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Are hawk/hatch STi rear discs interchangeable?

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Old 08 October 2020, 11:22 AM
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fpan
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Default Are hawk/hatch STi rear discs interchangeable?

Last year I bought a full set (4) of Brembo discs for my hatch when Eurocarparts had a discount and they are still in the loft waiting to be fitted when my current ones need replacing.
Looking at the part numbers of what I was supplied, it seems that Eurocarparts list the same rear disc part numbers for the hawk & hatch. Other suppliers (e.g. scoobyparts) list different part numbers for the rears between the hatch/hawk.
Suddenly I've remembered reading somewhere that the hatch ones are different (something with a hole that needs to be drilled for the handbrake if I am not mistaken?) from the hawk.
Could someone confirm this before I try to return them back to Eurocarparts (not sure if they'd take them back after 11 months despite not being used).
I'll post some pictures of them later when I get them down from the loft.
Thanks.

Last edited by fpan; 08 October 2020 at 11:26 AM.
Old 08 October 2020, 01:19 PM
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Don Clark
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Hawk handbrake is adjusted via the brake back plate
Hatch is adjusted through the disk - hence the drilling a hole if not present plus balance dimple on other side. (Alcon rears)








Last edited by Don Clark; 08 October 2020 at 01:25 PM.
Old 08 October 2020, 01:51 PM
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fpan
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Thanks Don, good to know that the "problem" can be fixed easily!
I've found your pic!
I've just noticed the custom ramps, great work!

Last edited by fpan; 08 October 2020 at 02:29 PM.
Old 08 October 2020, 04:44 PM
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No the Hawk discs have more offset on they so won't fit on a hatch , the discs will rub on the backplates before fitting against the drive flange , from memory I think its about 4mm difference
Cheers Ian
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Old 18 October 2020, 03:42 PM
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fpan
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I've got the correct part it seems 09.A198.11 .
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