I'm trying to figure out if the caliper slides can be removed. I took a quick look before putting the boat on the trailer last weekend and it looks like the slide has a hex head. I wanna take them apart and lube up the slides. I'm not getting even brake applications, hardly any, on a couple of the calipers. I haven't bled the system yet but will do that also. I'm also wondering if that dust cap on the slides helps or hurts. If water gets in maybe it's not getting out and the slides are seizing.