[{"data":1,"prerenderedAt":275},["ShallowReactive",2],{"navigation":3,"/docs/f550-crew-cab-203/upgrades":99,"/docs/f550-crew-cab-203/upgrades-surround":270},[4,8,38],{"title":5,"path":6,"stem":7},"Home","/docs","docs/index",{"title":9,"path":10,"stem":11,"children":12,"page":37},"About","/docs/about","docs/1.about",[13,17,21,25,29,33],{"title":14,"path":15,"stem":16},"Manifesto","/docs/about/manifesto","docs/1.about/1.manifesto",{"title":18,"path":19,"stem":20},"Philosophy","/docs/about/philosophy","docs/1.about/2.philosophy",{"title":22,"path":23,"stem":24},"Principles","/docs/about/principles","docs/1.about/3.principles",{"title":26,"path":27,"stem":28},"Constraints","/docs/about/constraints","docs/1.about/4.constraints",{"title":30,"path":31,"stem":32},"History Timeline","/docs/about/history-timeline","docs/1.about/5.history-timeline",{"title":34,"path":35,"stem":36},"License","/docs/about/license","docs/1.about/6.license",false,{"title":39,"path":40,"stem":41,"children":42},"F550 Crew 84CA","/docs/f550-crew-cab-203","docs/2.f550-crew-cab-203/index",[43,45,55,65],{"title":44,"path":40,"stem":41},"Overview",{"title":46,"path":47,"stem":48,"children":49},"Sub-frame","/docs/f550-crew-cab-203/sub-frame","docs/2.f550-crew-cab-203/1.sub-frame/index",[50,51],{"title":44,"path":47,"stem":48},{"title":52,"path":53,"stem":54},"Installation","/docs/f550-crew-cab-203/sub-frame/installation","docs/2.f550-crew-cab-203/1.sub-frame/2.installation",{"title":56,"path":57,"stem":58,"children":59},"Bed","/docs/f550-crew-cab-203/bed","docs/2.f550-crew-cab-203/2.bed/index",[60,61],{"title":44,"path":57,"stem":58},{"title":62,"path":63,"stem":64},"Side Boxes","/docs/f550-crew-cab-203/bed/side-boxes","docs/2.f550-crew-cab-203/2.bed/1.side-boxes",{"title":66,"path":67,"stem":68,"children":69},"Upgrades","/docs/f550-crew-cab-203/upgrades","docs/2.f550-crew-cab-203/3.upgrades/index",[70,71,75,79,83,87,91,95],{"title":44,"path":67,"stem":68},{"title":72,"path":73,"stem":74},"Tie-Down Brackets","/docs/f550-crew-cab-203/upgrades/tiedown-brackets","docs/2.f550-crew-cab-203/3.upgrades/1.tiedown-brackets",{"title":76,"path":77,"stem":78},"150A DC-DC","/docs/f550-crew-cab-203/upgrades/150a-dc-dc-charging","docs/2.f550-crew-cab-203/3.upgrades/2.150a-dc-dc-charging",{"title":80,"path":81,"stem":82},"DC-DC Cooling","/docs/f550-crew-cab-203/upgrades/dc-dc-cooling","docs/2.f550-crew-cab-203/3.upgrades/3.dc-dc-cooling",{"title":84,"path":85,"stem":86},"Lifting Points","/docs/f550-crew-cab-203/upgrades/lifting-points","docs/2.f550-crew-cab-203/3.upgrades/4.lifting-points",{"title":88,"path":89,"stem":90},"Rear Recovery","/docs/f550-crew-cab-203/upgrades/rear-recovery-point","docs/2.f550-crew-cab-203/3.upgrades/5.rear-recovery-point",{"title":92,"path":93,"stem":94},"Spare Tire","/docs/f550-crew-cab-203/upgrades/spare-tire-carrier","docs/2.f550-crew-cab-203/3.upgrades/6.spare-tire-carrier",{"title":96,"path":97,"stem":98},"Onboard Air","/docs/f550-crew-cab-203/upgrades/onboard-air","docs/2.f550-crew-cab-203/3.upgrades/7.onboard-air",{"id":100,"title":66,"body":101,"description":261,"extension":262,"links":263,"meta":264,"navigation":265,"path":67,"seo":266,"stem":68,"__hash__":269},"docs/docs/2.f550-crew-cab-203/3.upgrades/index.md",{"type":102,"value":103,"toc":256},"minimark",[104,125,129],[105,106,107,108,116,117,120,121,124],"p",{},"These are the upgrades to the truck and to the camper on this build. The camper is a ",[109,110,115],"a",{"href":111,"rel":112,"target":114},"https://nucamprv.com/cirrus-920/",[113],"nofollow","_blank","nuCamp Cirrus 920"," truck camper, carried on the F-550's ",[109,118,119],{"href":47},"sub-frame"," and ",[109,122,123],{"href":57},"bed",". We live in it full-time, so anything that wears out or fails under daily rough-road use gets upgraded — and each upgrade gets its own page with the reasoning, the analysis and the files to make your own.",[126,127,66],"h2",{"id":128},"upgrades",[130,131,132,151],"table",{},[133,134,135],"thead",{},[136,137,138,142,145,148],"tr",{},[139,140,141],"th",{},"Upgrade",[139,143,144],{},"Part",[139,146,147],{},"What it does",[139,149,150],{},"Status",[152,153,154,170,185,200,215,229,243],"tbody",{},[136,155,156,161,164,167],{},[157,158,159],"td",{},[109,160,72],{"href":73},[157,162,163],{},"Camper",[157,165,166],{},"316 stainless replacements for the four camper tie-down brackets. Drop-in on the factory studs, FEA-checked to the FastGun's 2,500 lbf rating.",[157,168,169],{},"🟡 Rev A ordered 22 Sep 2026",[136,171,172,177,179,182],{},[157,173,174],{},[109,175,176],{"href":77},"150A DC-DC Charging",[157,178,163],{},[157,180,181],{},"Three Victron Orion XS DC-DC chargers pull 150 A from the truck alternator into the house bank while driving — about 1.8 kWh per hour of driving, with the wiring topology, sizing math and acceptance tests.",[157,183,184],{},"✅ Installed",[136,186,187,192,194,197],{},[157,188,189],{},[109,190,191],{"href":81},"DC-DC Charger Cooling",[157,193,163],{},[157,195,196],{},"Printed fan shrouds on the three Orion XS chargers, switched by a Shelly from the Cerbo GX so they blow only while a charger is working.",[157,198,199],{},"🟡 In design",[136,201,202,206,209,212],{},[157,203,204],{},[109,205,84],{"href":85},[157,207,208],{},"Truck",[157,210,211],{},"Clearly defined, marked jacking and lift points for the loaded truck with the sub-frame, bed and camper on.",[157,213,214],{},"🔍 In evaluation",[136,216,217,222,224,227],{},[157,218,219],{},[109,220,221],{"href":89},"Rear Recovery Point",[157,223,208],{},[157,225,226],{},"A rated rear recovery point / hitch receiver — the truck has none today.",[157,228,214],{},[136,230,231,236,238,241],{},[157,232,233],{},[109,234,235],{"href":93},"Spare Tire Carrier",[157,237,208],{},[157,239,240],{},"Carrying and handling the 335/80R20 super-single spare.",[157,242,214],{},[136,244,245,249,251,254],{},[157,246,247],{},[109,248,96],{"href":97},[157,250,208],{},[157,252,253],{},"An air source to feed the sub-frame air outlets — tire inflation after airing down.",[157,255,214],{},{"title":257,"searchDepth":258,"depth":258,"links":259},"",2,[260],{"id":128,"depth":258,"text":66},"Upgrades to the F-550 and its nuCamp Cirrus 920 camper — the reasoning, analysis and files to do the same.","md",null,{},{"title":44},{"title":267,"description":268},"F-550 & Truck Camper Upgrades | OpenOverland","Open-source upgrades for a Ford F-550 truck camper build and its nuCamp Cirrus 920 camper — reasoning, engineering analysis and free files.","LbXfbaZpRpJGPMKeydtLBn8D_8fcaYtWezWlE1WmJBY",[271,273],{"title":62,"path":63,"stem":64,"description":272,"children":-1},"The two side boxes of the bed. Stage one is the driver-side door — a flush pivot door that goes together like a kit.",{"title":72,"path":73,"stem":74,"description":274,"children":-1},"Why we replaced the camper's aluminium tie-down brackets with bent 316 stainless — the reasoning, the design, the strength analysis and the files to make your own.",1791325510575]