{"product_id":"pdm-bkbn-k1220-7d9244","title":"Fabtech K1220 6-Inch Lift Kit with Front Extensions \u0026 Rear Performance Shocks — 2025 Silverado\/Sierra 1500 4WD","description":"\u003cp\u003eFabtech K1220 retains the factory front coilovers using lower shock extensions and supplies replacement spindles, crossmembers, rear blocks and two rear Performance shocks.\u003c\/p\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2025 Chevrolet Silverado 1500 Custom, LT, WT, LTZ or RST, or GMC Sierra 1500 SLE, SLT or Elevation; V8 gasoline, 4WD, crew cab with short bed, and stock suspension. Verify exact year, trim, drivetrain, cab, bed and installed equipment before ordering.\u003c\/li\u003e\n\u003cli\u003eFor steel rear leaf springs with the correct matching round U-bolt configuration only. Does not fit composite rear leaf springs, Adaptive\/Magnetic Ride Control, Super Cruise, AT4, Trail Boss, 2WD or other cab\/bed configurations. Denali and 2026 models are outside this listing.\u003c\/li\u003e\n\u003cli\u003eNominal 6-inch system. The supplied rear blocks are physically 5 inches tall; this is not a claim of 5 inches of added rear ride height. Factory wheels and tires cannot be used.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage contents\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOne FTS21250 component box 1: front and rear crossmembers, driver and passenger differential brackets, sway-bar frame brackets, differential skid plate and specified installation hardware.\u003c\/li\u003e\n\u003cli\u003eOne FTS21308 component box 2 for 2025: driver and passenger replacement spindles, two FTBK5 5-inch rear blocks, four FT769U round U-bolts, two FT20664 axle spacers and specified tie-rod ends, rear bumpstop spacers, rear brake-line brackets and subassembly.\u003c\/li\u003e\n\u003cli\u003eOne FTS21252 front shock-extension kit: four FT20568BK brackets, two FT20847 extensions, two FT20891 shock-to-arm mounts, two FT20872 bottom plates and the specified bushings, sleeves and hardware. Factory front coilovers are retained; no new front dampers are supplied.\u003c\/li\u003e\n\u003cli\u003eTwo FTS7240 rear Performance shocks. Two new dampers total, both rear.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation and requirements\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eProfessional installation required. Read the current FT21250i instructions and inspect the complete kit, factory suspension and alignment before work.\u003c\/li\u003e\n\u003cli\u003eRemove and reposition the front differential and replace the crossmembers. The driver-side rear crossmember\/control-arm mount requires a 2-inch cut; the driver differential bracket requires a 1\/2-inch drilled hole. Follow the exact mounting and torque instructions.\u003c\/li\u003e\n\u003cli\u003eThe front extension branch requires pressing out the factory lower coilover cross-shafts and bushings, fitting the specified aluminum half-bushings and brackets, and rotating the strut bodies 90 degrees into the new lower mounts. Follow the FTS21252 procedure; do not use the separate Trail Boss\/AT4 extension parts.\u003c\/li\u003e\n\u003cli\u003eInstall the replacement spindles, axle spacers, tie-rod ends and supplied brackets. Trim 3\/8 inch from the factory threaded tie-rod ends and cut the brake-line bracket tabs as instructed. Relocate and secure the brake and ABS lines.\u003c\/li\u003e\n\u003cli\u003eInstall the rear blocks with the correct round U-bolts, bumpstop spacers, rear brake-line brackets and the selected rear shocks. Verify all tire and line clearances through suspension and steering travel.\u003c\/li\u003e\n\u003cli\u003eAlign to factory specifications, adjust headlights, and recheck fasteners and wheel hardware after 50 miles and periodically.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTire and wheel guidance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eManufacturer guidance, all with minor trimming and 5-inch wheel backspacing: 35\/12.50R18 or 295\/70R18 on 18×9 wheels; 35\/12.50R20 or 295\/65R20 on 20×9 wheels. Verify actual clearance on the vehicle. Wheels and tires are sold separately.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eManufacturer part number: K1220. \u003ca href=\"https:\/\/fabtechmotorsports.com\/product\/6-lift-kit-front-shock-spacers-rear-performance-shocks-k1220\/\"\u003eManufacturer product details\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eCalifornia Proposition 65: WARNING: Cancer and Reproductive Harm. \u003ca href=\"https:\/\/www.P65Warnings.ca.gov\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Fabtech","offers":[{"title":"Default Title","offer_id":54084090167596,"sku":"K1220","price":1886.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8659\/3580\/files\/k1220.jpg?v=1793869267","url":"https:\/\/lee-mods.com\/products\/pdm-bkbn-k1220-7d9244","provider":"Lee Mods inc.","version":"1.0","type":"link"}