runaway parents Posted November 11, 2018 Report Share Posted November 11, 2018 Well PJ Adams seems to be the best source for my frame rail extinction project . Seems kind of weird I can get the rails $700.00 cheaper from a company on the east coast than I can get them from a company that is latterly 3 miles from my house in North Central Washington . Interesting!!!!!!!!!!!! Link to comment Share on other sites More sharing options...
Mastercraft Posted November 11, 2018 Report Share Posted November 11, 2018 Had you considered a HDT scrap yard? When I did ours, got 6+ ft of the 300mm Volvo frame (both sides with a couple cross members) and 6 ft of some frame rails that fit nicely inside the 300mm stuff that I used as fish plates. I think they charged me $10 a ft and they sent a guy our with a torch and fork lift to cut it and load it up for me. 2009 Volvo 780 D16 535hp 1850 ft-lbs I shift 3.36 Thermo King Tripac APU DIY Bed and Frame Extension ET Hitch, Stellar EC2000, EcoGen 6K 2002 F350 CC Dually w/ Lance 1181 2012 Mini Cooper S 2007 Teton Royal Freedom " The only place you will find success before work is the dictionary " Link to comment Share on other sites More sharing options...
runaway parents Posted November 11, 2018 Author Report Share Posted November 11, 2018 34 minutes ago, Mastercraft said: Had you considered a HDT scrap yard? When I did ours, got 6+ ft of the 300mm Volvo frame (both sides with a couple cross members) and 6 ft of some frame rails that fit nicely inside the 300mm stuff that I used as fish plates. I think they charged me $10 a ft and they sent a guy our with a torch and fork lift to cut it and load it up for me. yup could not find any around my area Link to comment Share on other sites More sharing options...
phoenix2013 Posted November 11, 2018 Report Share Posted November 11, 2018 How far out are you trying to extend the frame? Link to comment Share on other sites More sharing options...
runaway parents Posted November 11, 2018 Author Report Share Posted November 11, 2018 6 hours ago, phoenix2013 said: How far out are you trying to extend the frame? 3ft then break downward 6 ft (might be less) to accommodate the dove tail Link to comment Share on other sites More sharing options...
Jack Mayer Posted November 21, 2018 Report Share Posted November 21, 2018 On 11/11/2018 at 5:30 PM, runaway parents said: 3ft then break downward 6 ft (might be less) to accommodate the dove tail So you are extending 9' if I understand you correctly? Really? 9' unsupported is not something I'd do. But then again, I'm not doing it.....Perhaps I'm not understanding correctly. Jack & Danielle Mayer #60376 Lifetime Member Living on the road since 2000PLEASE no PM's. Email me. jackdanmayer AT gmail 2016 DRV Houston 44' 5er (we still have it) 2022 New Horizons 43' 5er 2016 Itasca 27N 28' motorhome 2019 Volvo 860, D13 455/1850, 236" wb, I-Shift, battery-based APU No truck at the moment - we use one of our demo units 2016 smart Passion, piggyback on the truck -------------------------------------------------------------------------See our website for info on New Horizons 5th wheels, HDTs as tow vehicles, communications on the road, and use of solar powerwww.jackdanmayer.com Principal in RVH Lifestyles. RVH-Lifestyles.com Link to comment Share on other sites More sharing options...
runaway parents Posted November 21, 2018 Author Report Share Posted November 21, 2018 1 hour ago, Jack Mayer said: So you are extending 9' if I understand you correctly? Really? 9' unsupported is not something I'd do. But then again, I'm not doing it.....Perhaps I'm not understanding correctly. Interesting. Jack please go to page 38 and look up frame extension pics .You stated this was not going to be an issue. Now the bed is built and the frame is bought .And now you said you would not do it. Please explain. I didn't go cheap on buying frame material and liner no mild steel all hardened . Link to comment Share on other sites More sharing options...
