{"title":"Wiring \u0026 Harnesses","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eEngineer-designed wiring and harnesses for classic Chevy and GMC trucks. The cluster backlight harness kills the flickering dash lights that come from 40-year-old corroded factory connectors, tested in Jacob's own '86. Simple hardwired installs, basic hand tools.\u003c\/p\u003e","products":[{"product_id":"73-87-cluster-backlight-harness","title":"1973-1987(88) Chevy Pickup Cluster Backlight Harness","description":"\u003cp data-end=\"179\" data-start=\"0\"\u003eSay goodbye to flickering dash lights and unreliable factory connections—this hard-wired gauge backlight upgrade delivers consistent, dependable illumination every time you drive.\u003c\/p\u003e\n\u003cp data-end=\"556\" data-start=\"181\"\u003eDesigned as a direct replacement for the original 1\/4-turn bulb connectors, this kit eliminates one of the most common failure points in classic truck dashboards: worn, inconsistent factory receptacles. Instead of constantly cleaning contacts or bending fragile copper tabs, you’ll get a solid, hard-wired connection that keeps your gauge cluster fully lit and looking sharp.\u003c\/p\u003e\n\u003cp data-end=\"869\" data-start=\"558\"\u003eBy integrating directly into the HVAC wiring circuit, this solution provides stable power to your gauge backlights without interfering with heater or climate control operation. The result is a cleaner install, improved electrical reliability, and a dash that performs like it should—every time you turn the key.\u003c\/p\u003e\n\u003cp data-end=\"899\" data-start=\"871\"\u003e\u003cstrong data-end=\"899\" data-start=\"871\"\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1382\" data-start=\"900\"\u003e\n\u003cli data-end=\"1003\" data-start=\"900\" data-section-id=\"1a6kylr\"\u003e\n\u003cstrong data-end=\"929\" data-start=\"902\"\u003eHard-wired reliability:\u003c\/strong\u003e Eliminates intermittent connections caused by worn factory bulb sockets\u003c\/li\u003e\n\u003cli data-end=\"1079\" data-start=\"1004\" data-section-id=\"12ssghe\"\u003e\n\u003cstrong data-end=\"1040\" data-start=\"1006\"\u003eConsistent gauge illumination:\u003c\/strong\u003e No more random dash lights going out\u003c\/li\u003e\n\u003cli data-end=\"1182\" data-start=\"1080\" data-section-id=\"1qdspqo\"\u003e\n\u003cstrong data-end=\"1112\" data-start=\"1082\"\u003eDirect replacement design:\u003c\/strong\u003e Upgrades factory 1\/4-turn connectors with a modern, secure solution\u003c\/li\u003e\n\u003cli data-end=\"1273\" data-start=\"1183\" data-section-id=\"pv6m1u\"\u003e\n\u003cstrong data-end=\"1208\" data-start=\"1185\"\u003eSimple integration:\u003c\/strong\u003e Ties into existing HVAC wiring without affecting functionality\u003c\/li\u003e\n\u003cli data-end=\"1382\" data-start=\"1274\" data-section-id=\"84nnyb\"\u003e\n\u003cstrong data-end=\"1314\" data-start=\"1276\"\u003eIdeal for restorations \u0026amp; upgrades:\u003c\/strong\u003e Perfect for classic truck owners seeking dependable dash lighting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1634\" data-start=\"1384\"\u003eUpgrade your gauge lighting with a solution built for long-term performance. Whether you're restoring a classic or improving daily drivability, this hard-wired gauge backlight kit ensures your dashboard stays fully illuminated—just like it should.