Crx si brakes

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I have 91 crx si. my friend has an 89 hatch my brakes are alot larger. Anyways to the point, I bought some spindles from a crx si and they are larger than his and have the same amount of splines. The rotors on the other hand are smaller than mine. I was wondering if the caliper from my crx would mount up to these spindles? Any advice would be helpfull. :rock:

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If anyone knows any information it would be very helpfull before i dissassemble it.

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Never mind just took them apart They are the same just the caliper on the arms i had where a different design.