PJ, As I attempted to install Gator Blades on 20/52 FasTrak with <1 hr time on mower, center spindle presented a problem. The blade spindle bolt required more effort than necessary to remove. I used a 1/2" breaker bar with proper socket and blade lock tool in position. The breaker bar broke free the spindle bolt but after I got a couple of turns on it with the rachet, the bolt became stubborn and I ended up placing the breaker bar back on spindle bolt. Bolt was turning with breaker bar however, bolt was not backing out like it should. I ended up removing the access panel above the deck and placing a wrench on the top spindle bolt in order to remove bottom spindle bolt. It appears that the threads inside the spindle (the last inch) are not a clean cut. Have you encountered this problem with other blade spindles?