[TR] TR6 Rear End Clunk

Bob Danielson 75tr6 at tr6.danielsonfamily.org
Mon May 23 16:25:59 MDT 2011


Most likely a cracked diff mount which is very common. Normally the right 
front one is the first to go. When mine went, my wife said it felt as if the 
noise was right under her seat. Usually an experienced welder can fix them 
with out too much trouble. About half way down this page 
(http://tr6.danielsonfamily.org/DiffMounts.htm) you'll see the cracks in 
mine that caused the clunk........and I only found these after doing some 
serious work with a wire brush i.e. they don't have to be big obvious cracks 
to make noise. I ended up boxing in the front and rear to eliminate any 
future problems. The axle splines can also make a "similar" noise.

There are far better reasons then a broken diff mount or noisy axle splines 
to run away from a TR6. I'd focus on frame rust, TA attachment points, 
tee-shirt area and body rust.

Bob


Bob Danielson
http://tr6.danielsonfamily.org
1975 TR6 with:
Throttle Body Injection
Toyota 5 Speed
Nissan Diff & CVJs


-----Original Message----- 
From: Keith Stewart
Sent: Monday, May 23, 2011 5:49 PM
To: triumphs at autox.team.net
Subject: [TR] TR6 Rear End Clunk

A little help from TR6 owners please. I have a TR3 and a TR4 but lately have 
been looking to purchase a TR6. I recently looked at one quite a distance 
from where I live but have a concern about a clunk in the rear. When both I 
and the owner drove it, there was a mild clunk coming from the rear when 
engaging the clutch from a standstill and when I drove it, sometimes when 
shifting gears just before engaging the next gear. It seemed similar to what 
I have experienced when one of my cars needed a new universal joint. The 
owner indicated that he understood from other TR6 owners that "...that was 
the way TR6s were". He tells me the universal joints and the differential 
mounts were replaced . From what I have read, this might relate to worn diff 
mounts that lead to cracks in the frame where they mount. Since the diff 
mounts were replaced, it shouldn't be worn diff joints. What is the wisdom 
of the list relative to this rear-end clunk?

Keith R. Stewart
75 Camden Road
London, Ontario
N5X 2K2
Home: (519) 660-1916
E-Mail: keithstewart at execulink.com



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