Lately, as its been heating up, ive been starting to develop a little squeaking/ high pitch squealing sound from my front left coil over, and a tiny bit from the right front. It seems to only happen on the rebound stroke but its been hard to isolate it to that but at first i thought it might just be hot oil, maybe low oil, or possibly debris on the shaft but now i have no idea what it might be, There are only 4000 miles on them so theyre pretty much brand new. Does any one have any ideas