I took the Z out a few days ago and did some small jumps with my son. Nothing big -3ft tall dirt ramps. Well, since then Ive noticed the front end seems loose. I noticesd I have some front/back play on the steering head and Im wondering If thats normal. I replaced the bearings with these a while back but just noticed this. Any ideas on what to check? I dont think I busted the bearings so Im stumped.