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Thanks Brian. I think I will try to go this route. I don't suppose you
have any photos of your setup do you?
Tim
------ Original Message ------
>From "Brian Kemp" <bk13@earthlink.net>
To "Tim Gaines" <mtgaines@presby.edu>; "Triumphs"
<triumphs@autox.team.net>
Date 10/8/2025 6:05:09 PM
Subject Re: [TR] TR6 rear shock mount break
>I too had frame cracks from the tube shock brackets I installed. I had
>a local welder come out and weld up the cracks and add differential
>reinforcement brackets. I had done minor welding, but didn't have a
>welder or adequate power in my apartment garage. It was well worth
>paying someone to weld in an overhead location. I was nearby with a
>good fire extinguisher and a garden hose as I to was concerned about
>the welding near the gas can.
>
>
>
>To prevent the problem in the future I added diagonal braces down to
>the frame behind the shock brackets and a cross brace between the two
>shock brackets.
>
>
>
>For anyone installing the tube shock conversion brackets that just bolt
>to with the original lever shock bolts, test the range of motion
>without the spring installed. The trailing arm goes through an angular
>motion that puts a sideways force on the frame cross member that it
>wasn't designed for.
>
>
>
>I remade the brackets to move the top of the shock about 1.5 inches for
>a better range of motion. If I were to go back in time, I would just
>have the heavy duty rebuild of the original lever shocks.
>
>
>
>Brian
>
>
>
>-----Original Message-----
>From: Stan Foster <stan@redtr6.com>
>Sent: Oct 8, 2025 2:40 PM
>To: Tim Gaines <mtgaines@presby.edu>, Triumphs
><triumphs@autox.team.net>
>Subject: Re: [TR] TR6 rear shock mount break
>
>
>
>I had those brackets and the stress caused the cross ember to be torn
>off the frame. I fitted the cross member from RATCO and switched back
>to lever arm schocks.
>
>
>
>Stan
>
>
>
>From: Triumphs <triumphs-bounces@autox.team.net> On Behalf Of Tim
>Gaines
>Sent: Wednesday, October 8, 2025 4:37 PM
>To: Triumphs <triumphs@autox.team.net>
>Subject: [TR] TR6 rear shock mount break
>
>
>
>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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>Virus-free.www.avast.com
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>
>
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<html><head><style id=3D"css_styles" type=3D"text/css"><!--blockquote.cite=
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--></style></head><body><div>Thanks Brian. I think I will try to go this ro=
ute. I don't suppose you have any photos of your setup do you?</div><div><b=
r /></div><div>Tim</div>
<div><br /></div>
<div>
<div>------ Original Message ------</div>
<div>From "Brian Kemp" <<a href=3D"mailto:bk13@earthlink.net";>bk13@earth=
link.net</a>></div>
<div>To "Tim Gaines" <<a href=3D"mailto:mtgaines@presby.edu";>mtgaines@pr=
esby.edu</a>>; "Triumphs" <<a href=3D"mailto:triumphs@autox.team.net"=
>triumphs@autox.team.net</a>></div>
<div>Date 10/8/2025 6:05:09 PM</div>
<div>Subject Re: [TR] TR6 rear shock mount break</div></div><div x-em-quote=
=3D""><br /></div>
<div id=3D"x4ad8f9282c2e4ea"><blockquote cite=3D"5f59adc0-4967-af6d-d6e7-ef=
f95184379a@earthlink.net" type=3D"cite" class=3D"cite2">
<div style=3D"color:rgb(0, 0, 0);font-family:arial,sans-serif;font-size:12p=
t"><p style=3D"margin: 0.1rem 0; line-height: 1.0;">I too had frame cracks=
from the tube shock brackets I installed.=C2=A0 I had a local welder come o=
ut and weld up the cracks and add differential reinforcement brackets.=C2=
=A0 I had done minor welding, but didn't have a welder or adequate power in =
my apartment garage.=C2=A0 It was well worth paying someone to weld in an=
overhead location.=C2=A0 I was nearby with a good fire extinguisher and a g=
arden hose as I to was concerned about the welding near the gas can.</p>
<p style=3D"margin: 0.1rem 0; line-height: 1.0;">=C2=A0</p>
<p style=3D"margin: 0.1rem 0; line-height: 1.0;">To prevent the problem in=
the future I added diagonal braces down to the frame behind the shock brack=
ets and a cross brace between the two shock brackets.</p>
<p style=3D"margin: 0.1rem 0; line-height: 1.0;">=C2=A0</p>
