I've owned a 82 5.0 motor that had the uneven holes.

 

heh, which exactly don't you know? About the bolt pattern or the dowels? or both? =)

 

If I understand your question correctly, there is an alignment tool that you use to center the clutch during re-assembly. I just did this twice recently, and without the tool it's a real pain to line up those splines. If that's not what you were referring to I apologize in advance /forums/images/icons/smile.gif

 

No, sorry. I am refering to the 3 dowels which press fit into the face of the flywheel to which the clutch mounts. They are at the diameter as the bolt holes (+/-) for the pressure plate. I don't think they are used on the older 302's but I want to know 100%.

 

On the flywheel that I have for my fastback, there are no dowels. The pressure plate just bolts to the flywheel with six bolts.

 

Thank you much! For your 66gt350? Is the bolt pattern "un-equal" (3 pairs of 2)?

 

Ahhh.......durrrrrrr!!!

I was just waking up from a nap that would make the dead sue me for copyright infringement /forums/images/icons/smile.gif

 

There are three pairs of two bolts. Each pair of two bolts is the same distance from the other pair of 2 bolts. The pressure plate can be bolted up in one of three ways. Does that make sense or do I need another beer to clear my head? /forums/images/icons/smile.gif

 

I agree with 66gt350. I just looked at a 1965 289 flywheel in the basement and it has 3 pairs of clutch bolts, all 3 pairs are evenly spaced around the flywheel, so the pressure plate could mount in three different rotated positions. Also around the same approximate radius of the clutch bolt holes are 12 additional holes, spaced around the flywheel, that go all the way through the flywheel; but these holes are not threaded. There are no dowel pins. The flywheel on the Fastback's 342" is a late model unit that has the dowel pins. This was a 50 oz flywheel rebalanced to 28 oz.

 

Sometime in the mid 70's during the mustang II era the dowels were introduced. Pity the poor mustnag II 302 owners, as clutch is obsolete. The 3 x 2 pattern started in the late 50's and ended during the mid 70s with the dowel/diaphragm clutch introduction.

Hope this sheds some light.
Good luck

 

Thank you much everyone. I am new to this forum and I see it rocks!!