[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-655150-105":59,"doc-detail-655150-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","wire-harness-installation-instructions-90507-installation-manual","WIRE HARNESS INSTALLATION INSTRUCTIONS - 90507 - Installation Manual","","Comprehensive wire harness installation instructions for the Painless Performance GM Pickup Chassis harness, manual #90507 (10th edition, January 14, 2014). Covers kit overview and included components, pre-installation and routing guidelines, tools required, rough installation steps, harness attachment, grounding, terminal installation and connections, and system testing. Includes specific GM circuit connection procedures, guidance for alternator, ignition, steering column connectors, lighting circuits, instrument panel wiring, wiper and HVAC sections, plus a wire connection index and fuse requirements.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/wire-harness-installation-instructions-90507-installation-manual/655150/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/wire-harness-installation-instructions-90507-installation-manual/655150.png","ImageObject",300,407,{"name":92,"@type":93},"Mimi","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-31","2026-10-25",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is manual #90507 for, and which harness does it cover?","Question",{"text":112,"@type":113},"Manual #90507 provides installation instructions for the Painless Performance GM Pickup Chassis harness, covering 1973-87 with a 27-circuit setup.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Should I reuse an existing vehicle harness when installing this kit?",{"text":117,"@type":113},"If the vehicle has an existing harness, the manual advises retaining it for possible reuse of various pigtails and connector housings specific to the application.",{"name":119,"@type":110,"acceptedAnswer":120},"What wire gauge and crimping process do the included terminals require?",{"text":121,"@type":113},"The manual specifies terminals designed for wire gauges 18-14, instructing to strip 1/4\" of insulation and crimp using the correct roll-crimp terminal tool.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},655150,1793103883,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},2336477974920,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","WIRE HARNESS INSTALLATION  \nINSTRUCTIONS  \nFor Installing:  \n\\#10205 Classic Plus Customizable GM Pickup Chassis Harness – 1973-87 – 27 Circuit  \nManual \\#90507  \nPainless Performance Products, LLC  \n2501 Ludelle Street  \nFort Worth, TX 76105-1036  \n800-423-9696 phone – 817-244-4024 fax  \nWeb Site: [www.painlessperformance.com](www.painlessperformance.com)  \nE-Mail: [painless@painlessperformance.com](painless@painlessperformance.com)  \nIf you have any questions concerning the installation of this product, feel free to call Painless Performance Products' tech line at 1-800-423- 9696. Calls are answered from 8am to 5pm central time, Monday thru Thursday, 8am-4:30pm Friday, except holidays.  \nHere we have provided you with accurate instructions for the installation of this product. However, if you have comments/suggestions concerning these instructions, please call or email us (our contact information can be found at the top of this page or online at [www.painlessperformance.com](www.painlessperformance.com)) .We sincerely appreciate your business.  \nPainless Performance Products, LLC shall in no event be liable in contract or tort (including negligence) for special, indirect, incidental, or consequential damages, such as but not limited to, loss of property, or anyother damages, costs or expenses which might be claimed as the result of the use or failure of the goods sold hereby, except only the cost of repair or replacement.  \nShould you damage or lose part of your manual, a full color copy of these instructions can [be found online at www.painlessperformance.com](be found online at www.painlessperformance.com)  \nInstallation Manual: 90507  \n10th Edition: January 14, 2014  \nCopyright 􀂤 1997 by Painless Performance Products, LLC  \nNOTE :  \nIf your vehicle has an existing harness, you will want to retain it for the possible re-use of various Pigtails & Connector housings, particular to your application.  \nIncluded in this kit is a sheet of pre-printed labels, to assist in identifying of connections as the existing harness is removed from the vehicle.  \nIf you do not have an existing harness, there is a package of terminals included with the harness that will enable you to make most of the connections needed. Replacement lighting pigtails & sockets can be readily obtained from your local parts distributor  \nPainless Performance has included 20 extra male and female bulkhead terminals in this harness kit. Use these extra terminals to run wires through the firewall using the male and female bulkhead connectors on the harness. See below for instructions on how to use these terminals. The terminals we have provided you are designed for wire gauges 18-14. Strip ¼” of the insulation from the wire and then crimp it to the terminal using the correct terminal crimping tool. These terminals are roll crimp style. You can purchase this type of terminal crimper from Painless, part \\# 70900. See below for a picture of the correct terminal crimping tool and how to use them. Take a look at how the terminals we inserted into the bulkhead connector here at the factory. Notice they are orientated a certain direction. Insert the blade (male) terminal into the engine compartment side bulkhead connector. Insert the female terminal into the passenger compartment side of the bulkhead connector.  \nTABLE OF CONTENTS  \nList of Figures…………………………………………………………………………………………………………… i  \nList of Tables……………………………………………………………………………………………………………. i  \nList of Diagrams……………………………………………………………………………………………………….. i  \n1.0 Introduction………………………………………………………………………………………………….. 1  \n2.0 About These Instructions……………………………………………………………………………….. 2  \n3.0 Contents Of The Painless Performance Wire Harness Kit……………………………………. 2  \n4.0 Tools Needed………………………………………………………………………………………………… 2  \n5.0 Pre-Installation and General Harness Routing Guidelines…………………………………… 2  \n6.0 Harness General Installation Instructions…………………………………………………………. 5  \n6.1 Rough Installation……………………………………………………………………………… 5 ","cbCaiiExk1V3VE97","https://ap.wps.com/l/cbCaiiExk1V3VE97","pdf",3328988,36,"English","# List of Figures\n# List of Tables\n# List of Diagrams\n# 1.0 Introduction\n# 2.0 About These Instructions\n# 3.0 Contents Of The Painless Performance Wire Harness Kit\n# 4.0 Tools Needed\n# 5.0 Pre-Installation and General Harness Routing Guidelines\n# 6.0 Harness General Installation Instructions\n## 6.1 Rough Installation\n## 6.2 Harness Attachment\n## 6.3 Grounding The Truck\n## 6.4 Terminal Installation and Making Connections\n## 6.5 Testing The System\n# 7.0 GM –Specific Circuit Connections\n## 7.1 Late GM Alternator (after 1972)– Internal Regulator\n## 7.2 GM One-Wire Alternator\n## 7.3 GM Ignition (Start/Run) System\n## 7.4 Steering Column Pigtail – Turn Signal & Ignition Switch Connectors\n# 8.0 Specific Circuit Connections\n## 8.1 Connecting Add-On Ammeter & Maxi-Fuse\n## 8.2 Interior Lighting\n## 8.3 Headlight Section \"A\" Wiring\n## 8.4 Headlight Section \"B\" Wiring\n## 8.5 Instrument Panel Wiring\n## 8.6 Brake Light Switch\n## 8.7 Windshield Wiper Section A & B\n## 8.8 Instrument Panel Section\n## 8.9 Heat Only\n## 8.10 A/C Section \"A\"\n## 8.11 A/C Section \"B\"\n# 9.0 Wire Connection Index and Fuse Requirements\n## 9.1 Wire Connection Index\n## 9.2 Fuse Requirements","[{\"question\":\"What is manual #90507 for, and which harness does it cover?\",\"answer\":\"Manual #90507 provides installation instructions for the Painless Performance GM Pickup Chassis harness, covering 1973-87 with a 27-circuit setup.\"},{\"question\":\"Should I reuse an existing vehicle harness when installing this kit?\",\"answer\":\"If the vehicle has an existing harness, the manual advises retaining it for possible reuse of various pigtails and connector housings specific to the application.\"},{\"question\":\"What wire gauge and crimping process do the included terminals require?\",\"answer\":\"The manual specifies terminals designed for wire gauges 18-14, instructing to strip 1/4\\\" of insulation and crimp using the correct roll-crimp terminal tool.\"}]","WIRE HARNESS INSTALLATION INSTRUCTIONS - 90507 - Installation Manual | PDF",1792959910,91]