Manufactured by Belltech | 23323 | 2007-18 Tahoe/Yukon, Use BEL:34324 which includes sensor rods and shock extenders that are not included but needed on non-air ride vehicles, Use BEL:34324, kit has the same coils plus shock extenders. 2007-17 Chevrolet Tahoe/Yukon (without factory auto ride shocks) 3 imch or 4 inch Rear Drop, do not include shock extenders or rear air sensor link, Here is the situation. You do your research and figure out what lowering you want to match your wheel and tire combination, and install the kit. Now you are thinking that you really wanted another 1 inch lower on the front. What do you do? If you have a set of the Belltech “PRO” Coils in your kit it’s not a problem. This Belltech advanced lowering kit which includes Belltech‘s high quality coil springs and engineered vehicle specific upper spring or strut mount spacers allowing you to have 2 lowering height options with one purchase. Product information updated on 2024-07-04. This product can ship by Small Parcel