{"product_id":"empi-adjustable-irs-spring-plates-1-1-4-collar-off-road-17-2672-0","title":"EMPI Adjustable IRS Spring Plates — 1-1\/4\" Collar, Off-Road, Pair | VW IRS 21-3\/4\" Bar (17-2672-0)","description":"\u003ch2\u003e\u003cb\u003eEMPI Adjustable IRS Spring Plates — 1-1\/4\" Collar, Off-Road (Pair)\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003eEMPI adjustable IRS spring plates with a \u003cb\u003e1-1\/4\" collar\u003c\/b\u003e — engineered for off-road and high-performance VW IRS rear suspension using the standard \u003cb\u003e21-3\/4\" torsion bar\u003c\/b\u003e. They allow full, infinite rear ride-height adjustment without disassembling the torsion housing. Sold as a pair. EMPI part #17-2672-0.\u003c\/p\u003e\u003cp\u003eThe spring plates are the lever arms that connect the IRS torsion bars to the rear trailing arms. On a factory VW, ride height is fixed by how the splined torsion bar engages the plate. These \u003cb\u003eprecision-machined plates add a built-in adjuster\u003c\/b\u003e: loosen it, change the angle, retighten — and rear ride height moves in continuous, fine increments.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVW Beetle (Type 1, IRS):\u003c\/b\u003e 1968–1979\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOff-road builds:\u003c\/b\u003e Baja Bug, sand rail, dune buggy with IRS rear (all years)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eWhy Choose EMPI?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eEMPI replaces the fixed factory plate with a precision-machined adjuster, giving off-road and performance IRS builders continuous, infinite ride-height control instead of discrete spline positions.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eInfinite adjustment:\u003c\/b\u003e Continuous ride-height change without pulling the torsion bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOff-road tuned:\u003c\/b\u003e Designed for the travel demands of Baja and sand rail builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision-machined:\u003c\/b\u003e Built-in adjuster for repeatable stance changes\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMatched pair:\u003c\/b\u003e Left and right supplied together\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCollar size:\u003c\/b\u003e 1-1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTorsion bar length:\u003c\/b\u003e 21-3\/4 inch (standard IRS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Off-road \/ high-performance IRS suspension\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustment:\u003c\/b\u003e Continuous, infinite within adjustment range\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSold as:\u003c\/b\u003e Pair\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart number:\u003c\/b\u003e 17-2672-0\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHow do I know what collar size I have?\u003c\/b\u003e Measure the diameter of the collar at the outboard end of the torsion housing — where the spring plate bolts up. Common sizes are 1-1\/4\", 4-1\/4\", and 6-1\/8\". Match to your specific application before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWill I need an alignment after installing?\u003c\/b\u003e Yes, absolutely. Changing rear ride height changes rear camber and toe. After any adjustment, get the car aligned — without it, you'll see rapid tire wear and unpredictable handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCan I install these myself?\u003c\/b\u003e Possible but moderately involved. The torsion housing has to be opened, the existing spring plates removed, the new plates installed, the torsion bars re-clocked to the new plate engagement, and everything reassembled. Plan on 2-4 hours for someone familiar with VW rear suspension. If you've never been in the rear suspension before, a shop install is reasonable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHow much adjustment range do they provide?\u003c\/b\u003e Continuous adjustment within the mechanical range — typically enough to cover 2-4\" of ride height variation. Combined with appropriate torsion bar clocking, total adjustment range is even larger.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAre these street legal?\u003c\/b\u003e Yes, fully street legal in standard installation. Some extreme adjustment positions may put alignment outside factory spec — keep alignment within reasonable bounds for street use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat's the difference between off-road and street versions?\u003c\/b\u003e Different versions have different geometry and adjustment ranges tuned for the intended application. The 17-2672-0 off-road version is designed for the suspension travel demands of Baja, sand rail, and similar builds.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eShop more parts for your build: \u003ca href=\"\/collections\/dune-buggy\"\u003eDune Buggy\u003c\/a\u003e \u003ca href=\"\/collections\/vw-beetle\"\u003eVW Beetle\u003c\/a\u003e \u003ca href=\"\/collections\/suspension\"\u003eSuspension\u003c\/a\u003e\u003c\/p\u003e","brand":"EMPI","offers":[{"title":"Default Title","offer_id":44899665051763,"sku":"17-2672-0","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/17-2672-0-scaled-500x333.jpg?v=1777272968","url":"https:\/\/www.washburnsmetal.com\/products\/empi-adjustable-irs-spring-plates-1-1-4-collar-off-road-17-2672-0","provider":"Washburn's Metal","version":"1.0","type":"link"}