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Author Topic: Any Tips Or Tricks On Installing A Flatbed On A Truck  (Read 705 times)

Offline Boss .300 winmag

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Any Tips Or Tricks On Installing A Flatbed On A Truck
« on: September 05, 2021, 07:59:20 PM »
Has anyone done it themselves?
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Offline Norman89

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #1 on: September 05, 2021, 08:36:05 PM »
Lots of times, forklift is your friend or camper jacks or highlight jacks. For ease of service put a junction box on the frame and hook your bed harness and truck harness inside it kept nice and water tight sprayed with noco treatment. Also wire your trailer wiring into it. Anytime there is a lighting issue 2 screws and everything is open to testing quick and easy. Make sure whatever bed you get will work nicely with your fuel filler, you don't want the filler neck laying flat and causing burping and filling problems it gets really aggrivating and you won't make that mistake twice. If it will get loaded by equipment a rub rail is very useful. Under bed storage boxes are always nice along with goosneck ball for big trailers. Led lights are cheap and seeing the bed at night is nice 👍

Offline Boss .300 winmag

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #2 on: September 05, 2021, 08:47:37 PM »
I bought a CM bed thatís already wired, including the fifth wheel electrical/ ball recessed in the bed. The dealer drew a picture for me on how they mount them. I think my fuel filler neck is going to be higher than it is now with the shimming required to clear the shock mounts.

Just looking for other peopleís ideas.

Thanks
"Just because I like granola, and I have stretched my arms around a few trees, doesn't mean I'm a tree hugger!
Hi I'm 8156, our leader is Bearpaw.
YOU CANNOT REASON WITH A TIGER WHEN YOUR HEAD IS IN ITS MOUTH! Winston Churchill

Keep Calm And Duc On!

Offline Born2late

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #3 on: September 05, 2021, 08:48:31 PM »
starting on putting one on one of my second gen dodges this week.
I'm putting a access hole in the bed to change the fuel sending unit so i don't have to drop the tank to do it.(60 gal quite the pain).
I've seen them bolted to the frame and welded.I will be bolting mine.
will Be using my forklift to lift off and on.
Leave enough room between cab and headache rack. seen some where they were to tight.
Normans idea with the junction box for the lights works awesome!

Offline Boss .300 winmag

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #4 on: September 05, 2021, 08:52:24 PM »
starting on putting one on one of my second gen dodges this week.
I'm putting a access hole in the bed to change the fuel sending unit so i don't have to drop the tank to do it.(60 gal quite the pain).
I've seen them bolted to the frame and welded.I will be bolting mine.
will Be using my forklift to lift off and on.
Leave enough room between cab and headache rack. seen some where they were to tight.
Normans idea with the junction box for the lights works awesome!

I was told 2 1/2 inches cab to bed clearance, plus to bolt the front, weld the back, and something on the middle for filth wheel towing.
"Just because I like granola, and I have stretched my arms around a few trees, doesn't mean I'm a tree hugger!
Hi I'm 8156, our leader is Bearpaw.
YOU CANNOT REASON WITH A TIGER WHEN YOUR HEAD IS IN ITS MOUTH! Winston Churchill

Keep Calm And Duc On!

Offline Norman89

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #5 on: September 05, 2021, 08:58:05 PM »
Personally I would advise to not weld it. Frames are NEVER meant to be welded on, the heat weakens the steel and in time it will crack every single time. Through bolts with rubber pads as isolators between frame and bed using the stock mounting holes in the frame or large ubolts have never failed me, including my 26' conveyor loading trucks at work that get royally beaten 12 hours a day loading and unloading roofing materials loaded by forklifts and delivering to the roof. Beds have never shifted or loosened in 10 plus years of service

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #6 on: September 05, 2021, 09:03:07 PM »
Personally I would advise to not weld it. Frames are NEVER meant to be welded on, the heat weakens the steel and in time it will crack every single time. Through bolts with rubber pads as isolators between frame and bed using the stock mounting holes in the frame or large ubolts have never failed me, including my 26' conveyor loading trucks at work that get royally beaten 12 hours a day loading and unloading roofing materials loaded by forklifts and delivering to the roof. Beds have never shifted or loosened in 10 plus years of service

My truck is a 2004 2500 Ram, havenít taken the bed off yet to see what I have to work with yet. U bolts sounds like a really good idea.👍

What do you use for rubber pads?
"Just because I like granola, and I have stretched my arms around a few trees, doesn't mean I'm a tree hugger!
Hi I'm 8156, our leader is Bearpaw.
YOU CANNOT REASON WITH A TIGER WHEN YOUR HEAD IS IN ITS MOUTH! Winston Churchill

Keep Calm And Duc On!

Offline Born2late

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #7 on: September 05, 2021, 09:03:43 PM »
2-1/2 should work good.
I don't like welding to the frame because if i need to take it off for any reason your stuck.
If they have you weld the back why not the front also?
The bed of my truck is bolted on now and it works. I will have more brackets then the bed had before.
I always do stuff overkill so should be fine.
Mine has a fifth wheel also in the bed.

