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Mach 1
Vibration. NEED HELP
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<blockquote data-quote="sideways03" data-source="post: 10599590" data-attributes="member: 56736"><p>I am trying to figure out a problem that has been haunting me for a while now. Here are the details:</p><p></p><p>Symptoms:</p><ul> <li data-xf-list-type="ul">Bad vibration around 80+ (before recent rear end rebuild the vibration came on around 45mph)</li> <li data-xf-list-type="ul">Rotational clunking noise (can't tell if it's from trans or rear end) when NOT under load. When clutch is in it is much more prominent. Clunk is dependent on speed of car. Was there before rear end rebuild also.</li> <li data-xf-list-type="ul">BAD humming noise from 30mph+ ONLY when under load. As soon as I let off the gas it goes completely away. Hum was not nearly as bad before gear install.</li> <li data-xf-list-type="ul">Driveline seems to have excessive slack in it. Was there before rear end rebuild also.</li> </ul><p></p><p>Recent Attempted Fixes:</p><ul> <li data-xf-list-type="ul">Set pinion angle</li> <li data-xf-list-type="ul">Tried 2 driveshafts</li> <li data-xf-list-type="ul">Rebuilt rear end: brand new gears/bearings/housing</li> <li data-xf-list-type="ul">Tried 2 sets of wheels/tires, current setup was just balanced</li> <li data-xf-list-type="ul">Transmission rebuilt</li> </ul><p></p><p>PLEASE SOMEONE HELP. Give me ANY ideas you might have. I want/need to fix this so I can enjoy the car!</p><p></p><p>Only things I can think of now are:</p><ul> <li data-xf-list-type="ul">Bad install on the gears</li> <li data-xf-list-type="ul">Diff was the only thing not replaced, so maybe it is bad (detroit trutrac w/ <10,000 miles) and needs to be replaced as well.</li> <li data-xf-list-type="ul">Some sort of transmission issue?</li> <li data-xf-list-type="ul">Not sure if there is more than one problem here either.</li> </ul><p></p><p>Thank you.</p></blockquote><p></p>
[QUOTE="sideways03, post: 10599590, member: 56736"] I am trying to figure out a problem that has been haunting me for a while now. Here are the details: Symptoms: [LIST] [*]Bad vibration around 80+ (before recent rear end rebuild the vibration came on around 45mph) [*]Rotational clunking noise (can't tell if it's from trans or rear end) when NOT under load. When clutch is in it is much more prominent. Clunk is dependent on speed of car. Was there before rear end rebuild also. [*]BAD humming noise from 30mph+ ONLY when under load. As soon as I let off the gas it goes completely away. Hum was not nearly as bad before gear install. [*]Driveline seems to have excessive slack in it. Was there before rear end rebuild also. [/LIST] Recent Attempted Fixes: [LIST] [*]Set pinion angle [*]Tried 2 driveshafts [*]Rebuilt rear end: brand new gears/bearings/housing [*]Tried 2 sets of wheels/tires, current setup was just balanced [*]Transmission rebuilt [/LIST] PLEASE SOMEONE HELP. Give me ANY ideas you might have. I want/need to fix this so I can enjoy the car! Only things I can think of now are: [LIST] [*]Bad install on the gears [*]Diff was the only thing not replaced, so maybe it is bad (detroit trutrac w/ <10,000 miles) and needs to be replaced as well. [*]Some sort of transmission issue? [*]Not sure if there is more than one problem here either. [/LIST] Thank you. [/QUOTE]
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Vibration. NEED HELP
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