{"title":"Leaf Spring Swap Kits","description":"\u003cp\u003e\u003cem\u003e[PLACEHOLDER — replace with RMM copy]\u003c\/em\u003e\u003c\/p\u003e","products":[{"product_id":"r2667-a","title":"U-Bolt Eliminator Perch Kit 2.75\"-3.00\" Axle Tube","description":"\u003ch3\u003eU-Bolt Eliminator Perch Kit 2.75\"-3.00\" Axle Tube\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEliminate U-bolts for a cleaner, stronger axle setup.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis U-bolt eliminator perch kit provides a superior alternative to traditional U-bolt mounting systems for leaf spring applications. Designed for serious off-road builds, it eliminates the weak points and potential failure modes associated with U-bolts while creating a more secure connection between your axle and leaf springs. Perfect for custom axle swaps, spring upgrades, or rebuilds where you want maximum strength and reliability.\u003c\/p\u003e\n\u003cp\u003eFits axle tubes ranging from 2.75\" to 3.00\" diameter. Constructed from heavy-duty steel with precision machining for exact fitment. The kit provides everything needed for a complete U-bolt elimination setup, allowing for a cleaner installation with improved clamping force and reduced maintenance compared to traditional U-bolt systems.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: PN2667-A\u003c\/li\u003e\n\u003cli\u003eFitment: Universal - 2.75\" to 3.00\" axle tube diameter\u003c\/li\u003e\n\u003cli\u003eMaterial: Heavy-duty steel construction with precision machining\u003c\/li\u003e\n\u003cli\u003eDimensions: 2.75\"-3.00\" axle tube compatibility\u003c\/li\u003e\n\u003cli\u003eDesign: Weld-on perch system eliminates U-bolt weak points\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2 - Spring perches machined for 2.75\"-3.00\" axle tubes\u003c\/li\u003e\n\u003cli\u003e4 - Mounting plates\u003c\/li\u003e\n\u003cli\u003eGrade 8 bolts, washers, and nuts for assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eNotes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWelding required for installation - professional installation recommended\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Riley Mountain Motorsports","offers":[{"title":"Default Title","offer_id":48363449811101,"sku":"PN2667-A-Kit-1","price":177.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/1989\/0333\/files\/r2667_u_bolt_eliminator_perch_kit_3_main.jpg?v=1780418621"},{"product_id":"r2666-a","title":"2+ Perch Kit 2.75\"-3\" Axle Tube","description":"\u003ch3\u003e2+ Perch Kit 2.75\"-3\" Axle Tube\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStretch your wheelbase without moving spring or shackle hangers.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLooking to stretch your wheelbase without relocating your spring or shackle hangers? The 2+ Perch Kit is the quick and effective solution. Designed to work with 2.75\" to 3\" axle tubes in spring-over setups, this kit lets you move your axle forward or back 1\" to 3\", giving you the added clearance and approach angle you need without cutting into your frame or hangers.\u003c\/p\u003e\n\u003cp\u003eWe’ve combined our proven U-bolt plate design with a reinforced spring perch that includes threaded wings made from 1\/2\" steel plate. That means solid thread engagement and reliable clamping force on every run. Whether you’re building a crawler, overland rig, or just want better geometry under load, this is the kind of no-nonsense upgrade that makes a difference on and off the trail.