{"id":9970280726768,"title":"Classic Update Kit - 1973-82 Chevy \u0026 GMC Truck","handle":"classic-update-kit-1973-82-chevy-truck-510347","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eClassic Update kits are designed for projects that require more circuits than would have been available in an original chassis harness. Each kit includes all the basics needed to rewire a vehicle from headlight to tail light, and will accommodate popular add-on items such as electronic fuel injection, aftermarket gauges and common supporting modifications. This harness includes:\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eAn updated ATC fuse panel and fuses, along with modern GXL wire throughout. Wire functions are labeled every 3 to 5 inches.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003ePre-built dash harness and our exclusive gauge cluster disconnect system for use with stock or aftermarket instruments.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eEngine and front light harness with extra-long leads for custom routing and updated engine and transmission combinations. Original-style bulkhead connectors included.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eSix-way power accessory plug can be used as a convenient power source for aftermarket accessories.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eA rear body wiring with extra-long leads for custom routing.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e175 amp mega fuse kit with 6 gauge charge cable to support a high output charging system and internally regulated alternator.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eOriginal-replacement connectors, terminals and lamp sockets. \u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eHeadlight switch with 26 amp internal circuit breaker and new floor dimmer switch included.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e Dash harness includes a connector for the 75 and up GM steering column connector. A mating connector and terminals are included for easy adaption to earlier GM or aftermarket columns.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eGauge cluster printed circuit board connector and terminals included.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\u003ch5\u003eFit Notes\u003c\/h5\u003eClassic Update Series\u003ch5\u003eInstructions\u003c\/h5\u003e\u003ciframe title=\"American Autowire Product Instructions\" src=\"https:\/\/api.americanautowire.com\/shopify\/instructions.php?p=510347\" height=\"650\" width=\"100%\" scrolling=\"yes\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003ch5\u003eCatalog\u003c\/h5\u003e\u003cdiv data-paperturn=\"embed-v1\" style=\"width: 100%; max-width: 100%; height: 408px;\"\u003e\u003ciframe src=\"https:\/\/www.paperturn-view.com\/?pid=MzA305461\u0026amp;p=52\u0026amp;bgcolor=%23DCCFC7\u0026amp;embed=script\u0026amp;shadow=1\u0026amp;flipSound=1\u0026amp;hardCover=1\" width=\"100%\" height=\"100%\" webkitallowfullscreen mozallowfullscreen allowfullscreen style=\"border: 0px; display: block; background-color: #DCCFC7\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003cscript src=\"https:\/\/www.paperturn-view.com\/script\/embed?v=1\"\u003e\u003c\/script\u003e","published_at":"2026-04-04T12:44:27-07:00","created_at":"2026-04-04T12:44:27-07:00","vendor":"american-autowire","type":"Classic Update Wiring Kits","tags":["1973","1974","1975","1976","1977","1978","1979","1980","1981","1982","AAW","CHEVROLET","Chevy","Chevy \u0026 GMC Truck","Classic Update Wiring Kits","GMC Truck","TRUCK","vehicle-filter"],"price":101100,"price_min":101100,"price_max":101100,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":49500214100208,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"510347","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Classic Update Kit - 1973-82 Chevy \u0026 GMC Truck","public_title":null,"options":["Default Title"],"price":101100,"weight":7938,"compare_at_price":null,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.hitechclassics.com\/cdn\/shop\/files\/510347_1.jpg?v=1775331870"],"featured_image":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/510347_1.jpg?v=1775331870","options":["Title"],"media":[{"alt":null,"id":44159697879280,"position":1,"preview_image":{"aspect_ratio":1.566,"height":1162,"width":1820,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/510347_1.jpg?v=1775331870"},"aspect_ratio":1.566,"height":1162,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/510347_1.jpg?v=1775331870","width":1820}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch5\u003eDescription\u003c\/h5\u003e\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eClassic Update kits are designed for projects that require more circuits than would have been available in an original chassis harness. Each kit includes all the basics needed to rewire a vehicle from headlight to tail light, and will accommodate popular add-on items such as electronic fuel injection, aftermarket gauges and common supporting modifications. This harness includes:\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eAn updated ATC fuse panel and fuses, along with modern GXL wire throughout. Wire functions are labeled every 3 to 5 inches.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003ePre-built dash harness and our exclusive gauge cluster disconnect system for use with stock or aftermarket instruments.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eEngine and front light harness with extra-long leads for custom routing and updated engine and transmission combinations. Original-style bulkhead connectors included.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eSix-way power accessory plug can be used as a convenient power source for aftermarket accessories.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eA rear body wiring with extra-long leads for custom routing.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e175 amp mega fuse kit with 6 gauge charge cable to support a high output charging system and internally regulated alternator.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eOriginal-replacement connectors, terminals and lamp sockets. \u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eHeadlight switch with 26 amp internal circuit breaker and new floor dimmer switch included.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e Dash harness includes a connector for the 75 and up GM steering column connector. A mating connector and terminals are included for easy adaption to earlier GM or aftermarket columns.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eGauge cluster printed circuit board connector and terminals included.\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\u003ch5\u003eFit Notes\u003c\/h5\u003eClassic Update Series\u003ch5\u003eInstructions\u003c\/h5\u003e\u003ciframe title=\"American Autowire Product Instructions\" src=\"https:\/\/api.americanautowire.com\/shopify\/instructions.php?p=510347\" height=\"650\" width=\"100%\" scrolling=\"yes\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003ch5\u003eCatalog\u003c\/h5\u003e\u003cdiv data-paperturn=\"embed-v1\" style=\"width: 100%; max-width: 100%; height: 408px;\"\u003e\u003ciframe src=\"https:\/\/www.paperturn-view.com\/?pid=MzA305461\u0026amp;p=52\u0026amp;bgcolor=%23DCCFC7\u0026amp;embed=script\u0026amp;shadow=1\u0026amp;flipSound=1\u0026amp;hardCover=1\" width=\"100%\" height=\"100%\" webkitallowfullscreen mozallowfullscreen allowfullscreen style=\"border: 0px; display: block; background-color: #DCCFC7\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003cscript src=\"https:\/\/www.paperturn-view.com\/script\/embed?v=1\"\u003e\u003c\/script\u003e"}