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Birkin needs parts help


panamericano
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Help!  Below are some photos of the front suspension.  I need new ball joints.  Tom has the uppers, but we can't ID the lower.  The up-right appears to be Triumph trunnion, so I sent the photos to Moss Motors, figuring they know all things Triumph.  They said that at first glance the up-right looks like Spitfire, but then decided it isn't.  In the end, they say they don't have what I need.  Any ideas?  This a 1986-1989(?) Birkin.  

Thanks for any leads.

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It looks like a Herald/GT6 upright. Everyone thinks they are the same as Spitfire, but they're not. According to Moss, the same lower trunion serves both.

So, a pair of trunions 661-445 and 661-455, and 2 bushing kits 661-485 should fix you up

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+1. The caliper bracket as a bolt-on to the upright is the most obvious thing to me imho. I have spitfire and gt6 uprights in front of me (currently restoring a spitfire with modern bits) but you can compare the diagrams on the Moss Motors site under the "front suspension" section.

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Check with Dr Hasegawa. Iirc he did some major maintenance about 8 years ago.  Also if you can track down whoever has the yahoo forum archive?

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