{"product_id":"power-brake-booster-conversion-kit-for-87-90-jeep-wrangler-yj-rt31017","title":"Power Brake Booster Conversion Kit for 87-90 Jeep Wrangler YJ | RT31017","description":"\n\u003cdiv style=\"font-family:Arial,Helvetica,sans-serif;color:#222;line-height:1.55;max-width:900px;margin:0 auto;\"\u003e\n  \u003cdiv style=\"border:1px solid #d8d8d8;border-radius:6px;overflow:hidden;\"\u003e\n\n    \u003cdiv style=\"background:#b91c1c;color:#fff;padding:18px 22px;\"\u003e\n      \u003ch2 style=\"margin:0;font-size:22px;color:#fff;\"\u003eHeavy Duty Power Brake Booster Conversion Kit\u003c\/h2\u003e\n      \u003cp style=\"margin:6px 0 0;font-size:14px;color:#fff;\"\u003e1987-1990 Jeep Wrangler YJ | Aftermarket Axles | Without ABS | RT31017\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding:22px;\"\u003e\n\n      \u003ch3 style=\"color:#b91c1c;margin:0 0 10px;\"\u003eProduct Overview\u003c\/h3\u003e\n\n      \u003cp\u003eUpgrade the braking system on your 1987-1990 Jeep Wrangler YJ with this \u003cstrong\u003eHeavy Duty Power Brake Booster Conversion Kit\u003c\/strong\u003e, specifically designed for vehicles equipped with \u003cstrong\u003eaftermarket axles and without ABS\u003c\/strong\u003e. The kit combines an \u003cstrong\u003e8-inch dual diaphragm power brake booster\u003c\/strong\u003e with a \u003cstrong\u003e1-1\/8-inch bore master cylinder\u003c\/strong\u003e for the specified upgraded braking system application.\u003c\/p\u003e\n\n      \u003cp\u003eThe larger bore master cylinder is designed for axle upgrades utilizing larger brake calipers. This configuration is intended for modified Jeep Wrangler YJ braking systems where aftermarket axles require the specified master cylinder bore, distinguishing it from smaller bore configurations designed for different brake system requirements.\u003c\/p\u003e\n\n      \u003cp\u003eThe kit includes a zinc-coated brake booster, master cylinder, bench bleeding kit, and installation instructions. It is intended for replacing the existing brake booster and master cylinder as part of the specified power brake conversion.\u003c\/p\u003e\n\n      \u003cdiv style=\"background:#f6f7f8;border:1px solid #e2e4e7;border-radius:6px;padding:16px;margin:18px 0;\"\u003e\n        \u003ch3 style=\"color:#b91c1c;margin:0 0 10px;\"\u003eVehicle Compatibility\u003c\/h3\u003e\n\n        \u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong\u003eJeep Wrangler Applications\u003c\/strong\u003e\u003c\/p\u003e\n        \u003cul style=\"margin:0 0 10px;padding-left:20px;\"\u003e\n          \u003cli\u003e\n\u003cstrong\u003e1987-1990 Jeep Wrangler (YJ)\u003c\/strong\u003e - Without ABS; equipped with aftermarket axles\u003c\/li\u003e\n        \u003c\/ul\u003e\n\n        \u003cp style=\"font-size:13px;color:#555;margin-bottom:0;\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This kit is specifically identified for 1987-1990 Wrangler YJ models without ABS and with aftermarket axles. Both requirements must be satisfied for the listed application. Verify the existing axle configuration and braking system before ordering.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003ch3 style=\"color:#b91c1c;\"\u003eProduct Highlights\u003c\/h3\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHeavy Duty Dual Diaphragm Booster:\u003c\/strong\u003e Features an 8-inch power brake booster for the specified conversion application.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1-1\/8-Inch Bore Master Cylinder:\u003c\/strong\u003e Designed for upgraded axle configurations utilizing larger brake calipers.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAftermarket Axle Application:\u003c\/strong\u003e Specifically intended for Wrangler YJ vehicles equipped with aftermarket axles.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eZinc-Coated Brake Booster:\u003c\/strong\u003e Includes a brake booster with a zinc-coated finish.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSpecified Conversion Components:\u003c\/strong\u003e Supplied with the brake booster, master cylinder, bench bleeding kit, and installation instructions.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cdiv style=\"background:#f6f7f8;border:1px solid #e2e4e7;border-radius:6px;padding:16px;margin:18px 0;\"\u003e\n        \u003ch3 style=\"color:#b91c1c;margin:0 0 10px;\"\u003eWhat's Included\u003c\/h3\u003e\n        \u003cul style=\"margin:0;padding-left:20px;\"\u003e\n          \u003cli\u003eHeavy Duty 8-Inch Dual Diaphragm Brake Booster\u003c\/li\u003e\n          \u003cli\u003e1-1\/8-Inch Bore Master Cylinder\u003c\/li\u003e\n          \u003cli\u003eBench Bleeding Kit\u003c\/li\u003e\n          \u003cli\u003eInstallation Instructions\u003c\/li\u003e\n        \u003c\/ul\u003e\n        \u003cp style=\"font-size:13px;color:#555;margin-bottom:0;\"\u003eKit contents are based on the supplied product information. Additional mounting hardware, brake lines, fittings, or other brake system components are not specified.