Are the clutch's from the early RX 7's the same as the ones used in the Rotary pickup's? I apololgize since this is RX 7 forums but I am looking to replace the clutch in a 1977 REPU with the 5 speed transmission and have found that the truck has the 8 7/8" disk. Everything I have found at the local auto parts stores for the 1977 Rotary truck appear to be the smaller disc clutch's with no reference to the 8 7/8". Did the early RX7's use the bigger clutch set? If anybody can help me out I would greatly appreciate it.


Thanks,
JD

 

Nobody know's if the clutch's are the same?

 

Or will fit the 1977 13b 5speed REPU?

 

I found this,I don't know if it helps.
Maybe see if Bumpstart( the poster) has any knowledge of the Repu.
Also check the Old school and other Rotary section.

Originally Posted by bumpstart View Post

NA clutch is 225 mm ( 9.0 incher )
and 22 splines
the pressure plate is mounted from lug blocks situated around the flywheel circumference

the turbo clutch is 240 mm , 9.5 incher
( actually 235mm for s5 and 245 mm for s4, but they interchange )
and is 23 splines
the pressure plate is mounted to a flat faced flywheel
( actually the inner friction face is a few mm higher than the bolting face )

prior to 1983 ( in most markets, HB cosmo has the 225mm clutch in 1981 )
all rx's used a 215mm ( 8.5 incher ) with same 22 splines as the NA
and the friction face is stepped about 5-10 mm lower than the bolting flange face

 

Yes that does help some. The N/A, first one listed, sounds just like the one I have pulled from this truck. What worries me is that the bolt pattern will not be the same on the flywheel's of the RX7 and the truck. Otherwise I would just go ahead and buy the clutch kit for the RX7.