I bought this bike a couple of years ago. It was a basket case and I am slowly rebuilding it. Today is new shocks. I chose Progressive shocks mostly due to cost. I don’t ride this bike every day and I certainly don’t race it, so these will last a long time.
The original shocks are 13″ long eye-to-eye and these are 13.5″ to raise the back a bit and quicken the steering. Other than having to remove the exhaust cans to get to the lower shock bolts, it was a straightforward remove and replace.