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Originally Posted by Darren C  I've got Granada Mk3 rear callipers and solid disks. The callipers need an overhall, so I thought it may be best to upgrade.
Does anybody know what's involved in changing over to the larger Granada rear vented disks and corresponding Granada callipers? Is this simply a bolt off / bolt on option, or is there a load of machining involved?
I see that Rally designs are selling vented rear disks for £15.00 plus VAT per set, and I have found the larger callipers for about £65.00 per side on ebay, but is it really that easy? |
Scorpio (mk3 Granada) std rear brake disc is solid, and dia is 252 mm.
If You have these, You can upgrade them easily to 272 mm / solid or ventilated.
Solid founds from Sierra RS Cosworth, but You need to drill new holes; cossie is 4x108 mm. You need rear bearing carriers too, the ones with 10 mm longer lugs.
Calipers are same in solid 252 and 272 mm versions (read: same in all Sierra/Scorpios with solid discs). So in this case Your originals will work.
With ventilated disc you must use caliper from ventilated disc assembly.
Only diffirence between ventilated and non-ventilated caliper is body cast; it`s wider. Piston and pads are same.
Disc founds from Cosworth Scorpio and big engined STW Scorpio.
In short, You need bearing carriers with longer lugs too.
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