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: PN2666\u003c\/li\u003e\n\u003cli\u003eWheelbase Extension: Gain 1\"–3\" without modifying spring or shackle hangers\u003c\/li\u003e\n\u003cli\u003eAxle Tube Fitment: Designed for 2.75\"–3\" diameter axle tubes\u003c\/li\u003e\n\u003cli\u003eThreaded Wings: Built from 1\/2\" plate for superior thread retention\u003c\/li\u003e\n\u003cli\u003eApplication: For spring-over axle setups only\u003c\/li\u003e\n\u003cli\u003eFully welded construction for strength and ease of install\u003c\/li\u003e\n\u003cli\u003eHardware Included: (8) Grade 8 bolts – 4\" x 5\/8\"\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Tip\u003c\/h4\u003e\n\u003cp\u003eTest fit your bolts with your specific spring pack, cut them to proper length if needed, and torque to approximately 90 ft\/lbs using Loctite. Always double-check perch alignment before final weld-in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSold as a complete kit\u003c\/strong\u003e\u003c\/p\u003e","brand":"Riley Mountain Motorsports","offers":[{"title":"Default Title","offer_id":48363449843869,"sku":"PN2666-A-Kit-1","price":177.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/1989\/0333\/files\/R2666-2-plus-perch-kit-2-point-75-to-3-inches-axle-tube-image-1-ruffstuff-specialties.webp?v=1780418624"},{"product_id":"r2170","title":"U-Bolt Eliminator Perch Kit 3.25\" - 3.5\" Axle Tube","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch3\u003eU-Bolt Eliminator Perch Kit 3.25\" – 3.5\" Axle Tube\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior bolt-through design eliminates U-bolt failures.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis perch kit is built for spring-over-axle setups where failure isn’t an option. Instead of relying on U-bolts that can loosen or stretch, it uses grade 8 bolts threaded directly into 1\/2\" plate wings for maximum clamping force. The result is a stronger, more reliable setup that won’t back off under extreme off-road use.\u003c\/p\u003e\n\u003cp\u003eCompatible with 3.25\" to 3.5\" axle tubes and 2.5\" wide leaf springs, this kit is engineered for serious off-road builds that demand durability.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: PN2170\u003c\/li\u003e\n\u003cli\u003eFitment: 3.25\"–3.5\" axle tubes, spring-over applications\u003c\/li\u003e\n\u003cli\u003eMaterial: 1\/2\" plate wings, 3\/8\" thick leaf spring top plates\u003c\/li\u003e\n\u003cli\u003eDesign: Bolt-through system with threaded wings — no U-bolts\u003c\/li\u003e\n\u003cli\u003eDimensions: Fits 2.5\" wide leaf springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhat’s Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e(2) Spring perches with 1\/2\" plate wings\u003c\/li\u003e\n\u003cli\u003e(2) Heavy-duty 3\/8\" thick leaf spring top plates\u003c\/li\u003e\n\u003cli\u003e(8) Grade 8 bolts (4\" x 5\/8\") with washers and nuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eNotes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBolts can be cut to length for perfect fitment (test fit before final install)\u003c\/li\u003e\n\u003cli\u003eTorque to 90 ft-lbs with thread locker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Riley Mountain Motorsports","offers":[{"title":"Default Title","offer_id":48363462164637,"sku":"PN2170-Kit-1","price":177.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/1989\/0333\/files\/R2170-u-bolt-eliminator-perch-kit-3-point-25-to-3-point-5-inches-axle-tube-image-1-ruffstuff-specialties.webp?v=1780418954"},{"product_id":"pn1799","title":"Ideal 63\" Chevy Spring Swap Kit","description":"\u003ch3\u003eIdeal 63\" Chevy Spring Swap Kit\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA complete kit to mount 63\" Chevy leaf springs under your rig — customizable for your axle and shackle setup.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis kit includes everything needed to properly install 63\" Chevy rear springs, one of the most popular swaps for strength, flex, and ride quality. It provides spring plates, perches, hangers, shackles, bushings, U-bolts, and hardware, with options to fit different axle tube sizes and shackle lengths. The recommended 5\" shackles usually set the springs at 65–70 degrees to prevent inversion, but shorter or longer shackles can be chosen to match your axle and ride preference.