{"product_id":"superpro-differential-mount-bushing-kit","title":"SuperPro Differential Mount Bushing Kit","description":"Suspension subframes form the connection between the suspension and the vehicle's body and passenger compartment. These are one of the key areas vehicle manufacturers use to tune the passenger comfort and isolation. This means in many vehicles the bushings that soft heavily-voided rubber is used. As this rubber ages and degrades it allows significant movement in the suspension mounting which impacts traction, handling and control. In more powerful vehicles the original soft rubber bushings can also contribute to wheel hop under acceleration and significant movement in changing loads or gear changes “ all of which sap performance and reduce passenger comfort. SuperPro repairs and enhances performance while retaining OEM levels of isolation through the use of superior materials and designs. Further; the performance of SuperPro's subframe bushings does not degrade overtime as the synthetic elastomer materials used are not compromised be exposure to the elements or the varying loads over a vehicle's life.\n\u003cp\u003eRestore stability and improve drivetrain control with the SuperPro Differential Mount Bushing Kit, part number SPF5178K. Designed for select Mercedes-Benz applications, this kit replaces aging, soft differential mount bushings that can allow excessive movement under acceleration, gear changes, and varying loads. Reduced movement helps support more consistent traction, handling, and control while maintaining a balanced level of ride isolation for everyday driving.\u003cbr\u003eSuperPro uses advanced synthetic elastomer materials and performance-focused designs to provide a durable alternative to conventional rubber bushings. Unlike heavily voided factory rubber that can soften and degrade with age, these bushings are engineered to resist deterioration from road conditions, changing loads, and long-term use. The result is improved differential positioning and more predictable drivetrain response without unnecessarily harsh cabin vibration.\u003cbr\u003eThis automotive bushing kit is designed for installation on select Mercedes-Benz 300SD, 350SDL, and 500SEL models from the listed application years. Confirm vehicle fitment before ordering to ensure compatibility. The SuperPro SPF5178K kit is a practical choice for restoring worn differential mounting performance and supporting dependable suspension and drivetrain operation.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eVehicle-specific differential mount bushing kit for select Mercedes-Benz applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eReplaces aging rubber bushings that allow excessive differential movement\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHelps improve traction, handling, drivetrain control, and load-change response\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSynthetic elastomer construction resists deterioration from environmental exposure and repeated loading\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaintains a balanced level of suspension and drivetrain isolation for improved driving comfort\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for select 1981–1992 Mercedes-Benz 300SD, 350SDL, and 500SEL models\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSuperPro part number SPF5178K\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nMercedes-Benz 300SD Base 1979\u003cbr\u003e\nMercedes-Benz 300SD Base 1980\u003cbr\u003e\nMercedes-Benz 300SD Base 1981\u003cbr\u003e\nMercedes-Benz 300SD Base 1982\u003cbr\u003e\nMercedes-Benz 300SD Base 1983\u003cbr\u003e\nMercedes-Benz 300SD Base 1984\u003cbr\u003e\nMercedes-Benz 300SD Base 1985\u003cbr\u003e\nMercedes-Benz 300SD Base 1992\u003cbr\u003e\nMercedes-Benz 300SDL Base 1986\u003cbr\u003e\nMercedes-Benz 300SDL Base 1987\u003cbr\u003e\nMercedes-Benz 300SE Base 1988\u003cbr\u003e\nMercedes-Benz 300SE Base 1989\u003cbr\u003e\nMercedes-Benz 300SE Base 1990\u003cbr\u003e\nMercedes-Benz 300SE Base 1991\u003cbr\u003e\nMercedes-Benz 300SE Base 1992\u003cbr\u003e\nMercedes-Benz 300SEL Base 1988\u003cbr\u003e\nMercedes-Benz 300SEL Base 1989\u003cbr\u003e\nMercedes-Benz 300SEL Base 1990\u003cbr\u003e\nMercedes-Benz 300SEL Base 1991\u003cbr\u003e\nMercedes-Benz 350SD Base 1991\u003cbr\u003e\nMercedes-Benz 350SDL Base 1990\u003cbr\u003e\nMercedes-Benz 350SDL Base 1991\u003cbr\u003e\nMercedes-Benz 380SE Base 1984\u003cbr\u003e\nMercedes-Benz 380SE Base 1985\u003cbr\u003e\nMercedes-Benz 380SEC Base 1982\u003cbr\u003e\nMercedes-Benz 380SEC Base 1983\u003cbr\u003e\nMercedes-Benz 380SEL Base 1981\u003cbr\u003e\nMercedes-Benz 380SEL Base 1982\u003cbr\u003e\nMercedes-Benz 380SEL Base 1983\u003cbr\u003e\nMercedes-Benz 380SLC Base 1981\u003cbr\u003e\nMercedes-Benz 420SEL Base 1986\u003cbr\u003e\nMercedes-Benz 420SEL Base 1987\u003cbr\u003e\nMercedes-Benz 420SEL Base 1988\u003cbr\u003e\nMercedes-Benz 420SEL Base 1989\u003cbr\u003e\nMercedes-Benz 420SEL Base 1990\u003cbr\u003e\nMercedes-Benz 420SEL Base 1991\u003cbr\u003e\nMercedes-Benz 450SEL Base 1980\u003cbr\u003e\nMercedes-Benz 500SEC Base 1984\u003cbr\u003e\nMercedes-Benz 500SEC Base 1985\u003cbr\u003e\nMercedes-Benz 500SEL Base 1984\u003cbr\u003e\nMercedes-Benz 500SEL Base 1985\u003cbr\u003e\nMercedes-Benz 560SEC Base 1986\u003cbr\u003e\nMercedes-Benz 560SEC Base 1987\u003cbr\u003e\nMercedes-Benz 560SEC Base 1988\u003cbr\u003e\nMercedes-Benz 560SEC Base 1989\u003cbr\u003e\nMercedes-Benz 560SEC Base 1990\u003cbr\u003e\nMercedes-Benz 560SEC Base 1991\u003cbr\u003e\nMercedes-Benz 560SEL Base 1986\u003cbr\u003e\nMercedes-Benz 560SEL Base 1987\u003cbr\u003e\nMercedes-Benz 560SEL Base 1988\u003cbr\u003e\nMercedes-Benz 560SEL Base 1989\u003cbr\u003e\nMercedes-Benz 560SEL Base 1990\u003cbr\u003e\nMercedes-Benz 560SEL Base 1991","brand":"Superpro","offers":[{"title":"Default Title","offer_id":67603201851708,"sku":"sprSPF5178K","price":209.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/3296883a2067a2bdef2405f6c18c8672.jpg?v=1790741514","url":"https:\/\/necycleshop.com\/products\/superpro-differential-mount-bushing-kit","provider":"NE Cycle Shop","version":"1.0","type":"link"}