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"background:#f6f7f8;border:1px solid #e2e4e7;border-radius:6px;padding:16px;margin:18px 0;\"\u003e\n        \u003ch3 style=\"color:#b91c1c;margin:0 0 10px;\"\u003eProduct-Specific Technical Details\u003c\/h3\u003e\n        \u003cul style=\"margin:0;padding-left:20px;\"\u003e\n          \u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Power Brake Booster Conversion Kit\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eBrake Booster Type:\u003c\/strong\u003e Heavy Duty Dual Diaphragm\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eBrake Booster Diameter:\u003c\/strong\u003e 8 Inches\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eMaster Cylinder Bore:\u003c\/strong\u003e 1-1\/8 Inches\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eBrake Booster Finish:\u003c\/strong\u003e Zinc-Coated\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eIntended Axle Configuration:\u003c\/strong\u003e Aftermarket Axles\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eMaster Cylinder Application:\u003c\/strong\u003e Upgraded Axles with Larger Brake Calipers\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eABS Compatibility:\u003c\/strong\u003e Without ABS\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eVehicle Application:\u003c\/strong\u003e 1987-1990 Jeep Wrangler YJ\u003c\/li\u003e\n          \u003cli\u003e\n\u003cstrong\u003eProduct Reference:\u003c\/strong\u003e RT31017\u003c\/li\u003e\n        \u003c\/ul\u003e\n        \u003cp style=\"font-size:13px;color:#555;margin-bottom:0;\"\u003eAdditional booster dimensions, hydraulic specifications, brake line connection details, and mounting hardware requirements have not been provided.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"background:#fff8e8;border:1px solid #ead9ad;border-radius:6px;padding:16px;margin:18px 0;\"\u003e\n        \u003ch3 style=\"color:#b91c1c;margin:0 0 8px;\"\u003eInstallation \u0026amp; Fitment Notes\u003c\/h3\u003e\n        \u003cul style=\"margin:0 0 10px;padding-left:20px;\"\u003e\n          \u003cli\u003eConfirm the vehicle is a 1987-1990 Jeep Wrangler YJ.\u003c\/li\u003e\n          \u003cli\u003eVerify that the vehicle is equipped without ABS.\u003c\/li\u003e\n          \u003cli\u003eConfirm the vehicle has aftermarket axles and that the 1-1\/8-inch bore master cylinder is appropriate for the installed braking system.\u003c\/li\u003e\n          \u003cli\u003eThe larger bore master cylinder is intended for upgraded axle configurations utilizing larger brake calipers.\u003c\/li\u003e\n          \u003cli\u003eInstallation involves replacing the existing brake booster and master cylinder.\u003c\/li\u003e\n          \u003cli\u003eUse the included bench bleeding kit and follow the supplied installation instructions and applicable vehicle service procedures.\u003c\/li\u003e\n        \u003c\/ul\u003e\n        \u003cp style=\"font-size:13px;color:#555;margin-bottom:0;\"\u003eBrake system modifications and aftermarket axle configurations may vary. Confirm compatibility of the existing brake components, hydraulic connections, and mounting arrangement before beginning installation.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003ch3 style=\"color:#b91c1c;\"\u003eProduct Reference\u003c\/h3\u003e\n      \u003cdiv style=\"background:#f6f7f8;border-left:4px solid #b91c1c;padding:12px 16px;margin:0 0 18px;\"\u003e\n        \u003cp style=\"margin:0;\"\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e RT31017\u003c\/p\u003e\n        \u003cp style=\"margin:6px 0 0;\"\u003e\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 8-Inch Dual Diaphragm Brake Booster with 1-1\/8-Inch Bore Master Cylinder\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cp style=\"font-size:13px;color:#555;\"\u003eThe part number above identifies the specified brake booster conversion kit. Verify the booster configuration, master cylinder bore, and vehicle application before purchasing.\u003c\/p\u003e\n\n      \u003cdiv style=\"background:#f6f7f8;border-left:4px solid #b91c1c;padding:14px 16px;margin:18px 0;\"\u003e\n        \u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eFitment Reminder\u003c\/strong\u003e\u003cbr\u003eThis kit is designed for 1987-1990 Jeep Wrangler YJ models without ABS and equipped with aftermarket axles. Confirm the required 1-1\/8-inch master cylinder bore, brake caliper configuration, and existing braking system compatibility before installation.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cp style=\"font-size:13px;color:#555;\"\u003ePlease verify vehicle model year, non-ABS configuration, aftermarket axle application, master cylinder bore requirements, and supplied product reference before ordering.\u003c\/p\u003e\n\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Crown Automotive","offers":[{"title":"Default Title","offer_id":67889609277507,"sku":null,"price":647.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/4278\/0227\/files\/RT31017.png?v=1793900202","url":"https:\/\/extoffroad.com\/products\/power-brake-booster-conversion-kit-for-87-90-jeep-wrangler-yj-rt31017","provider":"EXT Offroad","version":"1.0","type":"link"}