How much does this cost to the nearest dollar?

Yukon 11 Disc Brake Conversion Kit Rear for Ford 9 and 8.8
This kit will ONLY work with the New-Style/Torino Housing Ends for Ford 9 Rearends and some 8.8 Truck Rearends. Please confirm fitment! Yukon disc brake conversion kit ford 9 and 8.8 differentials Kit includes rotors (Inner bore on rotor is calipers, mounting brackets and attaching hardware Rotors 4.5 diameter passenger car bolt pattern Caliper mounting brackets fit the 8.8 Late Ford axle housings with 2 X 3.56 (3/8 studs) pattern and big 3.15 diameter bearing This kit is designed for vehicle installations with a 2.5 brake gap (housing flange

Price is $675.00
Price: $675