Although not the preferred way to lift a vehicle, I have a Bilstien assembly with a 1 inch spacer up top. I was doing the brakes last night and figured I would throw this other assembly on my truck while I was messing around with the front end. My old Tokico (with no spacer) popped right out, but I couldn't flex things enough to slide in the other assembly? What would need to be broke loose to pop this thing in? Or do I need to compress the spring to put it in? Any advice would be greatly appreciated.