'89 New Yorker Brakes

Hello All,
I own a "89 New Yorker with ABS and rear disc brakes.
On Friday, the rear brakes they began to grind. So, I immediately parked it
until I was able to get parts.
Today, after gathering new pads and a loaner rear disc brake tool, I had
planned on tackling the job. Unfortauntely, all I was abe to do is remove
the rear caliper and pads. I could not get the tool between the caliper
piston and edge to rotate the piston back in. I believe the piston is at
its full outward travel. I tried using the tool (a spanner disk with a
clamp) but the piston was too hard to move.

Anyone have any ideas?
BTW, Anyone know what type of ABS system is on this puppy?

Thank you,

Jesse

In article >,
says...
> Hello All,
> I own a "89 New Yorker with ABS and rear disc brakes.
> On Friday, the rear brakes they began to grind. So, I immediately parked it
> until I was able to get parts.
> Today, after gathering new pads and a loaner rear disc brake tool, I had
> planned on tackling the job. Unfortauntely, all I was abe to do is remove
> the rear caliper and pads. I could not get the tool between the caliper
> piston and edge to rotate the piston back in. I believe the piston is at
> its full outward travel. I tried using the tool (a spanner disk with a
> clamp) but the piston was too hard to move.

Try releasing some of the fluid back pressure before you do this , perhaps by
opening the bleed screw on the caliper ?