Triumph TR3A rear leaf spring Set . Gravity and time take a great toll on the springs of your Triumph TR2, TR3 and TR4 to CT23382. These springs are 15% uprated (128lbs Inch) for the Triumph TR2, TR3 and TR3A and the stock Spring Rate for the Triumph TR4 to CT23382.  Made in the UK for a perfect fit, constant spring rate and ride height. Beware of cheaper copies that are made off shore that will not have the correct ride height or spring rate