{"product_id":"ksp-1-5-in-wheel-spacers-6x5-5-for-silverado-sierra-1500-forged-fit","title":"KSP 1.5 in Wheel Spacers 6x5.5 for Silverado Sierra 1500 - Forged Fit","description":"\u003cp\u003eIn this review the KSP 1.5 in wheel spacers are evaluated for owners who want a reliable, hub-centric solution to widen wheel track on Chevy and GMC trucks and SUVs. The single biggest reason to buy is the construction: forged 6061 T6 aircraft aluminum with CNC machining and black anodizing gives a durable, precision part that installs cleanly and reduces the chance of vibration. The review focuses on fitment across 6x139.7 vehicles, build quality, and the practical details of installation and long-term use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Designed for 6x139.7 bolt pattern vehicles, the spacer fits many Silverado, Sierra, Tahoe, Suburban, Yukon and related models for confident compatibility.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Forged 6061 T6 aircraft aluminum construction offers greater strength and fatigue resistance compared with common cast spacers.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePrecision machining:\u003c\/strong\u003e CNC machined hole positions and dimensions ensure accurate alignment and a snug hub-centric seating for improved wheel stability.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCorrosion resistance:\u003c\/strong\u003e Black anodized finish protects the aluminum from corrosion and preserves appearance over time.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHardware quality:\u003c\/strong\u003e Includes ISO\/DIN grade 10.9-12.9 geomet studs and heat-treated SCM435 bolts to reduce breakage risk and improve safety.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Supplied as a package of four forged spacers with thread locker and recommended torque guidance for easier installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis spacer is aimed at truck and SUV owners who need a factory-like fit for wheels on the 6x139.7 bolt pattern, including many Silverado 1500, Sierra 1500, Tahoe, Suburban and Yukon model years. It suits hobbyists and professional installers who prefer a forged aluminum solution with quality studs and corrosion protection.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include vehicles with different bolt patterns or hub bores, drivers who require more than 1.5 in of spacing, and buyers who insist on a guaranteed hub-centric conversion kit from the wheel maker rather than a universal spacer.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eHigh strength forged 6061 T6 aluminum construction reduces cracking compared with cast alternatives.\u003c\/li\u003e\n \u003cli\u003eCNC precision and 78.1 mm hub bore promote accurate fit and minimize vibration when installed correctly.\u003c\/li\u003e\n \u003cli\u003eQuality studs and heat-treated bolts improve durability and lower the chance of stud failure.\u003c\/li\u003e\n \u003cli\u003eBlack anodize and included thread locker make the kit practical and corrosion resistant.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eHub-centric performance received mixed feedback from some users, so precise hub centering may vary by wheel and hub combination.\u003c\/li\u003e\n \u003cli\u003eIncluded studs may be slightly long on some wheel\/hub setups and might require trimming for full clearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eBolt Pattern\u003c\/td\u003e\n\u003ctd\u003e6x5.5 (6x139.7 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSpacer Thickness\u003c\/td\u003e\n\u003ctd\u003e1.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eThread Pitch\u003c\/td\u003e\n\u003ctd\u003eM14x1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eHub Bore\u003c\/td\u003e\n\u003ctd\u003e78.1 mm (3.07 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eForged 6061 T6 aircraft aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eISO\/DIN 10.9-12.9 geomet studs, SCM435 heat-treated bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSet of 4 forged spacers with thread locker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe KSP 1.5 in forged wheel spacers are a solid value for owners of Chevy and GMC trucks and SUVs who need a durable, precision spacer for 6x139.7 hubs. The forged 6061 T6 construction, CNC machining and quality hardware make it a practical upgrade for improved track width and wheel clearance, though buyers should verify hub-centric fit with their specific wheels and be prepared to trim stud length if necessary.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill these spacers fit my Silverado 1500?\u003c\/strong\u003e\u003cbr\u003eThey fit Silverado 1500 models that use the 6x139.7 bolt pattern across the listed model years; confirm your bolt pattern and hub bore before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these spacers hub-centric?\u003c\/strong\u003e\u003cbr\u003eThe spacers have a 78.1 mm center bore to provide hub-centric seating, but real-world hub-centric performance can vary with wheel center hole tolerances.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat torque should be used on the lug nuts?\u003c\/strong\u003e\u003cbr\u003e Recommended torque is 85-95 ft\/lbs; use thread locker as supplied and follow torque sequence for safe installation.\u003c\/p\u003e","brand":"KSP PERFORMANCE","offers":[{"title":"Default Title","offer_id":48646811156699,"sku":"B0976SKXC5","price":131.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71xNObLC9WL._AC_SL1500.jpg?v=1778734682","url":"https:\/\/gearmusthave.com\/products\/ksp-1-5-in-wheel-spacers-6x5-5-for-silverado-sierra-1500-forged-fit","provider":"GearMustHave","version":"1.0","type":"link"}