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Old 08-06-2004, 06:42 PM
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shifting problem

I was hoping you guys could help me. I have an 87 firebird that i put a chevy 350 into. I am using the stock t-5 with a centerforce dual friction clutch. it is also a stock slave cylinder. I am having a problem shifting at high rpm. When i go to shift it does one of three things. It either will not come out of gear, It just won't go into gear quickly. or if i try to shift real fast it just grinds. Also sometimes it won't go in to gear for about five seconds after i take it out of gear. if I am stopped in 1st and rev past 5,000 the clutch starts to grab and my car moves forward. I know my synchro's aren't the greatest but I'm more worried about do I need a new clutch or slave. Or could there be air in the line. I have heard bad things about centerforce but i am not sure if that is the problem. any input would be helpful thanx.

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Old 08-06-2004, 06:48 PM
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sounds like your clutch is slipping
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Old 08-06-2004, 07:59 PM
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Sounds like the clutch is not completely disengaged.
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Old 08-08-2004, 03:47 PM
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I know the clutch is not disengaging, I am not sure why though. Is the Master weak or the slave weak?
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Old 08-08-2004, 07:30 PM
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Did you check that the disk slides smoothly on the input shaft splines? If the splines are worn the disk hub can hang up in the worn areas. Did you surface the flywheel? If they have to grind very much you need to shim the flywheel on these newer cars and trucks.
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