[TR] TR6 rear shock mount break

[Greg Lemon]

I have the tube shock conversion, I have been autocrossing my Triumph since
I finished restoring it about 15 years ago.  So far so good, I have a lift
so can check things out pretty easily.

I had a good set of lever shocks, but sold them on eBay several years ago,
thinking I would never go back.   I put a couple extra washers on the
bumper stop (in the can't hurt might help department) as I understand it
may be at the limit of travel for the shock that the mount gets stressed.

Greg Lemon

On Thu, Oct 9, 2025, 7:29 PM David P <frogeye at porterscustom.com> wrote:

> Dang, now I have to check mine for cracks..
> On 10/9/2025 2:29 PM, brserv at aol.com wrote:
>
> I just had my TR3A rear shocks rebuilt by Worldwide Auto Parts of Madison,
> Wisconsin, and they did a great job on the shocks. You can specify if you
> want the original dampening, or several levels of higher dampening. Plus,
> they always machine the opening for the shock lever shaft, and then install
> a lip seal that will keep the shocks from leaking. I sent them my shocks
> and it took two weeks to get them back. I think that I paid $130 per shock.
>
> AlexL
>
>
>
> In a message dated 10/9/2025 2:30:42 PM Eastern Daylight Time,
> gene at garrison-grafixx.com writes:
>
>
> Ouch!
>
> Tim, I don't have an answer for your welding question, but I want to
> recommend what I (eventually) did.
>
> Back in the 80s, I had a problem with my 6 that I tracked down to the rear
> shocks not "shocking".  I put on a similar adapter, and was fortunate to
> never see any cracks.  But it always worried me.  Then, a few years back, I
> started hearing about an outfit that would rebuild the lever shocks (Apple
> Hydraulics?  Could look it up when I get home.)  And I figured I'd give it
> a try.  And I'm very, very happy with the results.
>
> Just a thought for when you get to that point.
>
> - GeneG
>
> On Wed, Oct 8, 2025, at 3:37 PM, Tim Gaines wrote:
>
> I have been hearing a slapping sound either under or behind me in the 1974
> TR6 when I encounter even slightly rough pavement, so today I decided to
> sort it out. I thought I had found the problem quickly when I saw that the
> spare tire securing hook bolt had come loose, but no such luck. When I
> finally gave up on simple fixes and jacked up the left rear end and removed
> the tire, I saw that the cross member had cracked near where the after
> market shock mount adaptor bolts on. I did a quick check with the Moss
> parts catalog and that cross member is not available with them. So, I'm
> wondering if this shock mount replacement for the old lever shock (I
> installed a couple of decades ago) was a bad idea and put too much pressure
> on that frame member. It occurs to me that there may be some folks out
> there who have gone through this and can tell me just how a fix should be
> attempted.
>
> That crack shown in the photo seems to be only on the back side of the
> cross member. I have learned some welding skills in the last few years, and
> I have a mig welder, but I have never done anything under a car. I really
> don't like the proximity of the gas tank either. I am thinking that my
> local pro welder would be the guy to call on, but is this really something
> that can be fixed that way?
>
>
>
>
>
>
>
>
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> *Attachments:*
>
>    - TR6 broken support.JPG
>
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