Birkin needs parts help

[panamericano]

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.

[7Westfield]

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

[MV8]

+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.

[panamericano]

Thanks, guys.  At last, people that know their sluff better than Moss.

[7Westfield]

I've always found MM very helpful.

As opposed to Victoria British, who were real idiots

[wemtd]

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?