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Old 03-26-2012, 11:37 PM
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weird vibrations in 1-4th gear

hey guys i have a 1986 irocz 28 camaro i recent changed it from a 700R4 to a T5 manual everything works fine but i am having rediculously strong vibrations in 1-4th gear at all rpm ranges if you are moving as soon as i put it in 5th it goes away this one has me stumped any ideas?

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Old 03-27-2012, 08:36 AM
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Had a similar problem once with a '69 Mustang fastback a LONG time ago. Changed out the 3 speed stick for a 4 speed and failed to notice the overall length of the trans on the 4 speed was a few inches less than the 3 speed. Although the driveshaft looked like it fit, it actually was too short and the front spines were only seating on the output shaft a couple inches... which wasn't enough. It would vibrate terribly even in high gear but if I kicked the throttle it would go away completely. Point is... this could happen if there was a difference in overall length of the two transmissions AND if the driveshaft was not re-sized to fit correctly. Just a thought.

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Old 03-29-2012, 03:44 AM
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that makes sense but i dont think that is it my drive shaft goes in 3 or 4 inches and the transmissions are the same exact length this one really has me stumped.
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