xrotaryguy

I have a 75 Rx4 sedan and dispite my wanting to keep it all original it is just too boring to keep the way it is with the automatic. I hear that the SA tranny pretty much fits. I think I still have a flywheel from a 76 4 port 13b motor lying around. I'll need a new clutch. I will also need a pedal cluster. Is it all that hard to make an SA pedal cluster fit? Also... was there any difference between the counter weights between 75 and 76. Like I said I would like to use this fly wheel from the 76 so I need to make sure its going to be the same. Any help would be... well... helpfull lol.

Thanks,
Brian

Siraniko

iTrader: (13)

just install the tranny. all pre-83 RX-7 were equipped with 215 mm flywheel. you can also use an 81+ but you will loose the shifter console as they are longer-meaning, you have to enlarge the shifter hole like the pix below

xrotaryguy

my concern with using a rx7 flywheel is that the counterweights will be different. Im pretty sure that the fly sheel off my 76 4 port 13b would be the way to go for my 75 Rx4 right? and yeah my 80 tranny should go pretty good. what pedal cluster did you use? or was your Rx4 alrready a namual? I dont know if i can mut just the pedals on the same shaft that the automatic used or if I need to swap a complete 7 assembly of if I really need to use a Rx4 assembly. Theres a guy with one for sale but if I can get away with the 80 7 setup for the pedals then I will