Best 1999 GMC Sierra Gooseneck and Fifth Wheel Adapters

I pull a 14' goose neck dump trailer and a 10,500 lb fifth wheel camper with a 2008 GMC Sierra 1500. Both are obviously all the truck should handle anyways but I would never try it with a different hitch. There's no play, none, in either even after nine years with the gooseneck receiver and one year with the fifth wheel companion. I travel for work and have pulled the camper 6.5 hours. 10,500 lbs on a bw hitch in your bed is more safe than 5000lb on s tail receiver no doubt. Worth every penny.

easy to assemble. great instructions good product

Easy to install and does the job.

Great product! Ive pulled a 42' to Hell and back not one problem. It is heavy, but it's very solid. My fifth wheel hitch fit straight in. Way cheaper than having to put rails in if you have a factory ball hitch in the bed. Its It's also nice that it's removable so you can haul furniture, or things that can't sit crooked ect. Great product, should last forever. Definitely would recommend

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I pull a 14' goose neck dump trailer and a 10,500 lb fifth wheel camper with a 2008 GMC Sierra 1500. Both are obviously all the truck should handle anyways but I would never try it with a different hitch. There's no play, none, in either even after nine years with the gooseneck receiver and one year with the fifth wheel companion. I travel for work and have pulled the camper 6.5 hours. 10,500 lbs on a bw hitch in your bed is more safe than 5000lb on s tail receiver no doubt. Worth every penny.

Plate was bowed during welding process when plate was attached to tube. The plate and holes of inter tube did not line-up with outer tube so plate is square with trailer, off 10-15 degrees, when pin is installed thru hole. Will be able to use it on the one 5-th wheel hitch but not the other one that needs a special plate for the slider hitch to work, being that the tube is not square w/trailer.

I ordered the Bulldog adapter because I believe their quality is good. The construction of the Bulldog hitch adapter was good. However, the 4” tube was not perfectly round, approximately.030 out of round. This shouldn’t have been an issue, but since my trailer is used and had a Temco hitch originally, the tube wouldn’t slip in. I chucked the Bulldog in the lathe and skimmed .030 of the diameter and it went right in. This review is not written to criticize Etrailer or Bulldog. Just be aware if you’re working with a different brand hitch other than what is listed, there is a possibility of fitment issues.

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I returned it, because it was going to change the structural integrity of my 5th wheel camper. Did not use the product.

Real fast shipping, and a competitive price. Easy to follow directions and simple installation. This is a great product.

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I have a 2019 f250 with the 6.5' bed and didn't want a heavy, bulky fifth wheel hitch taking all the bed space up. I had the fifth wheel package already installed as well, so it didn't make sense to not use that. I about went with the ultimate hitch that Anderson offers but decided against that as I have seen many reviews where the hitch failed. I saved a bunch of cash going with this product and it is awesome. I installed it by myself in my drive way in about 2 hours start to finish. I have zero issues turning so close to a 90*. I have a headache rack on my truck and it gets within an inch or two of hitting that but not my truck. I don't have any issues with the king box hitting the bed either like some people stated. The test ride today went very well. It rode very smooth and I have plenty of bed space for my dogs and gear. I would highly suggest this product if you are on the fence like I was. I will see how this will hold up over the years but I doubt I will have any issues. The shipping effected the sheath covering over the cable, I contacted the company, sent some pictures and they will be sending me a brand new part. I love this company and the products they stand behind!!!

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I have been using the Ranch Hitch #3100 Straight Adapter for 3 years. Converting the 5th wheel to goose neck was awesome. Much easier to hook up and a smoother, quieter pull. After purchasing a new trailer I noticed that the trailer was too close to the cab of my short bed truck. I found the Ranch Hitch #3139 with 8" offset adapter. It installs easy and gives me 8 more inches away from my truck cab. Excellent! Turning corners is much more comfortable!

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I just received my Demco Gooseneck-to-5th Wheel Trailer Hitch Adapter today. Installed it, hooked up to my first 5th wheel camper I just purchased, and pulled it home from about an hour away. Installation, hook up, and pulling was very easy and I am very pleased with the hitch. My rig is a 2007 GMC 2500 HD pulling a 2007 Sunnybrook Bristol Bay 3150 RL.

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I installed the Demco Recon Gooseneck to 5th Wheel Hitch yesterday. The Hitch was installed on a Reese Remove A Ball Hitch and fit perfectly after cutting the rubber mat in the bed of my 2012 GMC Sierra 3500hd Duramax Diesel Dually. I will be hauling a Keystone Avalanche 5th Wheel.

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Was just what I was looking for I have a b&w flip over ball and couldn't put rails I with it so I went with the dm6140 to solve my problem and it worked perfectly thank you so much

In stock, great price, fast shipping and American Made.