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1634\" data-start=\"1384\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"display: inline-block; background-color: #ffc107; color: black; padding: 10px 20px; text-decoration: none; border-radius: 5px;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/3138\/1489\/files\/CR-DI-0003_-_1973-1991_Harness_Instructions_v2.pdf?v=1778000452\"\u003eDownload Installation Manual PDF\u003c\/a\u003e\u003c\/p\u003e","brand":"Classic Revolution","offers":[{"title":"Default Title","offer_id":45557438316785,"sku":null,"price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/3138\/1489\/files\/20241209_190615.jpg?v=1734318270"},{"product_id":"5-8-quarter-turn-bulb-harness","title":"1957-1988 GM 5\/8\" Quarter Turn Bulb Harness, Single","description":"\u003cp data-end=\"125\" data-start=\"0\"\u003eUpgrade your interior lighting with a dependable, OEM-style solution designed to fit a wide range of classic GM applications.\u003c\/p\u003e\n\u003cp data-end=\"550\" data-start=\"127\"\u003eThis \u003cstrong data-end=\"172\" data-start=\"132\"\u003e5\/8\" quarter-turn single bulb holder\u003c\/strong\u003e is the perfect replacement for worn or missing factory sockets, restoring clean, consistent backlighting to your dash and controls. It’s specifically designed to fit the rectangular information block found in select trucks, while also serving as a direct fit for heater control backlight locations—making it a versatile and practical upgrade for restoration or repair projects.\u003c\/p\u003e\n\u003cp data-end=\"886\" data-start=\"552\"\u003eCompatible with many classic GM pickups from 1957–1988, this bulb holder is an ideal choice for enthusiasts looking to maintain factory functionality while improving reliability. Whether you're refreshing a vintage dashboard or solving dim\/intermittent lighting issues, this component delivers a secure fit and dependable performance.\u003c\/p\u003e\n\u003cp data-end=\"916\" data-start=\"888\"\u003e\u003cstrong data-end=\"916\" data-start=\"888\"\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1393\" data-start=\"917\"\u003e\n\u003cli data-end=\"979\" data-start=\"917\" data-section-id=\"23nqdo\"\u003e\n\u003cstrong data-end=\"947\" data-start=\"919\"\u003e5\/8\" quarter-turn design\u003c\/strong\u003e for easy, secure installation\u003c\/li\u003e\n\u003cli data-end=\"1069\" data-start=\"980\" data-section-id=\"6ccwrp\"\u003e\n\u003cstrong data-end=\"1008\" data-start=\"982\"\u003eDirect-fit replacement\u003c\/strong\u003e for rectangular info block and heater control backlighting\u003c\/li\u003e\n\u003cli data-end=\"1162\" data-start=\"1070\" data-section-id=\"2kl6bd\"\u003e\n\u003cstrong data-end=\"1094\" data-start=\"1072\"\u003eWide compatibility\u003c\/strong\u003e with many GM trucks (1957–1988) and potentially other GM vehicles\u003c\/li\u003e\n\u003cli data-end=\"1253\" data-start=\"1163\" data-section-id=\"1bez7af\"\u003e\n\u003cstrong data-end=\"1199\" data-start=\"1165\"\u003eSupports factory 194 bulb size\u003c\/strong\u003e (compatible with both incandescent and LED options)\u003c\/li\u003e\n\u003cli data-end=\"1338\" data-start=\"1254\" data-section-id=\"xn6tmx\"\u003e\n\u003cstrong data-end=\"1288\" data-start=\"1256\"\u003eRestores proper illumination\u003c\/strong\u003e for improved visibility and interior aesthetics\u003c\/li\u003e\n\u003cli data-end=\"1393\" data-start=\"1339\" data-section-id=\"1xzh4qb\"\u003e\u003cstrong data-end=\"1391\" data-start=\"1341\"\u003ePerfect for restorations, repairs, or upgrades\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1526\" data-start=\"1395\"\u003eBring your classic GM interior back to life with a simple, reliable lighting solution built to match original fitment and function.