Triumph TR4A, 1965-1967

First things first - should that hyphen be there or not? (TR-4A vs. TR4A)

I originally put the hyphen in the title because that's the way the name appeared in Triumph's first ad for the car ("This month Triumph introduces next month's two best-selling sports cars"). However, it doesn't appear that way in many other places: not in the owner's or workshop manuals (though the workshop manual talks about the "TR.4A" a fair bit), nor in Robson's nor Piggot's books. The Kastner Competition Preparation Manual supplement talks about the TR-4A, though.

I guess the answer is that they're all correct!

Externally, the TR4A looks like a continuation of the TR4. The cars share a few pieces of sheet metal and have much the same engine, but most everything else differs. For starters, the TR4A is on a much wider frame and a redesigned suspension. The front suspension is adjustable for camber and the rear suspension is independent - or could be. Triumph dealers in the US convinced Standard-Triumph that they could continue to sell non-IRS cars at a good price, and Triumph responded with a clever solid axle design that fit into the IRS frame.

Further information about the Triumph TR-4A includes:


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