Clutch ?s

[dragoonranch]

On my 78 350/465, I have an 11 inch clutch, will the 12 inch fit on the same flywheel or would it have to be changed?

Is there much of a difference between these two clutches?

 

[bronc3buster842001]

it should fit i put a 12 inch clutch in my truck that had an 11 incher

 

[73k5blazer]

It'll fit. No problem. Makre sure you get the pressure plate that goes with that clutch though.

 

[MattK]

wouldn't there be issues of the flywheel only being worn in the area that the 11" made contact with?

 

[dragoonranch]

didn't think of that, guess I could get it turnded down

 

[diesel4me]

one thing..

I had no luck getting a 3 finger 12" pressure plate to clear a "full" aluminum bellhousing a few times,it was too big and rubbed on the bellhousing....ended up going with an 11" diaphram style clutch instead..which is plenty beefy enough anyway,especially if its a "centerforce" design..

I never tried using a 12" diaphram style pressure plate with the full aluminum bell housing,it might just fit...I'd definately have the flywheel re-surfaced regardless of what size you put in,its not worth doing the job if you dont do it 100%--it'll come back and bite you in the butt!..

 

[73k5blazer]

Flywheel resurfaced is a given. Always a must.

 

[RootBreaker]

Flywheel resurfaced is a given. Always a must.

not for this redneck...

 

[dragoonranch]

Well, we shall see soon enough, the dual action centerforce 12" hsould be at the shop soon enough.

 

[73k5blazer]

I've put the Centerforce dual friction 12" on my 1973 SM465 350engine.
Fit no problem.

 

[cj7jeep81]

i'm running a 12" luk clutch in mine. i believe the bellhousing is out of a '79.

 

[dragoonranch]

I am switching to a hydro clutch w/ a Novak kit, so we are replacing the clutch while it is apart replacing the fork. this truck was auto, and PO did a half ass job on the swap so the linkage is janky at best. You have to stand on the clutch pedal pretty hard to work it, and on the rocks it wears you out. I appreciate yalls input on all of this.

 

[B_to_C]

janky:


(adjective) inferior quality; held in low social regard; old and delapidated; refers almost exclusively to inanimate material objects, not to people

We tried to pick up on these girls waiting for the bus, but I was driving my sister's janky 1989 geo metro so we just got clowned instead.

Huh...never knew

 

[pvfjr]

Hey now, there's nothing janky about a metro.

Mark down another one for having a 12" clutch. I've got a 12" luk pro gold in my crew cab behind the 454. It's an 84 with the aluminum bell housing, diaphram style fit no problem.

In regards to switching to hydro, did you see that "tech article" that supersize75K5 did? Seems like a good way to go, using cheap off the shelf stuff. Don't even have to drop the tranny (even though you are already).

 

[dragoonranch]

I might have, but will go back and check it out.

 

[MattK]

im also runnin the 12" luk pro gold diaphragm clutch. so far it has been super smooth, no problems.

 

[bronc3buster842001]

i ran a 12'' clutch from autozone in my 78 it fit without a prob