Rear end identification

[Moderator]

Please have a look at this photo of a semi-famous vintage racecar:


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?"

[roverman]

IRS, DeDion, 3.577/1 ratio, with Laycock limited slip. If your going to guess, why hold back ?  roverman.

[Moderator]

Clearly IRS.

Nissan differential? Lexus? BMW? Certainly not Triumph, right?

[MGBV8]

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....

[mgb260]

Looks like Richard Good's mounts. He uses a Nissan R200 in his kit. Calvin Grannis would know.

[MGBV8]

More info:

http://www.goodparts.com/shop/index.php?categoryID=16

http://tr6.danielsonfamily.org/DiffMain.htm

[Dan B]

Could it be this? http://forum.britishv8.org/read.php?3,1466

The mounting ears look stock to me.