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Author Topic: Curt Manufacturing Hitch #15400 rated at 17,000 lbs  (Read 268 times)

MrC.

  • Single Axle Driver
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  • Posts: 28
Curt Manufacturing Hitch #15400 rated at 17,000 lbs
« on: October 05, 2017, 09:15:12 PM »

I am having some problems with this hitch, they tell me it fits our trucks.
Any thoughts?
I am being told to drill out my frame, I don't think that will work either?
MrC.
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someotherguy

  • 3500HD Hero
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Re: Curt Manufacturing Hitch #15400 rated at 17,000 lbs
« Reply #1 on: October 06, 2017, 10:50:57 AM »

Nope...look it up on their site; that hitch is for 2001-up GM trucks (not including the 2001-2002 examples of the 3500HD's we discuss here.)  If you just say "3500HD" to them, they think you mean the modern 3500HD which is really just a regular 3500 and has nothing in common with the REAL 3500HD's other than the company they came from.

I don't honestly know of any trailer hitch made specifically to fit the frames on these trucks.  They're probably out there though; they are an industry standard 34" width and parallel, intended for upfitting of all different types of utility beds, flatbeds, wrecker beds, etc. you would think someone out there has a standalone hitch that bolts up.

Richard
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06 Silverado ISS / 06 Silverado SS / 06 300C SRT8

MrC.

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Re: Curt Manufacturing Hitch #15400 rated at 17,000 lbs
« Reply #2 on: October 06, 2017, 01:20:17 PM »

Hey Someotherguy, nice to meet you, love the black truck you built.

I did explain thoroughly to the people at Curt, their site suggested a class 3 for our trucks, I wanted a class 5, I called them and specifically told them about these trucks Frame width, wheel size and GVWR. BEFORE I ordered it on amazon for $185 w/ free shipping. I don't like modifying brand new parts, but today I called again to Curt today and they now suggest (after seeing the pictures I posted here, placing a bottle jack between the sides of the hitch and spread it the needed 1 inch to  line up the holes. that's a half inch on each side, then I would only need to drill 1 hole on each side, near the back. The holes do line up front to back with factory holes and there is a notch to clear the factory rivet in the last crossmember. So, with that said, this hitch will bolt onto our trucks after spreading. They also make a 20,000lbs class 5 with 2.5 receiver that with spreading will bolt up to these trucks.

MrC.
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RPF207

  • 3500HD Driver
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Re: Curt Manufacturing Hitch #15400 rated at 17,000 lbs
« Reply #3 on: October 09, 2017, 12:40:04 PM »

I'd just build a custom hitch unless you don't have access to a welder. Another thing is something that most people don't realize is that the 2000-2007 one tons arent HDs, they don't even say HD anywhere on them. The only HDs 2000-2007 were the 1500HDs and the 2500HDs, which compared to THEIR regulars were definitely HD. Next time you see a 2000-2007 GM 3500 check out the badge you won't see or ever see one that says HD. Don't remember what year they started saying HD again but today's 3500HD is pretty stout, but still not as stout as the original GM HD.
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1999 chevy HD 4x4 135.5" 6.5 nv4500 bw4470 Dana 70 HP 10 lug front

Due to recent budget cuts the light at the end of the tunnel has been turned off

MrC.

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  • Posts: 28
Re: Curt Manufacturing Hitch #15400 rated at 17,000 lbs
« Reply #4 on: October 09, 2017, 01:01:53 PM »

Ok guys here the skinner.
Curt Manufacturing hitch #15400 WILL fit these trucks, yes there site recommends a class three hitch but they do make a 34 inch frame width hitch rated at 17,000 or 20,000 with a 2.5 receiver whole.

I have went round and round with them over this, they instructed me to "spread" the mounting arms outward 1 inch or 1/2 on each side. Below you can see I used some wood and bottle jack, it worked perfectly. It then lined up with the 4 factory wholes in the frame, and cleared the rivet holding the last crossmember in place, I did have to drill 1 whole on each side, this hitch requires 6 bolts total.

