[Fot] TR4-6 front end technical queries

[EDWARD BARNARD]

Group: One of the questions asked and not yet addressed is the spring pan.
When putting the TR6 suspension to a TR3 you need to retain the TR3 spring
pan. The TR3 shock tower protrudes out from the chassis more than the TR6
tower, so the TR3 spring pan has a deeper cut-out on the inboard side. A TR6
spring pan will foul the shock tower on a TR3 chassis.
Anyone need some TR6 spring pans? I have leftovers from doing many suspension
conversions.
Thanks - Ed

--- On Sun, 2/14/10, Bob <rdavis4 at cfl.rr.com> wrote:


From: Bob <rdavis4 at cfl.rr.com>
Subject: Re: [Fot] TR4-6 front end technical queries
To: "Bill Babcock" <billb at bnj.com>
Cc: "'Friends of Triumph' Triumph" <fot at autox.team.net>
Date: Sunday, February 14, 2010, 7:48 AM


Joe,

I am in the middle of installing TR4A/TR6 front suspension on my TR3. Here is
what I am using:

   Upper fulcrum pins are the same.
   Uncle Jack shortened TR4A/TR6 upper control arms.
   Vertical link is TR4A/TR6.
   TR6 ball joint.
   Trunnion is TR4A/TR6.
   Lower control arms are TR4A/TR6.

I also discovered that the nylatron kit (supplied by BFE) that fits the upper
inner TR4A/TR6 control arms also fits the lower TR4A/TR6 inner control arms
and the stainless steel sleeve fits the lower TR3 fulcrum pins. The upper and
lower fulcrum pins measure the same diameter and same length on the TR3.

Bob Davis

Bill Babcock wrote:
> I used the TR3/4 lower arms, but I think they are all the same. I don't
> recall, but if you look at the part numbers in the Moss parts catalog you
can
> put together a kit pretty easily. My upper arms are adjustable heim joints.
I
> don't think Tony changed any of that. The pivot point is moved inward about
an
> inch (I think--I have a good memory, it's just short). All this is written
> down of course, but I'm 3500 miles away from my notes.
> On Feb 13, 2010, at 2:12 PM, Joe Boruch wrote:
>
>   
>> Did you use the TR6 frame brackets for the lower a-arms or do the a-arms
fit
>>     
> on the Tr3's lower fulcrum pins?  Joe
>   
>> ---------- Original Message ----------
>> From: Bill Babcock <billb at bnj.com>
>> To: "Joe Boruch" <jaboruch at netzero.net>
>> Cc: 'Friends of Triumph' Triumph <fot at autox.team.net>
>> Subject: Re: [Fot] TR4-6 front end technical queries
>> Date: Sat, 13 Feb 2010 14:09:39 -1000
>>
>> I didn't care. The bump steer and camber gain of the TR3/4 is so screwed
>>     
> that I knew I would be tweaking everything anyway. Top arm angle is the
least
> of the problems.
>   
>> On Feb 13, 2010, at 2:04 PM, Joe Boruch wrote:
>>
>>     
>>> Bill, how did you get the TR6 stuff to work with the TR3.  When I looked
at
>>>       
> it once, I noted that the TR6 upright is taller than the TR3/4 one.  That
> would change the angle of the top A-arm.  Joe(B)
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