\u003c\/p\u003e","brand":"Classic Revolution","offers":[{"title":"Default Title","offer_id":45557438382321,"sku":null,"price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/3138\/1489\/files\/Thumbnail_2.jpg?v=1734491521"},{"product_id":"89-91-chevy-pickup-cluster-backlight-harness","title":"1989-1991 Chevy Pickup, Blazer, Suburban Cluster Backlight Harness","description":"\u003cp data-end=\"179\" data-start=\"0\"\u003eSay goodbye to flickering dash lights and unreliable factory connections—this hard-wired gauge backlight upgrade delivers consistent, dependable illumination every time you drive.\u003c\/p\u003e\n\u003cp data-end=\"556\" data-start=\"181\"\u003eDesigned as a direct replacement for the original 1\/4-turn bulb connectors, this kit eliminates one of the most common failure points in classic truck dashboards: worn, inconsistent factory receptacles. Instead of constantly cleaning contacts or bending fragile copper tabs, you’ll get a solid, hard-wired connection that keeps your gauge cluster fully lit and looking sharp.\u003c\/p\u003e\n\u003cp data-end=\"869\" data-start=\"558\"\u003eBy integrating directly into the HVAC wiring circuit, this solution provides stable power to your gauge backlights without interfering with heater or climate control operation. The result is a cleaner install, improved electrical reliability, and a dash that performs like it should—every time you turn the key.\u003c\/p\u003e\n\u003cp data-end=\"899\" data-start=\"871\"\u003e\u003cstrong data-end=\"899\" data-start=\"871\"\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1382\" data-start=\"900\"\u003e\n\u003cli data-end=\"1003\" data-start=\"900\" data-section-id=\"1a6kylr\"\u003e\n\u003cstrong data-end=\"929\" data-start=\"902\"\u003eHard-wired reliability:\u003c\/strong\u003e Eliminates intermittent connections caused by worn factory bulb sockets\u003c\/li\u003e\n\u003cli data-end=\"1079\" data-start=\"1004\" data-section-id=\"12ssghe\"\u003e\n\u003cstrong data-end=\"1040\" data-start=\"1006\"\u003eConsistent gauge illumination:\u003c\/strong\u003e No more random dash lights going out\u003c\/li\u003e\n\u003cli data-end=\"1182\" data-start=\"1080\" data-section-id=\"1qdspqo\"\u003e\n\u003cstrong data-end=\"1112\" data-start=\"1082\"\u003eDirect replacement design:\u003c\/strong\u003e Upgrades factory 1\/4-turn connectors with a modern, secure solution\u003c\/li\u003e\n\u003cli data-end=\"1273\" data-start=\"1183\" data-section-id=\"pv6m1u\"\u003e\n\u003cstrong data-end=\"1208\" data-start=\"1185\"\u003eSimple integration:\u003c\/strong\u003e Ties into existing HVAC wiring without affecting functionality\u003c\/li\u003e\n\u003cli data-end=\"1382\" data-start=\"1274\" data-section-id=\"84nnyb\"\u003e\n\u003cstrong data-end=\"1314\" data-start=\"1276\"\u003eIdeal for restorations \u0026amp; upgrades:\u003c\/strong\u003e Perfect for classic truck owners seeking dependable dash lighting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1634\" data-start=\"1384\"\u003eUpgrade your gauge lighting with a solution built for long-term performance. Whether you're restoring a classic or improving daily drivability, this hard-wired gauge backlight kit ensures your dashboard stays fully illuminated—just like it should.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1634\" data-start=\"1384\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"display: inline-block; background-color: #ffc107; color: black; padding: 10px 20px; text-decoration: none; border-radius: 5px;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/3138\/1489\/files\/CR-DI-0003_-_1973-1991_Harness_Instructions_v2.pdf?v=1778000452\"\u003eDownload Installation Manual PDF\u003c\/a\u003e\u003c\/p\u003e","brand":"Classic Revolution","offers":[{"title":"Default Title","offer_id":48138193764593,"sku":null,"price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/3138\/1489\/files\/20241209_190615.jpg?v=1734318270"},{"product_id":"universal-1-2-quarter-turn-bulb-harness-single","title":"Universal 1\/2\" (13mm) Quarter Turn Bulb Harness, Single","description":"\u003cp data-start=\"0\" data-end=\"125\"\u003eUpgrade your interior lighting with a dependable, OEM-style solution designed to fit a wide range of classic GM, Mopar, Ford, and Jeep applications.  