iirc mounting hols need drilling to a slightly diffrent size and diffrent centers, 1mm bigger and 1mm closer off top of head
the carrier needs some adjustment to get the calliper running centeral on the disk its ether packing the carrier off the hub or the caliper off the carrier cant rember what way round. 200sx calipers or s14 i think
i rember makeing a set fit for someone and it wasent much work bit was a while ago so cant rember the specifics sorry