1999-2018 Chevrolet/GMC 1500 RWD, 4WD 2.25'' Rear Block Kit Tuning & Electronics 2017-2019 Duramax 6.6L L5P Bolts between the front frame

Bolts between the front frame rails and attaches to provide support to the steering box

Delivers 10 psi increase at lower pressure range and 25 psi increase at higher pressure ranges

we recommend a BD exhaust brake system

Fully equipped with manual and CNC lathes

1999-2018 Chevrolet/GMC 1500 RWD, 4WD 2.25'' Rear Block Kit Tuning & Electronics 2017-2019 Duramax 6.6L L5P Bolts between the front frame2. 25 inch rear lift For models with 6 lug studs nuts 2 & 4WD models OEM style cast iron blocks Kit includes: pair of rear cast iron lift blocks Extended length U bolts All required hardware Note: May require longer shocks or shock extension 67 3809