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Old 05-23-2011, 03:23 AM   #1 (permalink)
WestCoast2500HD
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Stretching a Car Hauler

I picked up this trailer from a buddy for a sooong. He used it to tow a Sprint Car and has Storage/Workspace in the front.

Problem is I want to haul a fullsize truck on the thing and keep the front Storage/Workspace.

Can I stretch the trailer from right in front of the axles?
Whats the length limit on a tandem axle in Kalifornia?

Thanks for any and all help.
This would be the longest/heaviest thing i've towed and appreciate the wisdom.
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Old 05-23-2011, 03:52 PM   #2 (permalink)
jscheumann
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A sprint car is a whole lot lighter than a full size truck. That trailer doesn't look heavy enough to haul a full size truck on it now (even before it is stretched). But I could be wrong. I am only looking at a photo, you know.

What is the weight rating on that trailer? How about the axles and tires?

Moose.
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Old 05-23-2011, 10:50 PM   #3 (permalink)
Premis
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Based on the wheel size I would say those are 5k axles. A full size truck would be pushing it.
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Old 05-24-2011, 12:30 AM   #4 (permalink)
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I think I would sell it and get a heavier trailer. Just doesn't look all that great for what you want.
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Old 05-24-2011, 01:36 AM   #5 (permalink)
WestCoast2500HD
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it's built on 4"x1.5" C channel frame. Looks to be 4 frame rails lengthwise.

the wheels are 5 lug on 225/17-15s.

I can't find a load rating on the axles from outside the trailer. I'm not getting my dockers dirty so a closer inspection will have to wait.

i'm not trying to convince myself its a car hauler, just stating facts.
i'll try and get better pics.
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Old 05-24-2011, 12:16 PM   #6 (permalink)
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Quote:
Originally Posted by WestCoast2500HD View Post
it's built on 4"x1.5" C channel frame. Looks to be 4 frame rails lengthwise.

the wheels are 5 lug on 225/17-15s.

I can't find a load rating on the axles from outside the trailer. I'm not getting my dockers dirty so a closer inspection will have to wait.

i'm not trying to convince myself its a car hauler, just stating facts.
i'll try and get better pics.
I retract my previous post, a 5 lug wheel most likely indicates a 3,500 pound axle. In that case there is no way you an do it. You need a pair of 7,200 pound axles, those are usually 8-lugs.

Can it be done? Probably. Would I be caught dead hauling a truck on that after stretching it or even within a few miles of you pulling it. Hell no!

Look at it this way, if you cause a crash due to a poorly or under built trailer for the load your insurance could deny the claim. So, can you afford to lose everything you own?

You could buy the correct trailer and lose a little bit of money or you could overload that trailer and you may lose everything.
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Old 05-24-2011, 04:18 PM   #7 (permalink)
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Quote:
Originally Posted by Premis View Post
I retract my previous post, a 5 lug wheel most likely indicates a 3,500 pound axle. In that case there is no way you an do it. You need a pair of 7,200 pound axles, those are usually 8-lugs.

Can it be done? Probably. Would I be caught dead hauling a truck on that after stretching it or even within a few miles of you pulling it. Hell no!

Look at it this way, if you cause a crash due to a poorly or under built trailer for the load your insurance could deny the claim. So, can you afford to lose everything you own?

You could buy the correct trailer and lose a little bit of money or you could overload that trailer and you may lose everything.
3,500 pound axles on car haulers all day. (i googled)

I think my limiting factor is the 4" channel. All the fullsize haulers are at least 5" channel. I think this was a hint to ditch the K5 and build a Buggy.
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Old 05-24-2011, 08:03 PM   #8 (permalink)
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Quote:
Originally Posted by WestCoast2500HD View Post
3,500 pound axles on car haulers all day. (i googled)
Car haulers, Yes. TRUCK haulers, no.

Two 3,500 pound axles equal 7,000 pounds capacity, throw in 700 of tongue weight (10%) and you are at 7,700 pounds. That is sufficient for a 4,000 pound car, not a 8,000 pound truck.

Remember, you need to count the weight of the trailer in the capacity. Say you have two 3,500 pound axles (7,700 pound capacity with tongue weight) and the trailer weighs 2,000 pounds (probably about what that trailer weighs empty) you now have 5,700 pounds you can add to the trailer.
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Old 05-24-2011, 10:05 PM   #9 (permalink)
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No offense to the OP but when I see threads like this I have to think if you are asking the question then you should not be the engineer of the project. Trailers and trailer safety are one thing I take pretty seriously and without getting on a soap box the only thing I can say is if you do not have the welding skills or the engineering know how then buy a trailer for the job.
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Old 05-24-2011, 10:27 PM   #10 (permalink)
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Between the box/storage weight and what you put in it and the truck on it, the axles are not heavy enough. Add to that the stretch big frame or not having a frame welded together is very questionable to me. (so much so I will not pull a trailer like that, exception being if I know the welding abilities of the welder, or if it was done proffesionally)
To much liablilty. Also that trailer looks like an old beat up pice of junk. Any idea what the rims are rated for, tires even trailer tires? Seems like well it worked for me.
Sell it, and buy a proper trailer.
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