Well I was going to put my accessory belts back on (PITA so far) and i noticed my ac compressor is only 4 rib and everything else is 5 rib (compressor is from my h23 b4 swap). i have a r134 compressor with 5 rib clutch can i use that clutch on my r12 compressor? and just out of curiosity what would happen if i used the r134 compressor on a r12 system?