\u003c\/p\u003e\n\u003cp\u003eAll brackets are built for a strong, weld-on installation. Urethane bushings are included and must be greased properly during assembly for long-term performance. By bundling all the key components into one package, this kit makes the 63\" Chevy spring swap straightforward, while giving flexibility to fine-tune your suspension setup.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Number: PN1799\u003c\/li\u003e\n\u003cli\u003eComplete kit to mount 63\" Chevy leaf springs\u003c\/li\u003e\n\u003cli\u003eIncludes brackets, shackles, bushings, U-bolts, and hardware\u003c\/li\u003e\n\u003cli\u003eCustomizable for axle tube size and shackle length\u003c\/li\u003e\n\u003cli\u003eWeld-on installation for durability\u003c\/li\u003e\n\u003cli\u003eImproves ride quality, strength, and articulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2 spring plates for chosen axle tube and 2.5\" wide springs\u003c\/li\u003e\n\u003cli\u003e2 spring perches for chosen axle tube and 2.5\" wide springs\u003c\/li\u003e\n\u003cli\u003e2 Chevy 63\" frenched leaf spring hangers\u003c\/li\u003e\n\u003cli\u003e1 pair Way Back shackle hangers with bushings\u003c\/li\u003e\n\u003cli\u003e4 U-bolts (10\" x 5\/8\" x chosen axle tube size) with hardware\u003c\/li\u003e\n\u003cli\u003e2 grade 8 bolts (9\/16\" x 4.5\") with Nylock nuts for spring hangers\u003c\/li\u003e\n\u003cli\u003e4 grade 8 bolts (9\/16\" x 5\") with Nylock nuts for shackle hangers\u003c\/li\u003e\n\u003cli\u003e4 shackles at chosen length, drilled for 9\/16\" (5\" standard)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eNote\u003c\/h4\u003e\n\u003cp\u003eWhen installing urethane bushings, remove all old rubber and shells, clean spring eyes and brackets, and apply grease to all contact surfaces (bushing I.D., O.D., flanges, and sleeves) before assembly.\u003c\/p\u003e","brand":"Riley Mountain Motorsports","offers":[{"title":"3\" Axle Tube \/ 4\" \/ No Shock 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Tube \/ 7\" \/ 1 Pair 3\" axle shock bracket","offer_id":48363473666205,"sku":"PN1799-Kit-47","price":301.95,"currency_code":"USD","in_stock":true},{"title":"3.5\" Axle Tube \/ 7\" \/ 1 Pair 3\" axle shock bracket \u0026 Bolts","offer_id":48363473698973,"sku":"PN1799-Kit-48","price":306.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/1989\/0333\/files\/R1799-ideal-63-inches-chevy-spring-swap-kit-image-1-ruffstuff-specialties.webp?v=1780419107"},{"product_id":"pn1119","title":"Deaver Long Travel Spring Under WIY Kit 2.5\" Springs","description":"\u003ch3\u003eDeaver Long Travel Spring Under WIY Kit\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003ePartial DIY Kit for 2.5\" Springs — Spring Under Setup\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis weld-it-yourself kit is built for spring-under setups using 2.5\" wide Deaver long travel leaf springs. It includes deep cradle-style bottom plates to protect U-bolt threads from rocks and trail damage, with extra length for trimming after installation.\u003c\/p\u003e\n\u003cp\u003eThe snug spring plates are designed to hold everything in place even if the center pin fails. Perches are slightly wider than standard for full spring support and better axle control. This is a partial DIY kit—welding is required and it covers one axle (driver and passenger sides).