Moresmoke Posted November 21, 2018 Report Share Posted November 21, 2018 So how far back is your hitch going to sit? 3 feet of frame flat then a beaver tail, if the hitch is in that first 5 feet, it shouldn’t be a problem. I am assuming that most of the beaver tail is just for loading purposes? It probably doesn't need much for frame rail under the body at the back. I think people are getting the impression that your hitch will be at the end of that 9 feet. Give us some hard numbers, distances, weights, how much drop on the tail, expected tounge weight, trailer weight. Then we can give you a better idea of the forces involved. Just to give you and idea, my body essentially mounts to the rear of the original frame, and makes a 5 foot tail from there. It was designed to carry 4000 lbs midway down the tail,and bumper pull a 20000 trailer with 2000 lb tounge weight. The frame of the body is 4 6inch channels. Link to comment Share on other sites More sharing options...
Jack Mayer Posted November 23, 2018 Report Share Posted November 23, 2018 Exactly what moresmoke said. Extending it that far you better know your weights. And how far the pin is out. You just have to be careful in planning it. I assume you calculated the unloading of your front axle in the process. You can do a 9' extension but you are pushing the limits if you are putting the pin all the way out there. You just need to calculate everything out before doing it. Which I assume you have. Which is also why I said I probably did not have all the data. There is a LOT of tailswing and a LOT of dip when extending that far. Also has to be accounted for. But people have done that much and more and they are still driving the rigs. Jack & Danielle Mayer #60376 Lifetime Member Living on the road since 2000PLEASE no PM's. Email me. jackdanmayer AT gmail 2016 DRV Houston 44' 5er (we still have it) 2022 New Horizons 43' 5er 2016 Itasca 27N 28' motorhome 2019 Volvo 860, D13 455/1850, 236" wb, I-Shift, battery-based APU No truck at the moment - we use one of our demo units 2016 smart Passion, piggyback on the truck -------------------------------------------------------------------------See our website for info on New Horizons 5th wheels, HDTs as tow vehicles, communications on the road, and use of solar powerwww.jackdanmayer.com Principal in RVH Lifestyles. RVH-Lifestyles.com Link to comment Share on other sites More sharing options...
runaway parents Posted November 23, 2018 Author Report Share Posted November 23, 2018 1 hour ago, Jack Mayer said: Exactly what moresmoke said. Extending it that far you better know your weights. And how far the pin is out. You just have to be careful in planning it. I assume you calculated the unloading of your front axle in the process. You can do a 9' extension but you are pushing the limits if you are putting the pin all the way out there. You just need to calculate everything out before doing it. Which I assume you have. Which is also why I said I probably did not have all the data. There is a LOT of tailswing and a LOT of dip when extending that far. Also has to be accounted for. But people have done that much and more and they are still driving the rigs. New bed Has 14ft of flat bed space 6ft of dove tail . From back of cab to end of stock frame 12ft. Have to ad 2ft flat and then turn frame downward 6ft to accommodate dove tail. Pin will be back from end of stock frame 7ft with a pin weight of 1400lbs going to remain tandem. I hope this enough info to clear this up. New frame extensions are made to the same stock frame rail dimensions and out of hardened steel. Link to comment Share on other sites More sharing options...
Steve from SoCal Posted November 23, 2018 Report Share Posted November 23, 2018 That will drastically unload the front axle of the truck, 7 feet from the back of the original frame is 36+" to the center of the tandem? Steve 2005 Peterbilt 387-112 Baby Cat 9 speed U-shift 1996/2016 remod Teton Royal Atlanta 1996 Kentucky 48 single drop stacker garage project Pulls like a train, sounds like a plane....faster than a Cheetah sniffin cocaine. Link to comment Share on other sites More sharing options...
