I'm pretty sure those would be Xtra-10 shocks from the XCR. You'd have to get a measurement for us to know for sure. If they are X-10 shocks you'll need longer suspension rods. Go and grab a center-eye to center-eye measurement for the rest of us to give you a hand.
Those actually should fit in the original indy front suspension then. I'd bolt them in and check to see if the suspension articulates correctly. I'd also go easy on it the first few miles this winter to be sure everything is correct. The xtra-10 front shocks I think are normally 15-1/4" eye-to-eye.
When you remove your original shocks, double check to be sure the length is the same, if its not close, they wont work.
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