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Pilot bushing.

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Old Feb 27, 2023 | 11:08 PM
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Default Pilot bushing.

Hello, I was recommended a pb656-HD bronze pilot bushing over a regular pilot bearing. A lot of people recommend it, but a lot of other forums for other ls and tremec cars say not to use a bushing because if they go bad it can ruin the transmission.My last

pilot bearing fried so I am doing a clutch job.
I have both the bronze bushing and a new pilot bearing that I could use.
Is it true that a bronze bushing could go bad, vibrate, and destroy my transmission?
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Old Feb 28, 2023 | 07:39 AM
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It won’t destroy your transmission thankfully because it’s in the rear mounted to the differential.

However, I put this same bushing in when I did my
clutch. Fast forward approximately 4k miles after a heads / cam / intake install, I needed to rebuild my motor. On tear down I found this bushing was spinning freely in the crank and I just pulled it out with my finger. I was really surprised. When I rebuilt the motor a GM pilot bearing went back in. Maybe an anomaly - but that was my experience last year. Hope it helps!
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Old Feb 28, 2023 | 08:47 AM
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Typically I have preferred a bushing vs bearing as there are less parts to fail. However, when I did my clutch last year I just put the bearing that came in the clutch kit in the crank. No issues after a year.
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Old Feb 28, 2023 | 10:30 AM
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I've wasted a couple bearings in my Camaro in spectacular fashion, so back in December that very same bushing went in. The logic is that they wear out instead of catastrophically failing. I can't speak to their longevity as this is my first foray with one, but I did squeeze some oil into it until I saw the factory stuff start to weep out to make sure it was "full".
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Old Feb 28, 2023 | 05:13 PM
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For me, if there is no absolute proof one is better than the other, I would stick with oem
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Old Feb 28, 2023 | 05:26 PM
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Originally Posted by hungryhippo
For me, if there is no absolute proof one is better than the other, I would stick with oem
Better is subjective, you choose based on your preferred method of failure.
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Old Feb 28, 2023 | 05:34 PM
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I was always under the impression that in the old school 4 speeds if you didn[t use a pilot bushing/bearing you would get a vibration and wear on the front shaft bearing.in the transmission.
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Old Mar 1, 2023 | 08:30 AM
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There is no lubrication when using a bushing, correct?
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Old Mar 1, 2023 | 08:47 AM
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Originally Posted by frodo84
There is no lubrication when using a bushing, correct?
Uncorrect. The bushing is porous and comes charged with some sort of oil. You're supposed to press more in and observe it leaching out.before install. It's an oilite bushing.
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Old Mar 1, 2023 | 09:41 AM
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friend used this and inside wore out. U know OEM last too 100k miles and been proven over and over. Almost all premature failures with OEM is do to poor installment because people attack it themselves to save money. Lying on the ground with 100 jacks trying to maneuver it in.
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Old Mar 1, 2023 | 10:25 AM
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Originally Posted by 666lisa
Almost all premature failures with OEM is do to poor installment
Care to back this statement up with data? Or are you just here to spread more misinformation?
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Old Mar 1, 2023 | 10:38 AM
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Originally Posted by Supercharged111
Care to back this statement up with data? Or are you just here to spread more misinformation?
Please tell the your kidding right. how many time on here members say they smashed when they had to go back in to replace. Many people are not as perfect as you remember that. But then again its probably impossible to damage a pilot lying on your back working with jack's around you. LOL
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Old Mar 1, 2023 | 10:50 AM
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Originally Posted by 666lisa
Please tell the your kidding right. how many time on here members say they smashed when they had to go back in to replace. Many people are not as perfect as you remember that. But then again its probably impossible to damage a pilot lying on your back working with jack's around you. LOL
I'll admit I was out for a while, maybe I missed a bunch of posts where folks were trying to grape ape the bearings into place, but that thick outer shell is built to take the beating that it takes to get it into place. Not only that, you'll know it's pooched right away, no need to drive it for a week to realize the cage is shattered and those rollers are everywhere. I've done them both ways, on the ground and on the lift, and they're still a pain on the lift. The bearings don't tolerate abuse for 100k miles and when they fail, they fail catastrophically. The bushings WILL wear out as you have observed, but they won't take the TT input with it. It isn't a matter of one is better than the other period, one is better for a given application than the other. I can get around 2-3 seasons from a bearing on my Camaro (exact same bearing/bushing) and I've been fortunate to not wreck an input shaft. I've changed over to bushings on it, we'll see how long those last, I suspect about as long but without a kaboom. Because of the failures I've observed on my Camaro (dedicated race car), I'm not sure which would be better for my Z06 which is more of a fun street car that doesn't have every single shift executed at redline with exuberance.
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Old Mar 1, 2023 | 10:56 AM
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Originally Posted by Supercharged111
I'll admit I was out for a while, maybe I missed a bunch of posts where folks were trying to grape ape the bearings into place, but that thick outer shell is built to take the beating that it takes to get it into place. Not only that, you'll know it's pooched right away, no need to drive it for a week to realize the cage is shattered and those rollers are everywhere. I've done them both ways, on the ground and on the lift, and they're still a pain on the lift. The bearings don't tolerate abuse for 100k miles and when they fail, they fail catastrophically. The bushings WILL wear out as you have observed, but they won't take the TT input with it. It isn't a matter of one is better than the other period, one is better for a given application than the other. I can get around 2-3 seasons from a bearing on my Camaro (exact same bearing/bushing) and I've been fortunate to not wreck an input shaft. I've changed over to bushings on it, we'll see how long those last, I suspect about as long but without a kaboom. Because of the failures I've observed on my Camaro (dedicated race car), I'm not sure which would be better for my Z06 which is more of a fun street car that doesn't have every single shift executed at redline with exuberance.
Im embarrassed to say that it happen to me and a friend but is the bass breaning did wear out for some reason, And ur right on the oulder cars thats all they used and proved themselves. I guess when u get frustrated trying to line up to get the torque tube i n we start pushing around a little to hard . I guess for 2 weeks of drive with a squealing noise i thought it would go away.llolol this is for bearing getting damaged


Last edited by 666lisa; Mar 1, 2023 at 03:44 PM.
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