Randyretired Posted November 23, 2018 Report Share Posted November 23, 2018 A pin weight of 1400 pounds is not much. I don't think this will unload the front axle much. How much weight will be carried on the bed ahead of the rear axles and even how much the bed ahead of the rear axles weighs can negate the unloading. Staying tandem will definitely help with the stability. Our pin is nearly 9' from the center of the tandem axles after adding 5' of frame and the pin is around 6,000 pounds but the bed is heavy and the toolboxes are heavy and when the RZR is loaded behind the cab the unloading seems minimal. Then add the car. We have driven this rig for 12 years through some really rough and sometimes muddy terrain and never has the HDT been unstable. Your distance is long but 1400 pounds is not very heavy and the additional load carried in front of the rear axles can negate much of that. Randy 2001 Volvo VNL 42 Cummins ISX Autoshift Link to comment Share on other sites More sharing options...
runaway parents Posted November 28, 2018 Author Report Share Posted November 28, 2018 On 11/23/2018 at 3:35 PM, Randyretired said: A pin weight of 1400 pounds is not much. I don't think this will unload the front axle much. How much weight will be carried on the bed ahead of the rear axles and even how much the bed ahead of the rear axles weighs can negate the unloading. Staying tandem will definitely help with the stability. Our pin is nearly 9' from the center of the tandem axles after adding 5' of frame and the pin is around 6,000 pounds but the bed is heavy and the toolboxes are heavy and when the RZR is loaded behind the cab the unloading seems minimal. Then add the car. We have driven this rig for 12 years through some really rough and sometimes muddy terrain and never has the HDT been unstable. Your distance is long but 1400 pounds is not very heavy and the additional load carried in front of the rear axles can negate much of that. Thanks for the reassurance we are planning to put a escape on it .After spending so much money on this bed restoring it and remodeling it Dws blood pressure was ratcheting up and I was going end up being a full timer not in the Rv under it. Wasn't looking good. I kept on telling her we did our research did the math dotted all the I, s and crossed all the t,s its going to work. Steel for the frame supposed to be delivered today. Going to be a busy weekend. There's know turning back now. Link to comment Share on other sites More sharing options...
Randyretired Posted November 28, 2018 Report Share Posted November 28, 2018 As I said the weight added in front of the rear axles can offset the weight added behind the axles. Our setups to often leave the rear axles without enough weight. I am a firm believer in adding weight to the rear axle as long as it doesn't overly lighten the steer axle. From your numbers you should be fine from a weight point of view. Our numbers are much more aggressive than yours and it has proven to be fine. In fact it has been very beneficial as the added weight on the rear axles provides the traction we need in rough areas. One thing to watch is to keep the height of the overhang such that it isn't dragging on uneven surfaces. We go offroad at times and that was important to us. Also the front jacks on our 5er need to be all the way up as the overhang will accentuate the movement when crossing uneven ground. Finally keep an eye on the swing out of the rear overhang in tight quarters. Backing will be incredibly responsive and the 5er will track close to the HDT on turns. We have enjoyed our setup for years and I expect you will enjoy your new rig. Good luck and happy travels. Randy 2001 Volvo VNL 42 Cummins ISX Autoshift Link to comment Share on other sites More sharing options...
runaway parents Posted November 29, 2018 Author Report Share Posted November 29, 2018 11 hours ago, Randyretired said: As I said the weight added in front of the rear axles can offset the weight added behind the axles. Our setups to often leave the rear axles without enough weight. I am a firm believer in adding weight to the rear axle as long as it doesn't overly lighten the steer axle. From your numbers you should be fine from a weight point of view. Our numbers are much more aggressive than yours and it has proven to be fine. In fact it has been very beneficial as the added weight on the rear axles provides the traction we need in rough areas. One thing to watch is to keep the height of the overhang such that it isn't dragging on uneven surfaces. We go offroad at times and that was important to us. Also the front jacks on our 5er need to be all the way up as the overhang will accentuate the movement when crossing uneven ground. Finally keep an eye on the swing out of the rear overhang in tight quarters. Backing will be incredibly responsive and the 5er will track close to the HDT on turns. We have enjoyed our setup for years and I expect you will enjoy your new rig. Good luck and happy travels. THANK YOU very much. We got our steel delivered today from PG Adams. They did a fine job getting it to me .Time to get busy Link to comment Share on other sites More sharing options...
