Product updated on 2019-10-02, BellTech - BEL:2500, 1988-98 Silverado/Sierra ( 1/2 Ton, Ext Cab, 3/4 Ton All Cabs 6 Lug) 2 inch Drop Spindle, 88-98 Chevrolet Silverado/Sierra (1/2 Ton, Ext Cab, 3/4 Ton All Cabs 6 Lug) 2 inch Drop Spindle , Belltech 2500, Rotor thickness is 1.25 inch, if 1.00 use part number 2400, also fits 92-98 (1/2 Ton, Std Cab) 92-99 Suburban & 6 Lug (3/4 Ton) 95-99 Tahoe/Yukon (2&4 DR) CAUTION: Wheels with more than 3 1/2 inches of backspacing, (including the factory 7 inch wheels) will interfere with the lower control arm which impairs the vehicle’s steering and are cautioned against. This rim contact with the lower control arm is indicated in Photos 8 and 9 of the instructions. We recognize that it is a common practice to trim the lower arm to eliminate the rim contact areas to provide clearance for wheels with more than 3 1/2 inches of backspacing. We have not determined the affect of such modifications on the structural strength of the lower control arm nor what other risks attend such modifications. IMPORTANT NOTE: Any person modifying stock components does so at their own risk.