Yes, I have a few welders, and can weld pretty good, but when my life or someone else's is involved, I err on the side of caution, I gladly spent $185 for this hitch on amazon and got free shipping, now I will never have to worry about, did I weld it good enough.

Thanks for all the help, I hope this will help others when looking for a hitch that fits.
MrC.
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SlowBoat

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Re: Curt Manufacturing Hitch #15400 rated at 17,000 lbs
« Reply #5 on: October 17, 2017, 09:27:59 PM »

How much ground clearance (approximately) do you have beneath the receiver?  Looks like it will be rather low, but it just may be an illusion.
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2001 Chevrolet 3500HD 159.5 WB, 8.1L, 5spd, 4.63
2000 GMC Sierra 3500HD 159.5 WB, 6.5L, 5spd, 5.13
1996 Chevrolet 3500HD 159.5 WB, 6.5L, AT
1995 Chevrolet 30HD Box Van, Bad gas engine, AT
1997 GMC Sierra 3500 CC, DRW, 6.5L, AT, 3.73

MrC.

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  • Posts: 28
Re: Curt Manufacturing Hitch #15400 rated at 17,000 lbs
« Reply #6 on: October 17, 2017, 10:30:28 PM »

I was concerned also. I have 14 inches with a straight ball. I towed with it today loaded 8k lbs. backhoe on my 24ft. Trailer. truck didnt squat at all trailer set level. It towed great.
It has a built in six inch drop in the receiver. You can run a drop hitch upside down and raise the tow point if you had a taller trailer.

I will be using a pintal with ball bolted to a plate hitch it has 3 different height settings. I will post picks asap of todays tow.

MrC.
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RPF207

  • 3500HD Driver
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Re: Curt Manufacturing Hitch #15400 rated at 17,000 lbs
« Reply #7 on: October 18, 2017, 07:05:48 AM »

Just be careful with those bolt on pintles and a stiff suspension. We sheared all four bolts off the pintle pintle going over a bridge at only 40 mph. Trailer was only grossing 10,000 lbs. safety chains saved the day. On my HD I fabricated an overkill pintle plate with a 2 1/2" receiver tube and I have a one piece forged 2 1/2" pintle that slides in.
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1999 chevy HD 4x4 135.5" 6.5 nv4500 bw4470 Dana 70 HP 10 lug front

Due to recent budget cuts the light at the end of the tunnel has been turned off

MrC.

  • Single Axle Driver
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  • Posts: 28
Re: Curt Manufacturing Hitch #15400 rated at 17,000 lbs
« Reply #8 on: October 18, 2017, 01:30:12 PM »

Thanks for the heads up RPF207. Was it grade 8 bolts holding that pintle on?

Here is a pic after my first test pull.
I have to say it seems under powered. Once on flat road it handled great felt very stable and secure, but hills seem to really take there toll on the 454.
I loaded the tractor farther back and checked the over load springs to see if they were touching. with the tractor towards the back of the trailer they did not touch at all but were closer than unloaded. so I moved tractor all the way forward on trailer. now one side of the helper is just barely touching, the other side is closer but does not touch. the backhoe weights 8500lbs and the trailer (6 ton) weights 2600lbs.

you can see the trailer is very flat at this hitch height. I used a straight tri ball for this pull.

Again, I hope this helps others needing a hitch.
I also installed a brake controller and R/V style plug all "Curt" brand. Install was pretty easy and works great. I had to tie into the yellow wire coming from the brake pedal switch for the correct signal for the controller.

Thanks
MrC.
« Last Edit: Today at 10:04:50 AM by MrC. »
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RPF207

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Re: Curt Manufacturing Hitch #15400 rated at 17,000 lbs
« Reply #9 on: October 18, 2017, 04:40:59 PM »

I believe they were grade 8 bolts. This was two years ago. Truck looks great!
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1999 chevy HD 4x4 135.5" 6.5 nv4500 bw4470 Dana 70 HP 10 lug front

Due to recent budget cuts the light at the end of the tunnel has been turned off