Alie&Jim's Carrilite Posted November 29, 2018 Report Share Posted November 29, 2018 If steel got delivered yesterday, some pics of the new bed ought to be along shortly! Jim's Adventures Old Spacecraft.... Who knows whats next Link to comment Share on other sites More sharing options...
runaway parents Posted November 30, 2018 Author Report Share Posted November 30, 2018 9 hours ago, Alie&Jim's Carrilite said: If steel got delivered yesterday, some pics of the new bed ought to be along shortly! Try to get some this weekend haven't figured out how to make pics smaller for posting. will talk to kids and have them walk me threw the prosses Link to comment Share on other sites More sharing options...
Chad Heiser Posted November 30, 2018 Report Share Posted November 30, 2018 No need to make pictures smaller to post here. Use this link, drag pictures you want to post here into the box (or browse to them). You will get a link to paste here that makes the picture show regardless of what size it is. 2009 Volvo 670 with dinette/workstation sleeper - Walter 2017 DRV Mobile Suite 40KSSB4 with factory mods, dealer mods and personal mods - now in the RV graveyard 2022 DRV Full House MX450 with customized floor plan 2018 Polaris RZR Turbo S (fits in the garage) 2016 Smart Car (fits in the garage or gets flat towed behind the DRV when the RZR is in the garage) My First Solar Install Thread My Second Solar Install Thread & Photos and Documents Related to the build My MX450's solar, battery and inverter system - my biggest system yet! chadheiser.com West Coast HDT Rally Website Link to comment Share on other sites More sharing options...
runaway parents Posted December 1, 2018 Author Report Share Posted December 1, 2018 On 11/29/2018 at 5:28 PM, Chad Heiser said: No need to make pictures smaller to post here. Use this link, drag pictures you want to post here into the box (or browse to them). You will get a link to paste here that makes the picture show regardless of what size it is. So I went to the link you suggested it mentioned something about cookies. There is when it went off the rails hmmm COOKIES!!!!!!!!!!! Cookie monster has nothing on this guy. Ok got cookies in hand .Now what. Still wont post pictures. Don't know what cookies have to do with posting pictures. but they are darn good. Chad see what you have to deal with .Dw has to deal with this 24/7. I can stand 80,000 lb concrete wall panels all day long .Build ridged frame buildings all day long Build truck beds all day long . But when it comes to " cookies" it is over my computer skill capability's . There's got to be a way to simplify this to make it a little easier. Link to comment Share on other sites More sharing options...
mrchips Posted December 1, 2018 Report Share Posted December 1, 2018 So many flatscreen engineers. I love all the responses. We are re-living almost what I went through when I built my bed except no one has yet to say you were going to kill everyone on the highway including women and children...lol Here is a reference for the OP. I have a 2013 Volvo 730 with a 227: WB. From the back of my cab to the end of my bed is 19'6". From the center of my rear axle to the center of my hitch is roughly 10'. From the center of my hitch to the end of my bed is 1'. My trailer pin weight is 4800 lbs. I haul a 6K lb 4 door Jeep Rubicon. I unload the front end of the truck 1025# when loaded. Front when loaded is slightly over 9K# (would have to look at the weigh ticket again). I have less tail over hand than a school bus. I actually went and measured a school bus. My overall bed weighs slightly over 5K#. It is way over built, but will not break. I have about 12K miles on the rig since finishing the build. I have had one issue, the truck rear air springs adjusted to fast from side to side making the trailer sway some. I talked to Donvel Controls and they built me a set of control valves that slowed the air transfer from side to side and I have a rock solid tow now with zero sway. From my experience, everyone that gives you all the armchair antics and says it won't work, or you will kill people, or you will be popping wheelies, or you will have no control...etc has never built a truck. They run a short truck that someone else built and can't imagine how anyone could run something so long. With that, you have to be cautious of the teeter totter effect on uneven ground. With this much over hang you will close the gap between the nose of your trailer and the closest object on your bed very quickly. If the front end of your truck climbs, or the rear dips it does transfer a lot of angle to the rear of the truck, just beware. Aside from the handling is awesome, backing is fast but very maneuverable. Tracking forward is nearly identical to truck tracks. Tail swing is no issue (be aware). Build your bed, enjoy your truck. I tried getting help from those in the know when I started mine, I got the same answers as you, if I received answers at all. I finally said screw it, did all of my own calculations, had a plan B if plan A didn't work and went to work. MOST of the naysayers that have now seen it say wow, that is nice and it works great....lol Link to comment Share on other sites More sharing options...