Offline Boss .300 winmag

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #8 on: September 05, 2021, 09:06:09 PM »
2-1/2 should work good.
I don't like welding to the frame because if i need to take it off for any reason your stuck.
If they have you weld the back why not the front also?
The bed of my truck is bolted on now and it works. I will have more brackets then the bed had before.
I always do stuff overkill so should be fine.
Mine has a fifth wheel also in the bed.

They use angle iron in the front with bolts for a stop.
"Just because I like granola, and I have stretched my arms around a few trees, doesn't mean I'm a tree hugger!
Hi I'm 8156, our leader is Bearpaw.
YOU CANNOT REASON WITH A TIGER WHEN YOUR HEAD IS IN ITS MOUTH! Winston Churchill

Keep Calm And Duc On!

Offline Heiny

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #9 on: September 06, 2021, 07:19:47 AM »
I ran different height tubing across frame rails at stock bed bolt locations. Bolted these down then welded angle clips from them to the bed rail. Spent most of the time shimming bed up and down to find the right height.

Offline huntandjeep

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #10 on: September 11, 2021, 08:28:58 PM »
Personally I would advise to not weld it. Frames are NEVER meant to be welded on, the heat weakens the steel and in time it will crack every single time.
There are 100s of frames across all auto manufacturers that have parts , tabs , etc welded to them from the factory
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Offline rtspring

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #11 on: September 11, 2021, 08:44:43 PM »
Personally I would advise to not weld it. Frames are NEVER meant to be welded on, the heat weakens the steel and in time it will crack every single time. Through bolts with rubber pads as isolators between frame and bed using the stock mounting holes in the frame or large ubolts have never failed me, including my 26' conveyor loading trucks at work that get royally beaten 12 hours a day loading and unloading roofing materials loaded by forklifts and delivering to the roof. Beds have never shifted or loosened in 10 plus years of service

Wrong!!   You should talk to a welder, he or she may teach you a few things.   Iíve probably welded on 100ís of frames.  Not one ever cracked.  Metallurgy on frames is pretty basic steel, nothing special about it.  No pre heat post heat and the likes.  Just a good welder and someone who knows what they are doing. 
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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #12 on: September 11, 2021, 09:12:53 PM »
If its welded behind the axle even if it weakend the frame you would be fine. Bolt and weld away.
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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #13 on: September 11, 2021, 09:12:59 PM »
Personally I would advise to not weld it. Frames are NEVER meant to be welded on, the heat weakens the steel and in time it will crack every single time. Through bolts with rubber pads as isolators between frame and bed using the stock mounting holes in the frame or large ubolts have never failed me, including my 26' conveyor loading trucks at work that get royally beaten 12 hours a day loading and unloading roofing materials loaded by forklifts and delivering to the roof. Beds have never shifted or loosened in 10 plus years of service

I believe youíre thinking of medium duty & heavy duty frames, which use tempered steel. I think tempered steel requires some specific processes to weld on or drill, but pickups donít use tempered steel frames, they use mild steel. Theyíre welded on all the time without troubles.

Offline Norman89

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Re: Any Tips Or Tricks On Installing A Flatbed On A Truck
« Reply #14 on: September 16, 2021, 07:38:31 AM »
I can tell you if you weld a frame on a Kenworth, Peterbuilt, sterling,paccar, freightliner, heavy ford Chevy or dodge you instantly just voided the warrenty. And dealer will tell you to get bent on repairs, you ignored the sticker ON THE FRAME from the factory instructing you not to do so. Previos shop I worked at had multiple dump trucks red flagged at the scales for welded frame patches where the torque arms on a mack had cracked the frame and had been welded back in. They started to plate the inside of the frame so it couldn't be seen that the frame was welded so they wouldn't get red flagged but DOT had there number by that point and they started replacing frames to keep DOT off there back. I have over 50 trucks in my fleet and every truck that was retired was from a frame that cracked from a flatbed being welded on. Still have a 89 Peterbuilt sitting in the back of the yard with a broken frame. I have welded flatbeds onto Toyota wheeler trucks that were mostly tube chassis and it cracked in the first year of being a trailer queen, but I wouldn't do it on a over the road truck ever. When insurance gets involved and they find that stuff that's how you end up losing your tail end in a lawsuit after a wreck where someone gets injured. This is why most flatbeds now come with a bumper built into it and tow hitches for bumper pull gooseneck and fifth wheel rails. Some are option with brackets to brace the hitch to the frame but never welded that I have seen. In the chance of a wreck you sky rocket your odds of totalling the truck with a welded frame to bed connection because there is nothing to give. This is why trucks are now built with a "crumple zone" in the frame that will give out before the passenger compartment takes any severe damage  I saw this many many many times when I worked in the wrecking yard. People would buy up any truck with a crumple zone drill out the rivets replace the bent section and resell the trucks. Rangers were a common one to get bought instead of disassembled. The last 15 trucks I have ordered at work have all been ubolt or plate and bolt systems for bed mounting, I'll stick with it and my insurance company is happy with it
« Last Edit: September 16, 2021, 07:51:43 AM by Norman89 »

 


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