You need to compress the spring to simply the re-installation. How I do usually do that is by using a vice that the spring can sit in, then tightening the vice to reduce the overall length by about an inch (at most), then run (3) STRONG wire ties through the spring. Space the wire ties out to hold the spring compressed in a straight line. Then, install everything as you normally would. Make sure everything is assembled CORRECTLY, then remove the wire ties. Easy peezy!