Which centerforce is the rite one?

[swinger340]

Have a 69 340 4 speed Swinger. 23 spline 10.5 flywheel. Was on Summit and both DF269739 and DF269675 are 23 spline with a 10.4 dual friction disc. Is there a difference between the two? They look the same to me. Not sure witch one to get.

 

[rklein383]

I called Centerforce (many months ago) to see what the difference was between the 769 and the 675 version. The 675 version sold on Amazon is designed for lower HP applications that you would typically see with a 318.
Rod