[Fot] TR6 Trailing Arms

[EDWARD BARNARD]

Bob:
The downward motion is controlled by a bump stop mounted on the chassis
that contacts the shock lever. It is a different p/n than the bump stop that
mounts on the trailing arm.
Both take a huge beating and I find most are torn
or missing completely.
-Ed-
 

________________________________
 From: Bob
Kramer <rkramer3 at austin.rr.com>
To: Allen Washatko <awashatko at wi.rr.com> 
Cc:
Friends of Triumph <fot at autox.team.net> 
Sent: Monday, February 10, 2014 6:09
AM
Subject: Re: [Fot] TR6 Trailing Arms
  

I've never found an aluminum
spacer on a stock TR6 spring,  and the rebound
rubber is mounted to the
trailing arm on a TR6, to the body on a TR4A. I 'm
trying to visualize
something on the frame but I can't.

Sent from my iPhone

> On Feb 9, 2014, at
10:38 PM, Allen Washatko <awashatko at wi.rr.com> wrote:
>
> Robert,
>
> After a
little more checking, I agree with you that the casting didn't
> change.
> The
factory changed the following parts to correct the problem of rear
> end
"squatting" under acceleration:
>
> 1. Added the "3 notch" trailing inner arm
bracket
> 2. Added the "1 notch" outer trailing arm bracket
> 3. Stiffer coil
springs
> 4. Rebound rubber assembly mounted on frame
> 5. Aluminum spacer for
rear spring as a cure for rear wheel camber
> issues
>
> Best,
>
> Allen
>
>>
On Feb 9, 2014, at 10:05 AM, Robert M. Lang wrote:
>>
>> Hi,
>>
>> Near as I
can recall, the "fix" was the 3-notch trailing arm pivot
>> bracket. There
_may_ have been a slightly different spring avaiable
>> for later cars, but
cannot recall for sure. I've had 69, 72, 73 and
>> 74 TR6s and I don't recall
any differences in the trailing arms. I'm
>> pretty sure the 69 springs were
softer.  But the bracket is the only
>> hardware change that I recall.
>>
>>
Turns out the foundry where the trailing arms were cast would mark
>> the dat
of manufacture (month and year), so if you really wanted to
>> dig here, all
you need to do is get your hands on a really early T/A
>> and a really late
one and measure.
>>
>> But to be honest, I don't think the T/A casting changed
over time.
>>
>> Regards,
>> rml
>>
---------------------------------------------------------------------------
>>
Bob Lang              Triumph TR6!!            |  This space for rent
>>
Former NER Solo Chair                          |
>> Voice:617-253-7438       
                     |  Cell: 339-927-4489
>>
---------------------------------------------------------------------------
>
> Allen & Jody Washatko
> 1971 TR6  - Number 6
>
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