I pull a 14' goose neck dump trailer and a 10,500 lb fifth wheel camper with a 2008 GMC Sierra 1500. Both are obviously all the truck should handle anyways but I would never try it with a different hitch. There's no play, none, in either even after nine years with the gooseneck receiver and one year with the fifth wheel companion. I travel for work and have pulled the camper 6.5 hours. 10,500 lbs on a bw hitch in your bed is more safe than 5000lb on s tail receiver no doubt. Worth every penny.

easy to assemble. great instructions good product

I installed this yesterday on my flatbed with recessed ball and moved our 41’ sierra 20 miles to our shop for service and the hitch works perfect! I couldn’t be more satisfied in this 21k hitch and only took 30 minutes from the time I opened the box until it was installed and ready to go! This hitch is a must for recessed ball flatbed trucks

I just received my Demco Gooseneck-to-5th Wheel Trailer Hitch Adapter today. Installed it, hooked up to my first 5th wheel camper I just purchased, and pulled it home from about an hour away. Installation, hook up, and pulling was very easy and I am very pleased with the hitch. My rig is a 2007 GMC 2500 HD pulling a 2007 Sunnybrook Bristol Bay 3150 RL.

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Great product. Very well constructed and easily exchanges with my goose neck ball reciever.

Easy to install and does the job.

This product fits my fifth wheel hitch well and fits in the truck hitch as well. Have not pulled with it yet as winter storms are here. I expect it to work well. Expensive for as simple as it is. Hoping it is built well. Nice That I was able to get a used one at a reduced rate. Missing the pads so we’ll see what kind of a difference that makes. Very happy with etrailer as a distributor. They make the purchase easy and quick free delivery. They Always follow up on my satisfaction with my purchase’s.

This thing works. No hassles with hitching and I don't have to swap out my fifth wheel from the truck (which pulls the camper too) to use the equipment trailer. The fifth wheel is easier to hitch and disconnect than the ball hitch that it replaced. I see no disadvantages, except that my neighbors can't just borrow my trailer.

Great product. Very well constructed and easily exchanges with my goose neck ball reciever.

Plate was bowed during welding process when plate was attached to tube. The plate and holes of inter tube did not line-up with outer tube so plate is square with trailer, off 10-15 degrees, when pin is installed thru hole. Will be able to use it on the one 5-th wheel hitch but not the other one that needs a special plate for the slider hitch to work, being that the tube is not square w/trailer.

Great product, fast shipping, excellent communication, definitely recommend these guys!! We painted the square tube/king pin tube red and installed it. Works great, but there is not much of it to see in the pic. Take my word, well built & very heavy duty!!

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This thing works. No hassles with hitching and I don't have to swap out my fifth wheel from the truck (which pulls the camper too) to use the equipment trailer. The fifth wheel is easier to hitch and disconnect than the ball hitch that it replaced. I see no disadvantages, except that my neighbors can't just borrow my trailer.

Great product. Very well constructed and easily exchanges with my goose neck ball reciever.

This thing works. No hassles with hitching and I don't have to swap out my fifth wheel from the truck (which pulls the camper too) to use the equipment trailer. The fifth wheel is easier to hitch and disconnect than the ball hitch that it replaced. I see no disadvantages, except that my neighbors can't just borrow my trailer.

Great product. Very well constructed and easily exchanges with my goose neck ball reciever.

This thing works. No hassles with hitching and I don't have to swap out my fifth wheel from the truck (which pulls the camper too) to use the equipment trailer. The fifth wheel is easier to hitch and disconnect than the ball hitch that it replaced. I see no disadvantages, except that my neighbors can't just borrow my trailer.

Great product. Very well constructed and easily exchanges with my goose neck ball reciever.

Easy to install and does the job.

Heavy and doesn't fit flat on my truck bed, had to add some heavy duro rubber shims between this and the bed floor. I paired this with the C611-624 gooseneck hitch.

I love this hitch I put it on my 35’ Astoria fifth wheel it pulls great and the shock absorbers help with a smooth ride.we took a ten day trip from Ga to Maine last September and had no problems with this hitch. I guess the only negative is that it’s not as easy as a regular fifth wheel hitch to hook up by yourself but after a few times you can line it up ok. The best thing is that no big hitch taking up space in my truck bed just a ball

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Order arrived on time. Packaging looked almost perfect with one corner of the box slightly damaged. Two of us installed the hitch without too much of a problem. It is heavy. Used some WD40 on the inside of the mount. Balance it on the tailgate of the truck. One strong man plus an old guy was able to get it installed. I will update this once we have a couple thousand miles on it.

I had borrowed an adapter from someone. It was the same as the one I purchased from you. I made several trips pulling a four horse goose neck trailer with no problems, so I decided to purchase an adapter of my own.

Fantastic service and follow up