This complete 4,5" Suspension Lift Kit system is not only built for daily driving, but will handle about any off road excursion you can think of. The heavy duty main cross-members are locked together by a full belly pan that offers superior off road protection. Included with this IFS lift kit are CNC machined steering knuckles which ensure a clean and simple install that is made easier by the lower strut mounts that don't require you to disassemble the strut.Rear NX² series shock absorbers are included with 9500 series gas shocks available as an upgrade for this 4-1/2" Toyota Tundra lift kit. Lift kit consists of:Lifted knuckles,Front and rear crossmembers,Upper strut spacers,Driver & passenger side steering stops,Front brake line brackets,Differential drop brackets,Bump stop brackets,Sway-bar drop brackets,Lower skid plate,Lifted cast iron blocks,U-bolts,E-brake and brake line brackets,2x BDS NX2 Nitro series shocks,Requires frame bracket modification and welding,