So I decided to change my gears today, and before I really researched the best method I took it all apart, not knowing I only need to remove the 3 screws on the gear and pry it off. Anyway I took the main nut and spring off and put it back on after I replaced the gear and pinion. After doing so the truck wouldn't freely roll like before, and it didn't sound right on test drive. Is it possible to over tighten the main nut and spring? How to tight should it be? Needing some guidance, don't want to tear this thing up. Thanks for the help.