{"product_id":"2025-gm-1500-trail-boss-at4-6-inch-big-lift-kit-44-35625","title":"2025 GM 1500 Trail Boss AT4 6\" Big Lift Kit (44-35625)","description":"\u003cp\u003eThe ReadyLIFT 6-inch Big Lift Kit for the 2025 Chevy Silverado Trail Boss and GMC Sierra AT4 is a comprehensive solution for owners seeking maximum height and off-road presence. It features heavy-duty boxed steel crossmembers and a full-width 3\/16-inch plate steel skid plate for ultimate underbody protection. By utilizing a proprietary lower strut clamshell design and top-mount extensions, this kit maintains factory suspension geometry and ensures your high-performance factory shocks perform at their best even at an 8-inch total lift height.\u003c\/p\u003e\n\u003ch6\u003eFeatures\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eProvides a total of 8 inches of lift (ReadyLIFT 6-inch + Factory 2-inch lift).\u003c\/li\u003e\n\u003cli\u003eAngled and offset top-mount strut extensions minimize wear and optimize shock performance.\u003c\/li\u003e\n\u003cli\u003eProprietary lower strut clamshell design maintains factory geometry for a smooth ride.\u003c\/li\u003e\n\u003cli\u003eIncludes heavy-duty tubular upper control arms (UCAs) with maintenance-free pivot bushings.\u003c\/li\u003e\n\u003cli\u003eBoxed steel front and rear crossmembers provide superior structural rigidity.\u003c\/li\u003e\n\u003cli\u003e1\/4-inch boxed plate steel differential drop brackets with double gussets prevent torsional twisting.\u003c\/li\u003e\n\u003cli\u003eFabricated 5-inch tall tapered rear lift blocks with integrated bump stop landings maintain proper rake.\u003c\/li\u003e\n\u003cli\u003eComes with a full-width 3\/16-inch plate steel front skid plate for essential protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eNotes\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eThe \"Auto 4 Hi\" feature is not recommended for use after installation.\u003c\/li\u003e\n\u003cli\u003eVehicle alignment, headlamp aim, and Advanced Driver Assistance Systems (ADAS) should be recalibrated after installation.\u003c\/li\u003e\n\u003cli\u003eTrimming of the front valance and inner fender liners is required for recommended tire\/wheel combinations.\u003c\/li\u003e\n\u003cli\u003eInstallation time is estimated at 10 hours, excluding alignment and tire assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eCompatibility Notes\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eExclusively designed for 2025 Chevy Silverado 1500 Trail Boss and GMC Sierra 1500 AT4 4WD models.\u003c\/li\u003e\n\u003cli\u003eNot compatible with AT4X, ZR2, or models equipped with rear mono-leaf springs.\u003c\/li\u003e\n\u003cli\u003eWill not fit 2025 models with round U-bolts unless paired with U-bolt kit 67-35150UB.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eTire Fitment\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eRecommended (No Trimming): 35x12.50 tires on 20x9 wheels with 0 offset.\u003c\/li\u003e\n\u003cli\u003eMaximum Fitment (With Trimming): 37x12.50 tires on 20x9 wheels with 0 offset.\u003c\/li\u003e\n\u003cli\u003eMaximum Wheel Width: 20x10 with -18 offset (requires trimming).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecs\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eTotal Lift Height: 8 inches.\u003c\/li\u003e\n\u003cli\u003eCrossmember\/Skid Plate Material: 3\/16-inch thick plate steel.\u003c\/li\u003e\n\u003cli\u003eDifferential Drop Material: 1\/4-inch boxed plate steel.\u003c\/li\u003e\n\u003cli\u003eKit Contents: Ductile iron knuckles, front\/rear crossmembers, skid plate, differential drops, strut extensions, tubular UCAs, rear blocks, and hardware.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ReadyLift","offers":[{"title":"Default Title","offer_id":42932059897945,"sku":"44-35625","price":3821.94,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8030\/9593\/files\/44-35625.jpg?v=1766179939","url":"https:\/\/dirtygarage.com\/products\/2025-gm-1500-trail-boss-at4-6-inch-big-lift-kit-44-35625","provider":"Dirty Garage","version":"1.0","type":"link"}