I started a post about a month ago about this and finally have the money to buy...

I was wondering if anyone knew the application of the different size clutches. I have figured out that that 1 1/8" input, 10 spline, but there are 10.5" disks, and 11" disks.

Which one is correct for a 69 motor, going to 68 muncie (I love half breed cars, always wondering which year to go by)

I am thinking the RAM clutch is what I will get. But they have what they a call there "muscle car" clutch part number 92760. Or the ram clutch 88760 standard replacement, or the 88760HDX heavier duty kit.

Any opinions on these?

Factory correct would be 10.5
The full size cars(b-bodies) used 11.

ah, the confusion begins.

My car has a 69 b-body 400, mated to the original 68 muncie. Car is a YE coded block, so it was switched to a manual.

I guess I am going to have to take it apart before I go any further huh?

Let your flywheel be your guide. The 10.5 & 11" clutches have two different bolt patterns. There actually is an 11" pressure place made on the 10.5" bolt pattern, but you gotta look for them. Either will work, but make sure you get the proper release bearing to work with the pressure plate diaphram.

I had a heck of a time getting the bell housing off (in the tunnel) around the 11" clutch that was originally in my car. I put back a 10.5 centerforce dual friction. It holds like crazy with a lighter pedal than the 11" Zoom that was in there. The bell housing went back on pretty easy. Hayes flywheels have multiple bolt patterns for multiple size pressure plates.

I went with the CenterForce Dual originally after my engine was done. I can't remember now how many miles I got out of it but I would say around 7k and the thing was toast. Then I bought the cheaper Ram clutch from NPD and it's now been in there for several months a I have no problems at all. Pedal feels better with the Ram clutch and seems to hold up to my 5100 dumps pretty well...

I called around today and found the ram HDX set up for 288.00, but RAM has what they call the "muscle car" clutch for 184.00. Called ram and he said they are almost identical except the HDX is rated for about 450HP, the muscle car set up for 475HP. Dont make much sence, high HP hold power for 100 less. but I am going to go with it. Just need to ensure my flywheel is 10.5" first.

How easy is this to change? Last clutch I did I was 16 (on a 88 firebird no less) with my dad telling me what to do....that was 18 years ago...I am smarter now, but still not as wise.

You are going to have the flywheel resurfaced aren't you? I would highly recommend it if you haven't thought about that point. The machine shop will be able to tell ya what'ca got.

i debated buying a flywheel...prices are a bit scary though. I need one for my motor i am rebuilding so I figured I could buy new and install on my car. then have a extra to resurface and put with the new motor...until the prices scared me.

I just didnt want to buy the wrong one but I guess that is a mute point now that I have seen the prices.

Buy a new flywheel for your new motor, resurface the one you have for now. It will be a lot less expensive than new.