LS1 front brake calipers

[LSJM1]

left and right calipers for 12" brake conversion good shape includes bolts ,mounting brackets,hose $90 shipped paypal accepted

 

[BWAHitman]

left and right calipers for 12" brake conversion good shape includes bolts ,mounting brackets,hose $90 shipped paypal accepted

HI ! WHAT ARE THEY OFF OF ? DO I HAVE TO CHANGE MY SPINDLES ? WHAT ROTORS DO I NEED ? DO I NEED ANYTHING ELSE ? TOM THANKS