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Old 03-28-2016, 05:22 PM
rmoulderoh rmoulderoh is offline
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Default Down shift bump

The transmission in my 87 GN with 116,000 miles just started making a very loud bump/thump noise when it down shifts to 1st or 2nd gear. Is it time for a rebuild or is a simpler fix possible?
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Old 03-29-2016, 03:47 PM
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kenmosher kenmosher is offline
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Default Re: Down shift bump

It could be bad U joints (a relatively easy fix). With those miles, it's probably time for that anyway.

Be sure to get the non-greasable/permanent U joint replacements (a lot stronger).
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Old 03-29-2016, 04:30 PM
rmoulderoh rmoulderoh is offline
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Default Re: Down shift bump

Thanks, Ken.
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