This is probably the most commonly used bulb holder. \u003c\/p\u003e\n\u003cp data-start=\"127\" data-end=\"550\"\u003eThis \u003cstrong data-start=\"132\" data-end=\"172\"\u003e1\/2\" (13mm) quarter-turn single bulb holder\u003c\/strong\u003e is the perfect replacement for worn or missing factory sockets, restoring clean, consistent backlighting to your dash and controls. It’s specifically designed to fit the rectangular information block found in select trucks, while also serving as a direct fit for heater control backlight locations—making it a versatile and practical upgrade for restoration or repair projects.\u003c\/p\u003e\n\u003cp data-start=\"552\" data-end=\"886\"\u003eCompatible with a wide range of vehicles from all manufacturers, this bulb holder is an ideal choice for enthusiasts looking to maintain factory functionality while improving reliability. Whether you're refreshing a vintage dashboard or solving dim\/intermittent lighting issues, this component delivers a secure fit and dependable performance.\u003c\/p\u003e\n\u003cp data-start=\"888\" data-end=\"916\"\u003e\u003cstrong data-start=\"888\" data-end=\"916\"\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"917\" data-end=\"1393\"\u003e\n\u003cli data-section-id=\"23nqdo\" data-start=\"917\" data-end=\"979\"\u003e\n\u003cstrong data-start=\"919\" data-end=\"947\"\u003e1\/2\" quarter-turn design\u003c\/strong\u003e for easy, secure installation\u003c\/li\u003e\n\u003cli data-section-id=\"6ccwrp\" data-start=\"980\" data-end=\"1069\"\u003e\n\u003cstrong data-start=\"982\" data-end=\"1008\"\u003eDirect-fit replacement\u003c\/strong\u003e for GM rectangular info block\u003c\/li\u003e\n\u003cli data-section-id=\"2kl6bd\" data-start=\"1070\" data-end=\"1162\"\u003e\n\u003cstrong data-start=\"1072\" data-end=\"1094\"\u003eWide compatibility\u003c\/strong\u003e with a wide range of vehicles from all manufacturers from the 1950's thru the 1990's\u003c\/li\u003e\n\u003cli data-section-id=\"1bez7af\" data-start=\"1163\" data-end=\"1253\"\u003e\n\u003cstrong data-start=\"1165\" data-end=\"1199\"\u003eSupports factory 194 bulb size\u003c\/strong\u003e (compatible with both incandescent and LED options)\u003c\/li\u003e\n\u003cli data-section-id=\"xn6tmx\" data-start=\"1254\" data-end=\"1338\"\u003e\n\u003cstrong data-start=\"1256\" data-end=\"1288\"\u003eRestores proper illumination\u003c\/strong\u003e for improved visibility and interior aesthetics\u003c\/li\u003e\n\u003cli data-section-id=\"1xzh4qb\" data-start=\"1339\" data-end=\"1393\"\u003e\u003cstrong data-start=\"1341\" data-end=\"1391\"\u003ePerfect for restorations, repairs, or upgrades\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1395\" data-end=\"1526\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eBring your classic GM interior back to life with a simple, reliable lighting solution built to match original fitment and function.\u003c\/p\u003e","brand":"Classic Revolution","offers":[{"title":"Default Title","offer_id":48138299998449,"sku":null,"price":7.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/3138\/1489\/files\/Thumbnail_2.jpg?v=1734491521"},{"product_id":"1967-1972-c-k-chevrolet-gmc-pickup-blazer-suburban-4-plug-gauge-backlight-harness","title":"1967-1972 C\/K Chevrolet\/GMC Pickup\/Blazer\/Suburban 4 Plug Gauge Backlight Harness","description":"\u003cp data-end=\"179\" data-start=\"0\"\u003eSay goodbye to flickering dash lights and unreliable factory connections—this hard-wired gauge backlight upgrade delivers consistent, dependable illumination every time you drive.