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Worth a try to complain. The answer will always be no if you don't at least ask.

That was GM's solution... That is a weird spot to Crack. Has to be a defect in the casting that took a while to fully develope. The valve train was completely stock, only exception would be the .010 head gaskets and that may have lessened the open valve spring pressures. Your luck is mud like.

6.6 should fix that... I'm a dead man! ;-)

Where is them there spark plugs?

YES Pictures too! :nopics: HELL YEAH! Sorry been dying to use that one.

Clutch showed up today, nothing special, not even a painted pressure plate! Looks similar to the the Luk but has MADE IN CHINA on the clutch disc. What the hell!!!

It's not stock!:hihi: Has neato stereo now!

Change your sig! What do you think about the HD radio? I would buy one but we don't have any channels here in BFE.:nonod:

Seen power strokes with tuners on them eat clutch after clutch and the only thing that would hold up was the south bend kit with the kevlar pilot bushing. This experience comes from the ZF 6 speed, but I still feel it is valid. If the truck is stock I thing the Luk kit would hold up just...

Well this is a documented case of a busticated Luk clutch with a transmission vibration dampener. I called Josh (chevycowboy) and we were talking about he dampener and he said if you look in the back of the trans you cant see anything if there is one installed. I was like......well I cant...

In all reality if the next clutch lasts 55k this pickup will be down the road to another owner. It is slowly going from second string to third. Good heavy duty pickup, makes a good backup or something for me to borrow when I need to pull something the Denali isn't cut out for.

Thanks for the input. How many miles/years of service did the clutch give you & why did it need a replacement.

The luk disc. Now you have peaked my interest in the SB with talk about (dampers/dampners/dampeners). I am beating this to death because I feel the 6.5 disc is weak due to the swiss cheese design with all the spring pockets.

I have determined that I live in the Bermuda triangle of shipping. No, UPS hates me..............ok I live in BFE. No clutch yet!!! Gonna push the 6.5 out in the cold so I can install some gauges in the denali. Already had the Air Fuel Ratio Gauge. Hope it looks good in the...

It most differently pertains to this. Why does the 6.2 SMF clutch disc on have 5 pockets with 10 springs total and the 6.5 SMF clutch has 10 pockets with 20 springs? I know this statement is headed out to left field but............................what would happen to my drive train if I had...

I was thinking along these lines also. I would rather spend the money on a FD then the trans dampner. Side note. I built this engine (has 55k on it too!) and had the rotating assembly balanced (both balancers, flywheel, clutch disc & pressure plate and new injectors from a member on DP...

They fail with the dampner installed too. The 6.2 used the same flywheel/transmission and as far as I know didn't have this dampner. Is it for driver comfort or drive line durability? I asked the Zoom tech if their clutch could hold a 6.2 NV4500 with banks kit. He said their clutch is over...

Why do you feel it is necessary? Some say you need it and some say nope. This clutch went 55K with out one and has been pulled it's whole life.

Called South Bend today. 415.00 for the stock replacement kit, 605.00 for the performance kit good for 375HP. These prices are for just the clutch kit with no flywheel. I keep wondering how the Centerforce DF would feel and perform, but for a 100 Benjamins less I had to take a look at the...

I wanted a South Bend...................was quoted 715.00 & 900.00 Kevlar from a local dealer, I'm thinking they quoted me a complete SMF kit. Zoom should be here tomorrow, will post some pics when it gets here. I was thinking about a DF Centerforce.