Please have a look at this photo of a semi-famous vintage racecar:
(http://www.britishracecar.com/BillHart-Triumph-TR250K/BillHart-Triumph-TR250K-DA.jpg)
It's not one of my better photos... but you can see a battery on the left. An aluminum fuel tank, a fuel pump, and a pressure regulator are on the right. Hoses for brake cooling are on both sides. Underneath all that, you should see a modified Triumph TR-4A frame. (I expect it's extensively modified if not entirely new... but I'm told it's a "TR-4A frame". Who am I to argue?)
Here's my question: "From this photo, can you tell or even guess anything at all about the rear end?"
IRS, DeDion, 3.577/1 ratio, with Laycock limited slip. If your going to guess, why hold back ? roverman.
Clearly IRS.
Nissan differential? Lexus? BMW? Certainly not Triumph, right?
What rear end? ;)
What little you can see looks like a stock TR4A frame, which was IRS from the factory. So whatever is a near bolt-in upgrade.
Apparently, some TR folks are using BMW & Nissan R200 diffs.
Where's Dan Blackwood when you need him? Probably off watching a Marshall football game....
Looks like Richard Good's mounts. He uses a Nissan R200 in his kit. Calvin Grannis would know.
More info:
http://www.goodparts.com/shop/index.php?categoryID=16
http://tr6.danielsonfamily.org/DiffMain.htm
Could it be this? http://forum.britishv8.org/read.php?3,1466
The mounting ears look stock to me.