I looked into this a couple of years ago Bill. Yes the clutch head tools and head are simpler than they were originally. The original tool was forged to shape the new tools are cut using two passes with a rotory mill cutter. Much simpler to make the tool so they simpified the broach design also.
I did a little layout of the original design and the simplified one being offered to us now: http://www.pbase.com/dennygraham/image/134156738/large
And the simpified bit here, you can see how easy it is to just take a touch on either side with a bit to make the tool. http://www.pbase.com/dennygraham/image/134157607/large
Denny Graham
Sandwich, IL

Last edited by Denny Graham; 04/24/2011 4:15 AM.

Denny G
Sandwich, IL