Fabtech 17-21 Ford F250/F350 4WD Diesel 6in 4Link Sys w/Coils & Stealth spo-notify-me-disabled and a universal wiring harness

and a universal wiring harness

2012 GMC Sierra 1500 SLT

2007 GMC Sierra 1500 Classic Extended Cab Pickup

4Dr Models Only

Fabtech 17-21 Ford F250/F350 4WD Diesel 6in 4Link Sys w/Coils & Stealth spo-notify-me-disabled and a universal wiring harnessTIRE SIZE 37 12. 50R17 WHEEL 17X9 W 4 3 4" BS W MINOR TRIMMING; TIRE SIZE 37 12. 50R18 WHEEL 18X9 W 4 3 4" BS W MINOR TRIMMING; TIRE SIZE 37 13. 50R20 WHEEL 20X9 W 5" BS W MINOR TRIMMING; 3. NON DUALLY MODELS ONLY.; 42. WILL NOT FIT GAS MOTORS.; 163. VEHICLES EQUIPPED WITH 2 PIECE DRIVESHAFT REQUIRE FTS419.; 165. SOME 2017 MODELS MAY REQUIRE A DUAL STEERING STABILIZER FOR OVERSIZED TIRES. ORDER DIRT LOGIC FTS220512, DIRT LOGIC W RESI FTS221162 OR