[TR] 4A upper A arms

[Cliff Hansen]

Thanks for correcting my error, Randy - I should not have relied on memory there.

Cliff

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From: Randy and Valerie DeRuiter <deruiterville at hotmail.com>
Sent: Monday, May 18, 2026 6:38 AM
To: Cliff Hansen <cliff_hansen at outlook.com>; dave northrup <dave at ranteer.com>; list Triumph <triumphs at autox.team.net>
Subject: Re: 4A upper A arms

Nope - longer arms are the fronts - that angles the vertical link backwards to give the 3 degrees of castor.  And Dave you will need TR4 trunnions with the castor built in to finish this.
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From: Triumphs <triumphs-bounces at autox.team.net> on behalf of Cliff Hansen <cliff_hansen at outlook.com>
Sent: Sunday, May 17, 2026 8:06 PM
To: dave northrup <dave at ranteer.com>; list Triumph <triumphs at autox.team.net>
Subject: Re: [TR] 4A upper A arms

The longer arms are the rears.

I think the letters are on the shorter (front) arms.

The letter faces up. L up on the left side, R up on the right side.

Cliff

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From: Triumphs <triumphs-bounces at autox.team.net> on behalf of dave northrup <dave at ranteer.com>
Sent: Sunday, May 17, 2026 4:27 PM
To: list Triumph <triumphs at autox.team.net>
Subject: [TR] 4A upper A arms

I am converting my 3A to 4A front suspension using 4A upper A arms.  I bought them from a breaker, and as i clean them up i notice that 2 of the 4 arms have L on one side and R on the other. Yes, left and right, but beyond that I don't understand.   And the other 2 A arms have no marking

How do i install these A arms?
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