These rear blocks are made from solid steel and coated with black powder for superior strength and.
The leaf springs U bolts is longer than original bolts with 10.9 grades and 9/16 thread pitch, more suitable for tuner; If they are too long, you could cut them as needed.
Raise your truck a true 4in in rear, give your truck an aggressive look and offer extra ground clearance to use larger tires or rims, ensure driving safety and comfort.
Replacement for 2007-2019 Silverado 1500; Replacement for 2007-2019 Sierra 1500, please check the vehicle model to verify compatibility prior to placing an order.
Easy to install, no special tools required, professional installation is strongly recommended.