Had to get a replacement sierra rear caliper but the piston in it is different to what I've had in the past. I have the small cube type tool.

like this

LASER BRAKE REAR CALIPER WIND BACK CUBE TOOL 5541 | eBay

Up till now my pistons have always had 4x cutouts and this cube has always done the job but this new piston has 2 cutouts much further apart and the cube is too small.

Ford Sierra, XR4 Rear Brake Caliper Piston P4308 | eBay

Can anyone point me toward what tool I need to wind this piston back, I've tried with levering screwdrivers and allen keys etc but it's pretty solid and needs something meant for the job.

Cheers

I did mine the other day, I used a g clamp and a pair of grips. Every quarter of a turn of the grips tighten the g clamp up and repeat. Works a treat.

[Edited on 4/6/13 by wylliezx9r]

I'll give that a try thanks. It's new and does fit over the discs and pads but is just causing the pads to stick and drag slightly so needs a slight turn back.

[Edited on 4/6/13 by Scuzzle]

The vital bit is to let the handbrake adjustment off fully before winding back.

The cube tool and firm hand pressure is all that should be required.

A set of needle nose pliers will do it if your careful and it isnt too stiff.

Machine mart have started to do a cheaper big size tool that may fit, but only has 2 different sets of pins in.

http://www.machinemart.co.uk/shop/product/details/040817916?da=1&TC=SRC-caliper+wind

I just bought this cheap tool from Ebay, figured it would come in handy

UNIVERSAL NEW BRAKE CALIPER PISTON REWIND WIND BACK TOOL KIT 22 34 PIECES SET | eBay
Adult Size

Just hope there's one in here that will fit, piston is 40mm in diameter and the 2 cutout notches are at the very outside.

For a brief moment I did contemplate drilling a couple of holes in the piston face so the cube type tool I already have would fit but I thought better of it.