nei det tenker du på quaife kasse du:) HERE YOU BUY THE GEAR KIT ONLY we built big tooth gearkit in north italy with very good materials. like standard ratios just optimized,new shafts,modified syncro on CNC machine for fast gear change.Ideal for fast road, track days and race speed in any gears with standard 16" wheels and standard diff 3.6 1st 71km/h 2nd 110km/h 3rd 161km/h 4th 217km/h 5th 269km/h all gearkit can handle between 500hp 550nm and 600hp 700nm DIRECT TOP 1:1 STANDARD RATIOS we offer the full rebuild gearboxes plus fitting gearkit (like new case,new seals,new bearings and fitting gearkit) Customers can send us standard MT75 gearboxes in any conditions and than we return it back in new conditions. time delivery 3 weeks