IDM

Guys I am hearing that there are two different types of pilot bearings to choose from stock?

Is this true and which is preferred?

I have gone with a twin disk ACT clutch for high hp.

Thanks!

joshtownsend

yeah, there is a solid and a needle.. i went thru both .... think i'm going to try the poly on that summit has and see how that works out

IDM

These failed on you before the rest of the clutch?

Is it due to high hp?

sami85L98

Yes solid may be C6 style they are ball bearing (for this you had to get grind off input shaft i eman rounded off, machinists job cant do at home should be true round) instead of needle bearing ours (C5), however centerforce have a solid kevlar material.

Last year i install GM C5 pilot bearing and went bad on me, but this winter i will be re doing my clutch along with CF pilot BUSHING (not bearing), infact already purchased it, hoping it will solve my prblem.

I have a H/C package however will be going AA Si-trim this winter.

IDM

Man it's one decision after another.

I cant have a dumb 10 dollar pilot bearing screwing up this entire operation.

Can you guys help me decide what to buy, in a crunch???

undertaker

haven't had a problem with the GM needle bearing in 700 or 800 rwhp C5's...

BLOWNBLUEZ06

Just get the bearing and be done with it.

bullitt4110

IDM

cool guys thanks!

stevieturbo

Never had an issue with the standard one above

C5kid

I just tore out my kevlar PB. I had a problem after installing it, once the car would heat up, it would drag goin into gears. Like I wasn't pushing the clutch in all the way.

It took me awhile to figure out what was goin on. The poly / kevlar one would clamp down on the tip of the driveshaft after the motor was warm and still keep everything turning.

It may work for you, just wanted to give you a heads up before you start pulling the car apart.

helga203

Do you think the kevlar is expanding?? I tryed one myself(kevlar). When i recieved it before i installed it i checked to see if it would fit on the shaft and it did perfect, but when i installed it it shrunk the dia. I couldn't fit the shaft in any more. Shrunk the dia i couldn't believe it very wierd. I couldn't get a reamer to open the dia. a little so i had to remove which was a bitch and a half. Went with the stock PB so far no problems.

C5kid

yea, i think the kevlar one expands alittle. mine was VERY tight when i test fitted it over the tip.

stevieturbo

Why would anyone use anything different from the standard one ?

2004SpiralGrey

Solid brass pilot

SargeZ06

^^^^ This!

IDM

Is this the factory GM C5 one we are talking about above or different?????

corvettebob1

What their talking about is not solid brass it is sintered bronze and is oil impregnated.
It's been around for way more years then even I can remember, it's main advantage is it can tolerate more misalignment then the needle roller.

IDM

But it's not a stock GM part?? So Im getting two different answers still!

some prefer gm needle bearing and others the brass/bronze

SargeZ06

Yep that's what talking about. One of those those things that worked great but somebody had to fix it even though it wasn't broke.