Anyone know the inside dia. of the rear spring on a 1976 XJS with the inboard brakes? The ones I have that I was told were for this car measure 2.5" inside, and are 9.25" long. I am trying to find some shocks for the rear end, and the ones I got, the spring seat did not fit inside my springs. If this is not the right spring for this car , does anyone know what shock will work with the springs I have?
Thanks
Wade

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Hmm. I hate to say this but I would not continue to go in the direction of trying to make all fit around a faulty or mismatched spring. That's just me... If I'm reading you right.

I would return the springs or try to forget about them and go to Welsh (or some other) and get the correct springs for the car. Going in the direction of making a bunch of accomodations for the wrong spring, could turn into a real crazy maker in a few different ways.

There is also British Auto Parts. Right springs can be had for low money.