<p style=3D"margin: 0.1rem 0; line-height: 1.0;">For anyone installing the=
tube shock conversion brackets that just bolt to with the original lever sh=
ock bolts, test the range of motion without the spring installed.=C2=A0 The =
trailing arm goes through an angular motion that puts a sideways force on=
the frame cross member that it wasn't designed for.=C2=A0=C2=A0</p>
<p style=3D"margin: 0.1rem 0; line-height: 1.0;">=C2=A0</p>
<p style=3D"margin: 0.1rem 0; line-height: 1.0;">I remade the brackets to m=
ove the top of the shock about 1.5 inches for a better range of motion.=C2=
=A0 If I were to go back in time, I would just have the heavy duty rebuild=
of the original lever shocks.</p>
<p style=3D"margin: 0.1rem 0; line-height: 1.0;">=C2=A0</p>
<p style=3D"margin: 0.1rem 0; line-height: 1.0;">Brian=C2=A0</p>
<p style=3D"margin: 0.1rem 0; line-height: 1.0;">=C2=A0</p>
</div>
<div class=3D"elnk-inline-message-container" style=3D"border-left: 1px soli=
d #aaa; box-sizing: border-box; padding: 10px 0 10px 15px; margin: 0;">
<p>-----Original Message-----<br />From: Stan Foster <stan@redtr6.com>=
;<br />Sent: Oct 8, 2025 2:40 PM<br />To: Tim Gaines <mtgaines@presby.ed=
u>, Triumphs <triumphs@autox.team.net><br />Subject: Re: [TR] TR6=
rear shock mount break</p>
<p style=3D"margin: 0.1rem 0; line-height: 1.0;">=C2=A0</p>
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size: 11.0pt;">I had those brack=
ets and the stress caused the cross ember to be torn off the frame. I fitte=
d the cross member from RATCO and switched back to lever arm schocks.</span=
></p>
<p class=3D"MsoNormal"><span style=3D"font-size: 11.0pt;">=C2=A0</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size: 11.0pt;">Stan</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size: 11.0pt;">=C2=A0</span></p>
<div>
<div style=3D"border: none; border-top: solid #E1E1E1 1.0pt; padding: 3.0pt =
0in 0in 0in;">
<p class=3D"MsoNormal"><strong><span style=3D"font-size: 11.0pt; font-famil=
y: 'Calibri',sans-serif;">From:</span></strong><span style=3D"font-size: 11=
.0pt; font-family: 'Calibri',sans-serif;"> Triumphs <triumphs-bounces@au=
tox.team.net> <strong>On Behalf Of </strong>Tim Gaines<br /><strong>Sent=
:</strong> Wednesday, October 8, 2025 4:37 PM<br /><strong>To:</strong> Tri=
umphs <triumphs@autox.team.net><br /><strong>Subject:</strong> [TR] T=
R6 rear shock mount break</span></p>
</div>
</div>
<p class=3D"MsoNormal">=C2=A0</p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Segoe UI',sans-serif;">=
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 so=
rt it out. I thought I had found the problem quickly when I saw that the sp=
are tire securing hook bolt had come loose, but no such luck. When I finall=
y gave up on simple fixes and jacked up the left rear end and removed the t=
ire, I saw that the cross member had cracked near where the after market sh=
ock 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 thi=
s 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 throu=
gh this and can tell me just how a fix should be attempted.</span></p>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Segoe UI',sans-serif;">=
=C2=A0</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Segoe UI',sans-serif;">=
That crack shown in the photo seems to be only on the back side of the cros=
s member. I have learned some welding skills in the last few years, and I h=
ave 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 pr=
o welder would be the guy to call on, but is this really something that can =
be fixed that way?</span></p>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Segoe UI',sans-serif;">=
=C2=A0</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Segoe UI',sans-serif;">=
=C2=A0</span></p>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Segoe UI',sans-serif;">=
=C2=A0</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Segoe UI',sans-serif;">=
=C2=A0</span></p>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Segoe UI',sans-serif;">=
=C2=A0</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Segoe UI',sans-serif;">=
=C2=A0</span></p>
</div>
</div>
</div>
</div>
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** triumphs@autox.team.net **
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