GN and T-Type Performance Enthusiasts (GNTTYPE) Forums GN and T-Type Performance Enthusiasts (GNTTYPE) Forums
This is a general site search and does not include list archives.

Go Back   GN and T-Type Performance Enthusiasts (GNTTYPE) Forums > Technical Topics > Transmission / Torque Converter Tech

Reply
 
Thread Tools Display Modes
  #1  
Old 03-28-2016, 05:22 PM
rmoulderoh rmoulderoh is offline
Member
 
Join Date: Oct 2005
Location: OH
Posts: 33
rmoulderoh is on a distinguished road
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?
Reply With Quote
  #2  
Old 03-29-2016, 03:47 PM
kenmosher's Avatar
kenmosher kenmosher is offline
Whoosh
 
Join Date: Aug 2004
Location: CO
Posts: 3,984
kenmosher is on a distinguished road
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).
__________________
Ken Mosher
1987 GN original owner 650+ HP Black
2015 BMW 328xi XDrive wagon
2012 Volkswagen Tiguan (the Tig!) Night Blue Met (sold)
2006 Trailblazer SS Red Jewel Tint 395 HP AWD (sold)
2014 Silverado LTZ Crew 4WD
2012 Honda VFR 1200F Tahitian Blue (sold)
2015 BMW S1000R Racing Red
2013 Honda CBR500R Red (wife's bike)
2014 Triumph Bonneville T100
2003 Harley Davidson V Rod Anniversary Edition
Reply With Quote
  #3  
Old 03-29-2016, 04:30 PM
rmoulderoh rmoulderoh is offline
Member
 
Join Date: Oct 2005
Location: OH
Posts: 33
rmoulderoh is on a distinguished road
Default Re: Down shift bump

Thanks, Ken.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 09:18 AM.


This page maintained by: gnttype-webmaster@gnttype.org

The content, images, text and multimedia displayed and contributed by the members of the Grand National and T-Type Performance Enthusiasts Organization are Copyright ©1996-2005. No part, section, image, article or whole of this site may be reposted or redisplayed without permission of the author/contributor and/or the Grand National and T-Type Performance Enthusiasts Organization.

Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.