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Old 03-25-2012, 08:29 AM
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Pilot bearing input shaft

On 350 Chevy motor do the pilot bearing need to be pressed in or do they just slide in ?all my 350 motor they just slid in they weren't loose just wondering if they need pressed inor if that's ok they just slide in. I have a sm465 manual transmission how or can I tell if the input shaft bearing is bad both the motor and transmission are out of the truck which is a 79 1ton Chevy my trans gears are L123R thanks

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Old 03-25-2012, 09:06 AM
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pilot bearing

put the bearing in the freezer for the nite.. then next morn make sure u'r ready to install... don't handle it, use pliers or something thats not gonna put heat on it.. run to garage and tap it in.. it should go in fairly easy this way..
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Old 03-25-2012, 09:50 AM
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No need to wait all night, drop it in some ice for a few minutes, dry ice works best as its much colder. You may have to gently tap it in.
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Old 03-25-2012, 01:00 PM
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Is that the pilot bearing or the in put shaft bearing ?
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Old 03-25-2012, 09:56 PM
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Quote:
Originally Posted by fatboytruck
Is that the pilot bearing or the in put shaft bearing ?
The method Bill and AP are talking about is the pilot bearing in the crank shaft.

You are also asking about the input shaft bearing on the trans. Is it bad or good. If you put the trans in Neutral and spin the shaft by hand how does it feel? Gritty? Smooth? Its a '79, when was the last time it was rebuilt? Never? I would would says its time. Rebuild kits have new bearings, gaskets, and synchros.
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Old 03-25-2012, 11:25 PM
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Ibought the trans form a junk yard so never lol were how much is a good one and what should all come with it? Yes it's smooth but there it a little play in the shaft 1/8 in play it shifts smoth too
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Old 03-26-2012, 10:19 AM
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A little play is normal in the input shaft. That is why it is supported by the pilot bearing.
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Old 03-26-2012, 10:21 AM
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Ok Thank you
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