GN and T-Type Performance Enthusiasts (GNTTYPE) Forums

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-   Transmission / Torque Converter Tech (http://gnttype.org/forums/forumdisplay.php?f=6)
-   -   Down shift bump (http://gnttype.org/forums/showthread.php?t=16926)

rmoulderoh 03-28-2016 06:22 PM

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?

kenmosher 03-29-2016 04:47 PM

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).

rmoulderoh 03-29-2016 05:30 PM

Re: Down shift bump
 
Thanks, Ken.


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