Transmissions and Drivetrain Need help with your trans? Problems with your axle?

bad knock in reverse

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Old Aug 7, 2006 | 06:53 PM
  #1  
david068513's Avatar
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From: Ganiesville GA
Car: 1992 z28/1992 RS heritage edition
Engine: 350 tpi, 305 tbi
Transmission: 700R4,T5
Axle/Gears: G92
bad knock in reverse

ok people this is my problem i have a 1992 z28 and every time you put it in reverse it does a bad knock then its fine, it only knocks when you first put it in gear it just started happening today. any ideas what the problem is?
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Old Aug 7, 2006 | 07:03 PM
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Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Does it knock when you put it in drive from reverse? Could be something like a transmission mount, torque arm bushing, U-joint...
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Old Aug 7, 2006 | 07:06 PM
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david068513's Avatar
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From: Ganiesville GA
Car: 1992 z28/1992 RS heritage edition
Engine: 350 tpi, 305 tbi
Transmission: 700R4,T5
Axle/Gears: G92
no thats the werid thing it only knocks when you put in the reverse gear never anything else only when you put in reverse if you put in drive it doesnt do a thing....
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Old Aug 7, 2006 | 07:14 PM
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Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Can you jack it up to look underneath while someone sits inside and puts it in gear?
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Old Aug 7, 2006 | 07:15 PM
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david068513's Avatar
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From: Ganiesville GA
Car: 1992 z28/1992 RS heritage edition
Engine: 350 tpi, 305 tbi
Transmission: 700R4,T5
Axle/Gears: G92
no not really.......
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Old Aug 7, 2006 | 07:21 PM
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david068513's Avatar
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From: Ganiesville GA
Car: 1992 z28/1992 RS heritage edition
Engine: 350 tpi, 305 tbi
Transmission: 700R4,T5
Axle/Gears: G92
what were you thinking with the jacking up the car
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Old Aug 7, 2006 | 07:25 PM
  #7  
Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
You could see if any parts lurched when it was put into reverse, which would point the problem. If everything's tight, it might be an internal transmission problem.
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Old Aug 7, 2006 | 07:27 PM
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david068513's Avatar
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From: Ganiesville GA
Car: 1992 z28/1992 RS heritage edition
Engine: 350 tpi, 305 tbi
Transmission: 700R4,T5
Axle/Gears: G92
ok thank you for the info i will try to figure it out
----------
does anyone know what this problem might be?

Last edited by david068513; Aug 7, 2006 at 07:31 PM. Reason: Automerged Doublepost
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