runaway parents Posted December 2, 2018 Author Report Share Posted December 2, 2018 6 hours ago, mrchips said: So many flatscreen engineers. I love all the responses. We are re-living almost what I went through when I built my bed except no one has yet to say you were going to kill everyone on the highway including women and children...lol Here is a reference for the OP. I have a 2013 Volvo 730 with a 227: WB. From the back of my cab to the end of my bed is 19'6". From the center of my rear axle to the center of my hitch is roughly 10'. From the center of my hitch to the end of my bed is 1'. My trailer pin weight is 4800 lbs. I haul a 6K lb 4 door Jeep Rubicon. I unload the front end of the truck 1025# when loaded. Front when loaded is slightly over 9K# (would have to look at the weigh ticket again). I have less tail over hand than a school bus. I actually went and measured a school bus. My overall bed weighs slightly over 5K#. It is way over built, but will not break. I have about 12K miles on the rig since finishing the build. I have had one issue, the truck rear air springs adjusted to fast from side to side making the trailer sway some. I talked to Donvel Controls and they built me a set of control valves that slowed the air transfer from side to side and I have a rock solid tow now with zero sway. From my experience, everyone that gives you all the armchair antics and says it won't work, or you will kill people, or you will be popping wheelies, or you will have no control...etc has never built a truck. They run a short truck that someone else built and can't imagine how anyone could run something so long. With that, you have to be cautious of the teeter totter effect on uneven ground. With this much over hang you will close the gap between the nose of your trailer and the closest object on your bed very quickly. If the front end of your truck climbs, or the rear dips it does transfer a lot of angle to the rear of the truck, just beware. Aside from the handling is awesome, backing is fast but very maneuverable. Tracking forward is nearly identical to truck tracks. Tail swing is no issue (be aware). Build your bed, enjoy your truck. I tried getting help from those in the know when I started mine, I got the same answers as you, if I received answers at all. I finally said screw it, did all of my own calculations, had a plan B if plan A didn't work and went to work. MOST of the naysayers that have now seen it say wow, that is nice and it works great....lol What year is your Rubicon and how long is it? We own a 05 ford explorer which is 190 inches long. Don't want to trade it for a escape which is shorter we are hoping it will fit on the truck. If it does it will save a lot of money. Our bed is basically the same as yours. Link to comment Share on other sites More sharing options...
mrchips Posted December 2, 2018 Report Share Posted December 2, 2018 2017 Rubicon. Jeep lists it at 173.4". With my winch and bumper I am just about 15' or so overall WITHOUT the spare tire mounted. Link to comment Share on other sites More sharing options...
runaway parents Posted December 2, 2018 Author Report Share Posted December 2, 2018 1 hour ago, mrchips said: 2017 Rubicon. Jeep lists it at 173.4". With my winch and bumper I am just about 15' or so overall WITHOUT the spare tire mounted. Thanks for the info. Explorer is not going to fit time to down size. Link to comment Share on other sites More sharing options...
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