Andrew,

The one that has the 5mm groove straight thru the face of the piston is the
standard PBR R31 calliper. I'm not familiar with any other type. May be the
other type supersedes the original as it sounds like it would still take the
DB1106 pads. The groove is in the piston like that to stop it rotating when
the hand brake is applied and the pads have a couple of little lugs that fit
into the groove. The only other explanation is that the callipers could have
been off the U12 89-92 FWD Pintara although I don't think there was a wagon
in this model. These take a different pad DB1166.

regards
Terry

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Andrew Robert
GREENBURY
Sent: Sunday, 3 June 2001 8:51
To: [EMAIL PROTECTED]
Subject: RE: quick question on R31 disk rear end....


Thanks Terry and Heath

Looked at two sets of pintara wagon calipers today - one set had a ~5mm
groove through the middle, and the other set had this groove only at its
perimeter ie it looked like a piston within a piston, with the groove
only in the outer "dougnut" section.... :)

Anybody get what I mean, and has anyone come across these differences
before???

Andrew

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