\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: PN1119\u003c\/li\u003e\n\u003cli\u003eWeld-it-yourself kit for 2.5\" wide long travel leaf springs\u003c\/li\u003e\n\u003cli\u003eCradle-style brackets offer U-bolt thread protection\u003c\/li\u003e\n\u003cli\u003ePerches available for 3\", 3.25\", or 3.5\" axle tube diameters\u003c\/li\u003e\n\u003cli\u003eDesigned to prevent spring movement even without center pin\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e(2) Spring Under Leaf Spring Plates for 2.5\" Springs\u003c\/li\u003e\n\u003cli\u003e(2) Perches for 3\", 3.25\", or 3.5\" Axle Tubes (2.5\" Wide)\u003c\/li\u003e\n\u003cli\u003e(4) 8\" Long U-Bolts with Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAvailable Kit Options\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAxle Tube Size: 3\" Axle Tube \/ 3.25\" Axle Tube \/ 3.5\" Axle Tube\u003c\/li\u003e\n\u003cli\u003eAdd 3\" Axle Mount Shock Bracket: No \/ Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Riley Mountain Motorsports","offers":[{"title":"3\" Axle Tube \/ NO","offer_id":48363500634269,"sku":"PN1119-Kit-1","price":162.8,"currency_code":"USD","in_stock":true},{"title":"3\" Axle Tube \/ Yes","offer_id":48363500667037,"sku":"PN1119-Kit-2","price":180.4,"currency_code":"USD","in_stock":true},{"title":"3.25\" Axle Tube \/ NO","offer_id":48363500699805,"sku":"PN1119-Kit-3","price":162.8,"currency_code":"USD","in_stock":true},{"title":"3.25\" Axle Tube \/ Yes","offer_id":48363500732573,"sku":"PN1119-Kit-4","price":180.4,"currency_code":"USD","in_stock":true},{"title":"3.5\" Axle Tube \/ NO","offer_id":48363500765341,"sku":"PN1119-Kit-5","price":162.8,"currency_code":"USD","in_stock":true},{"title":"3.5\" Axle Tube \/ Yes","offer_id":48363500798109,"sku":"PN1119-Kit-6","price":180.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/1989\/0333\/files\/R1119-deaver-long-travel-spring-under-wiy-kit-2-5-inch-springs-ruffstuff-specialties-1.webp?v=1780419635"},{"product_id":"pn1064","title":"63\" Chevy Spring Swap","description":"\u003ch3\u003e63\" Chevy Spring Swap Kit\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBudget-friendly flex and ride quality—done right the first time.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf you're ready to upgrade your rear suspension with more flex and better ride quality, the 63\" Chevy spring swap is hands-down one of the best budget moves you can make. These springs are cheap, easy to find at any yard, and love to flex. This kit gives you everything you need to mount them cleanly, securely, and with minimal hassle—just bring a welder and a free afternoon.\u003c\/p\u003e\n\u003cp\u003eWe've included our frenched Chevy spring hangers to get your springs sitting nice and low without sacrificing strength, and the matching wayback shackle hangers to give you the travel you're looking for. The shackles come drilled to 9\/16\" and in your choice of length, so you can fine-tune your setup right out of the gate. No more hacking off stock hangers later—do it right the first time and enjoy the ride.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: PN1064\u003c\/li\u003e\n\u003cli\u003ePerfect for installing 63\" Chevy springs in a variety of rigs\u003c\/li\u003e\n\u003cli\u003eFrenched spring hangers lower ride height while adding strength\u003c\/li\u003e\n\u003cli\u003eWayback shackle hangers give you proper geometry and extra flex\u003c\/li\u003e\n\u003cli\u003eShackles drilled to 9\/16\" with your choice of length (standard is 5\")\u003c\/li\u003e\n\u003cli\u003eGrade 8 hardware included\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhat's Included in This Kit\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2 - 63\" Chevy Frenched Leaf Spring Hangers (unwelded)\u003c\/li\u003e\n\u003cli\u003e1 - Pair Wayback Shackle Hangers with Poly Bushings\u003c\/li\u003e\n\u003cli\u003e4 - 9\/16\" x 5\" Grade 8 Bolts with Nylock Nuts\u003c\/li\u003e\n\u003cli\u003e2 - 9\/16\" x 4.5\" Grade 8 Bolts with Nylock Nuts\u003c\/li\u003e\n\u003cli\u003e4 - Shackles (your choice of length, 5\" is standard)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSold as a complete kit—springs not included\u003c\/strong\u003e\u003c\/p\u003e","brand":"Riley Mountain Motorsports","offers":[{"title":"4\"","offer_id":48363503812765,"sku":"PN1064-Kit-1","price":220.0,"currency_code":"USD","in_stock":true},{"title":"5\"","offer_id":48363503845533,"sku":"PN1064-Kit-2","price":220.0,"currency_code":"USD","in_stock":true},{"title":"6\"","offer_id":48363503878301,"sku":"PN1064-Kit-3","price":220.0,"currency_code":"USD","in_stock":true},{"title":"7\"","offer_id":48363503911069,"sku":"PN1064-Kit-4","price":220.