Product information updated on 2021-08-25, Manufactured by BellTech - Part Number Belltech 6522, 2007-13 Silverado/Sierra Std Cab Only 7 inch Rear Drop (Use 6521 if out of stock), 2007-13 Chevrolet Silverado/Sierra Std Cab Only 7 inch Rear Drop, 7 inch flip kit. Requires 8510 shocks., Belltech Rear flip kits are engineered for each individual application, to relocate or “flip” the trucks axle from underneath the leaf spring pack, to on top of the leaf spring pack. This brings the axle and the wheels closer to the truck frame, lowering the rear of the truck up to 7”. Each kit is manufactured with high quality steel and feature a durable powder coated finish and Grade 8 hardware. A Belltech C-Notch is included in most Rear Flip Kits.