\u003c\/p\u003e\n\u003cp data-end=\"556\" data-start=\"181\"\u003eDesigned as a direct replacement for the original 1\/4-turn bulb connectors, this kit eliminates one of the most common failure points in classic truck dashboards: worn, inconsistent factory receptacles. Instead of constantly cleaning contacts or bending fragile copper tabs, you’ll get a solid, hard-wired connection that keeps your gauge cluster fully lit and looking sharp.\u003c\/p\u003e\n\u003cp data-end=\"869\" data-start=\"558\"\u003eBy integrating directly into the HVAC wiring circuit, this solution provides stable power to your gauge backlights without interfering with heater or climate control operation. The result is a cleaner install, improved electrical reliability, and a dash that performs like it should—every time you turn the key.\u003c\/p\u003e\n\u003cp data-end=\"899\" data-start=\"871\"\u003e\u003cstrong data-end=\"899\" data-start=\"871\"\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1382\" data-start=\"900\"\u003e\n\u003cli data-end=\"1003\" data-start=\"900\" data-section-id=\"1a6kylr\"\u003e\n\u003cstrong data-end=\"929\" data-start=\"902\"\u003eHard-wired reliability:\u003c\/strong\u003e Eliminates intermittent connections caused by worn factory bulb sockets\u003c\/li\u003e\n\u003cli data-end=\"1079\" data-start=\"1004\" data-section-id=\"12ssghe\"\u003e\n\u003cstrong data-end=\"1040\" data-start=\"1006\"\u003eConsistent gauge illumination:\u003c\/strong\u003e No more random dash lights going out\u003c\/li\u003e\n\u003cli data-end=\"1182\" data-start=\"1080\" data-section-id=\"1qdspqo\"\u003e\n\u003cstrong data-end=\"1112\" data-start=\"1082\"\u003eDirect replacement design:\u003c\/strong\u003e Upgrades factory 1\/4-turn connectors with a modern, secure solution\u003c\/li\u003e\n\u003cli data-end=\"1273\" data-start=\"1183\" data-section-id=\"pv6m1u\"\u003e\n\u003cstrong data-end=\"1208\" data-start=\"1185\"\u003eSimple integration:\u003c\/strong\u003e Ties into existing HVAC wiring without affecting functionality\u003c\/li\u003e\n\u003cli data-end=\"1382\" data-start=\"1274\" data-section-id=\"84nnyb\"\u003e\n\u003cstrong data-end=\"1314\" data-start=\"1276\"\u003eIdeal for restorations \u0026amp; upgrades:\u003c\/strong\u003e Perfect for classic truck owners seeking dependable dash lighting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1634\" data-start=\"1384\"\u003eUpgrade your gauge lighting with a solution built for long-term performance. Whether you're restoring a classic or improving daily drivability, this hard-wired gauge backlight kit ensures your dashboard stays fully illuminated—just like it should.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1634\" data-start=\"1384\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"display: inline-block; background-color: #ffc107; color: black; padding: 10px 20px; text-decoration: none; border-radius: 5px;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/3138\/1489\/files\/CR-DI-0003_-_1973-1991_Harness_Instructions_v2.pdf?v=1778000452\"\u003eDownload Installation Manual PDF\u003c\/a\u003e\u003c\/p\u003e","brand":"Classic Revolution","offers":[{"title":"Default Title","offer_id":48138471178481,"sku":null,"price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/3138\/1489\/files\/20260506_224035.jpg?v=1778132537"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/3138\/1489\/collections\/DashboardLit.jpg?v=1781324347","url":"https:\/\/www.classicrevolution.com\/collections\/wiring-harnesses.oembed","provider":"Classic Revolution","version":"1.0","type":"link"}