7
 

i have a s3 rx7 auto with a std 12a.
the rx7 auto is on its way out. what mods need to be done to fit a mx5 auto gearbox up to it? and will a mx5 converter be ok or will it be locked up all the time due to rotary output shaft speed being 3 times as fast.
i put a mx5 5spd gearbox into my other rx7 and a manual box need bell housings swaped and the input shaft shortened by 13mm. any help with swaping a auto mx5 box into a rx7 be great.

why not convert the auto 7 to 5spd? never delt with the auto trannys but if they're like all others the case is all one piece so no changing out bell housings. the auto from the miata wont bolt up to the rotary. if u want to keep it auto u'll just have to find another one for the rotary.

A 5 speed conversion will be around the same price and it isnt hard to do. Ive done one on a FB, not hard at all with some common sense.

cant do a 5spd converson as lost use of 1 arm so auto it has to be....

What makes you think the output shaft speed is 3 times as fast?

lockup is controlled electronically

I have a 1985 auto trans with low miles (112,00 miles) I'd sell cheap.

lol hes in new zealand so shipping would cost a but load