how to tell apart pre or post '96 rear calipers?

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how to tell apart pre or post '96 rear calipers?

by rich_DTM » Mon Apr 26, 2010 6:54 pm

does anyone know the physical difference of the early or late rear calipers?
i know pre '96 the discs were 170mm
and post '96 were 286mm

but how to tell the capilers apart as they have different part numbers for the pads!
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Re: how to tell apart pre or post '96 rear calipers?

by RobbieV » Mon Apr 26, 2010 7:08 pm

Rear discs were pre 260mm and post 270mm.

as for telling the difference - no idea.
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Re: how to tell apart pre or post '96 rear calipers?

by GreyDJ » Mon Apr 26, 2010 9:11 pm

That's strange, GM list the same pad for all Calibra rear applications.

All models disc pads 90485136
Cavalier CDi 96 Grey
Cavalier SRi 93 Satin Red
Cavalier Mk2 CD130 86 White
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Re: how to tell apart pre or post '96 rear calipers?

by bodgetastic » Mon Apr 26, 2010 9:48 pm

Autovaux sent me out some exchange calipers and the pads didnt fit because the pin spacing holding the pads was different. Would possibly have a different size piston too but really not sure. I think they have different numbers on them though which might help identify them or you could take the part number from the old pads?
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Re: how to tell apart pre or post '96 rear calipers?

by big_gordy » Mon Apr 26, 2010 10:11 pm

"you could take the part number from the old pads"

good idea i would say!
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Re: how to tell apart pre or post '96 rear calipers?

by GreyDJ » Mon Apr 26, 2010 10:41 pm

The 90485136 is definitely the right pads for my late Turbo but I have found big problems getting the correct fitting kit as the springs for the pins are not long enough.
Cavalier CDi 96 Grey
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Re: how to tell apart pre or post '96 rear calipers?

by Fraz » Mon Apr 26, 2010 11:31 pm

thats casue they stopped doing the pins that go in from the front, you need to fit shorter springs and come in from the back of the backplate
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Re: how to tell apart pre or post '96 rear calipers?

by GreyDJ » Tue Apr 27, 2010 12:29 am

Fraz wrote:thats casue they stopped doing the pins that go in from the front, you need to fit shorter springs and come in from the back of the backplate

I am using the 'in from the back' pins, but the holes in the callipers for the pins are spaced too far apart for the pin 'hollows' in the springs.
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