sammy340

Hey guys

Anyone know how long i have to drive this thing with a new CON-O in it before i start actually driving it?

Wannadiesel i know you spoke directly with SBC about this.......could you shed some knowledge

PS.......i got the 12" before you threw your 2 cents in

alborada

A couple of hard launches in third should do it!!

Baja

I just put one in (2ed gen) a few weeks ago. It would chatter pretty hard in reverse and a soft start up from a stop. I pretty much knew that this would settle out, but I called Southbend anyway. "Give it a few hundred miles and learn to drive it harder than your old one", I was told. It has been a few now and the chatter is much less, but I have to be more aggressive with it from a standing start. It will take time and although a bit rough now, I think it will smooth out later. Hope this helps.

Hayseed

What was Wanna's 2 cents??? I missed it somewhere.

wannadiesel

My 2 cents is "No 12" clutch is an upgrade."

You will break the center out of that clutch before you slip it with the power you have now. The best advice I can give you is to be gentle with the power - roll into it and roll out of it. Don't drop the clutch when shifting, and don't downshift to slow the truck in normal circumstances. And definitely don't try to tow or pull with it.

SBC clutch break-in:

You're supposed to drive it for about 300 - 500 miles of local/city driving (a 500 mile road trip doesn't count) before asking it to hold full power in 4th or 5th.

Both my SBC clutches were very smooth initially but got grabbier after they broke in.

bgilbert

My 2 cents, why would you put in a 12" clutch??? Are you selling the truck and putting it back to stock? Even stock I would be scared of it.

TheBigNasty

My truck with a stock replacement LUK has handled several clutch dumps and even more hard shifts. It slips real bad now but never ripped out the center, why would Peter's be any less reliable?

1stGen545

If you want a grabby clutch you should have driven my 92 with the duel diaphragm Sacks pressure plate and 6 puck ceramic clutch. Also had twice the pedal pressure, not fun for dally driving but I did it for almost 2 years. It was impossible to slip even in my friends 67 Jeep M715 1 1/4 ton weapons carrier with 400+HP P-pump 12 valve, 4" snorkel & 5" exhaust that I made, Clark 5 speed, 205, 3.54, Dana 70 front with our own F450 disk brake setup, Dana 80 rear and 38" Micilan XML's, and covered inside and out with Rhino Liner. He did twist off a 1.25 input so we upgraded to a 1.50.