{"product_id":"u-bolt-kit-1350-spicer","title":"Mark Williams 1350 Series U-Bolt Kit — Fits Spicer Style Yokes","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Mark Williams\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eMark Williams engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Mark Williams lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/U5XFXHMWIHQ\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eDurable U-Bolt Security for Your Drivetrain\u003c\/h2\u003e\u003cp\u003eNever compromise on safety when it comes to your driveshaft. The Mark Williams 1350 Series U-Bolt Kit is the industry standard for securing your universal joints, providing the peace of mind you need during high-speed runs. These kits are engineered to hold your U-joints firmly in place, preventing vibration and catastrophic failure under heavy load. Featuring a rugged black oxide finish, these bolts are designed to resist corrosion and maintain their clamping force over time.\u003c\/p\u003e\u003ch3\u003eKit Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 1350 Series compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Oxide for corrosion resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Nuts and U-bolts for a complete installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Spicer style yokes\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eProperly securing your U-joints is essential for maintaining a balanced and efficient drivetrain. This kit replaces worn or stretched hardware, ensuring that your driveshaft remains centered and secure. The high-strength steel construction is built to handle the extreme torque loads of racing environments, making it a must-have for any performance vehicle build. Don't let a simple fastener failure ruin your day at the track; invest in the reliability of Mark Williams hardware. For all your drivetrain fastener needs, look to the experts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Mark Williams products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/quick-rel-steering-hub\" style=\"color:#0066cc;text-decoration:none;\"\u003eMark Williams Quick Release Steering Hub 3\/4in Shaft — 4-Bolt Wheel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gt-5-bolt-quick-release\" style=\"color:#0066cc;text-decoration:none;\"\u003eMark Williams GT 5-Bolt Quick Release - Grant GT 3\/4in Shaft — Black Anodized Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/q-r-steering-hub-6-hole-sparco-momo-str-wheels\" style=\"color:#0066cc;text-decoration:none;\"\u003eMark Williams SFI 42.1 Quick Release Hub — Fits Sparco\/Momo 6-Hole\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gm-8-5-10-pinion-yoke\" style=\"color:#0066cc;text-decoration:none;\"\u003eMark Williams 1350 U-Joint Pinion Yoke — GM 8.5\" 10-Bolt, 30 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/th400-t-10-trans-yoke\" style=\"color:#0066cc;text-decoration:none;\"\u003eMark Williams TH400 T-10 Slip Yoke 32 Spline — 1350 U-Joint\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Mark Williams 1350 Series U-Bolt Kit \\u2014 Fits Spicer Style Yokes\",\"description\":\"Secure your driveshaft with the Mark Williams 1350 series U-bolt kit. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Mark Williams?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Mark Williams 1350 Series U-Bolt Kit \\u2014 Fits Spicer Style Yokes?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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