[ollykiwi3]

Thanks again for your input.
pistons and seals Were all new as were the rotors.
I'm tending to think it could be a sticky piston or still a air bubble.
Will re check once diff is back in.
New pads of different type will be fist before changing calipers.
The.016" is between pad and calipers at the top and bottom which allows the pads to float back and forth with the direction of rotation of the disc. If you put your foot on brake with wheels off the ground and rotate the wheel the pads move with the disc until they hit the caper. This is.016".
The rotors are solid so no air vent in mine.

Any thoughts on why the pads are wedge shaped from top to bottom?
Leading edge wearing faster? This would mean the poison does not sit flat on the pad and the pad could chatter until more load applied right?

Thanks again