{"product_id":"rear-spare-tire-support-plate-shock-mount-crossmember-heavy-duty-fit","title":"Rear Spare Tire Support Plate Shock Mount Crossmember - Heavy Duty Fit","description":"\u003cp\u003eIn this review the Mountainpeak rear spare tire support plate is examined for owners of 1999-2014 Chevrolet Silverado and GMC Sierra 1500 trucks who need a stronger, corrosion-resistant crossmember. The bottom line: this is a straightforward replacement that focuses on durability and fit, replacing the crossmember that sits forward of the rear axle and supports the rear of the fuel tank and the upper left shock. It is best for owners who want a beefier, galvanized steel part that welds in place and restores the factory mounting geometry.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Designed specifically for 1999-2006 Silverado\/Sierra and 2007-2014 Silverado 1500 and GMC Sierra 1500 Reg Cab, Ext Cab, and Crew Cab, ensuring correct alignment with original frame mounts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy duty material:\u003c\/strong\u003e Constructed from heavy duty steel with a galvanized surface to resist rust and provide a better welding surface than untreated parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to install:\u003c\/strong\u003e Installation avoids full bed removal; remove the old shock, position the replacement crossmember, weld it solid, then reinstall the fuel tank and shocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Runs side to side on the frame to support the upper left side shock and the rear end of the gas tank, restoring original support and load path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded plates:\u003c\/strong\u003e Two outer end plates and a right side inside mount plate are sent loose to simplify fitting and final welding during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis part is for truck owners, mechanics, and restoration projects where the original spare tire support crossmember is corroded, damaged, or weakened and a solid replacement is needed. It suits those comfortable with basic frame welding and reinstallation of the fuel tank and shocks.\u003c\/p\u003e\n\u003cp\u003eIt is not ideal for someone seeking a bolt-in, non-permanent fix or a solution that requires no welding; if you need a no-weld repair or a different fitment outside the listed years and cab types, look for alternate options.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuild quality is noticeably beefier than many factory units, giving improved durability under load.\u003c\/li\u003e\n\u003cli\u003eGalvanized surface improves corrosion resistance compared to bare steel and prepares the part for welding.\u003c\/li\u003e\n\u003cli\u003eCorrect fitment for a wide range of 1999-2014 Silverado and Sierra 1500 models, which reduces trial-and-error during installation.\u003c\/li\u003e\n\u003cli\u003eLoose end plates simplify alignment and welding on the bench or frame.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequires welding and basic frame work; not a bolt-in replacement for users without welding equipment.\u003c\/li\u003e\n\u003cli\u003eInstructions are minimal in the listing, so installers should be comfortable with fuel tank removal\/reinstallation procedures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMountainpeak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment Years\u003c\/td\u003e\n\u003ctd\u003e1999-2006 and 2007-2014 Silverado\/Sierra 1500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Cab Types\u003c\/td\u003e\n\u003ctd\u003eReg Cab, Ext Cab, Crew Cab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHeavy duty steel, galvanized surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eRear spare tire support crossmember that supports upper left shock and rear of gas tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Parts\u003c\/td\u003e\n\u003ctd\u003eCrossmember plus two outer end plates and one right side inside mount plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor Silverado and Sierra 1500 owners who need a robust, long-lasting replacement crossmember, this Mountainpeak spare tire support plate is a practical choice. It delivers improved build quality and corrosion protection and restores proper support for the fuel tank and rear shock, offering good value when a welded repair or replacement is acceptable.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my 2005 Silverado?\u003c\/strong\u003e\u003cbr\u003eYes, the support plate lists fitment for 1999-2006 Chevrolet Silverado 1500 models, so it is compatible with a 2005 Silverado when installed as described.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this require welding to install?\u003c\/strong\u003e\u003cbr\u003eYes, the crossmember is designed to be set in place and welded solid; two outer end plates and an inside mount plate are provided loose to aid welding and alignment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the surface treated to resist rust?\u003c\/strong\u003e\u003cbr\u003eThe part has a galvanized surface which improves anti-rust properties and provides a better welding effect than untreated steel.\u003c\/p\u003e","brand":"Mountainpeak","offers":[{"title":"Default Title","offer_id":48613099274459,"sku":"B0BPPDS4FB","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41aOa-qzLEL._AC_SL1320.jpg?v=1778371673","url":"https:\/\/gearmusthave.com\/products\/rear-spare-tire-support-plate-shock-mount-crossmember-heavy-duty-fit","provider":"GearMustHave","version":"1.0","type":"link"}