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/1989\/0333\/files\/R1064-63-inches-chevy-spring-swap-image-1-ruffstuff-specialties.webp?v=1780419687"},{"product_id":"pn1029","title":"2+ Perch Kit 3.25\"-3.5\" Axle Tube","description":"\u003ch3\u003e2+ Perch Kit 3.25\"-3.5\" Axle Tube\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eExtend Your Wheelbase Without Touching Your Spring or Shackle Hangers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 2+ Perch Kit is a smart solution for anyone looking to shift their axle 1\"–3\" forward or back without the hassle of relocating spring or shackle hangers. Built with 1\/2\" thick threaded wings and our proven U-bolt plate design, this setup ensures strength, simplicity, and precision alignment on spring-over applications. The extended slots in the perch allow you to dial in the exact wheelbase you're after for better clearance, handling, and performance on- or off-road.\u003c\/p\u003e\n\u003cp\u003eThis version is specifically designed for axles with 3.25\"–3.5\" axle tubes, commonly found on beefier 1-ton applications. It's an ideal fit for anyone upgrading to a heavy-duty rear end and needing a clean, weld-on perch solution that adds stretch without adding unnecessary complexity.\u003c\/p\u003e\n\u003cp\u003eWhether you're building for rock crawling, towing, or high-speed desert work, the 2+ Perch Kit helps you fine-tune your wheelbase while maintaining rock-solid spring retention.\u003c\/p\u003e\n\u003ch4\u003eKey Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: PN1029\u003c\/li\u003e\n\u003cli\u003eWheelbase Extension: Gain 1\"–3\" without relocating hangers\u003c\/li\u003e\n\u003cli\u003eAxle Tube Fitment: Designed for 3.25\"–3.5\" diameter axle tubes\u003c\/li\u003e\n\u003cli\u003eApplication: For spring-over setups only\u003c\/li\u003e\n\u003cli\u003eThreaded Wings: 1\/2\" thick plates with tapped 5\/8\"-18 threads for secure bolt-in adjustment\u003c\/li\u003e\n\u003cli\u003eFully welded and ready to install\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKit Includes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e(2) Spring Perches – Fits 3.25\"–3.5\" axle tubes, 2.5\" spring width\u003c\/li\u003e\n\u003cli\u003e(2) Threaded tabs (1\/2\" plate) for bolt adjustment\u003c\/li\u003e\n\u003cli\u003e(2) U-bolt plates for 2.5\" springs\u003c\/li\u003e\n\u003cli\u003e(8) 5\/8\"-18 x 4\" Grade 8 bolts\u003c\/li\u003e\n\u003cli\u003e(8) Hardened washers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Tip:\u003c\/strong\u003e Test-fit the bolts to your spring pack before trimming. Torque to ~90 ft\/lbs and use Loctite to prevent loosening. Designed exclusively for spring-over applications.\u003c\/p\u003e\n\u003cp\u003eIf you're running larger axles and want the added adjustability of a stretch without cutting up your mounts, this kit is your ticket to smarter, stronger suspension geometry.\u003c\/p\u003e","brand":"Riley Mountain Motorsports","offers":[{"title":"Default Title","offer_id":48363505483933,"sku":"PN1029-Kit-1","price":177.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/1989\/0333\/files\/R1029-2-plus-perch-kit-3-point-25-to-3-point-5-inches-axle-tube-image-2-ruffstuff-specialties.webp?v=1780419715"}],"url":"https:\/\/rileymountainmotorsports.com\/collections\/leaf-spring-swap-kits.oembed","provider":"Riley mountain motorsports","version":"1.0","type":"link"}