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Swing-out extension brackets allow you to adjust the location of your HappiJac truck camper jacks to give you additional clearance needed for dually pickup trucks. Includes 2 brackets and installation hardware.
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're take a look at the swing out extension brackets for the HappiJac truck camper jacks. It's for a quantity of two brackets. Now, these swing out extension brackets allow you to adjust the location of your HappiJac truck camper jacks. The swing out bracket kit is a durable solution for jacks that need extra clearance like on a dual wheel chassis application or just a camper that wants extra stability when loading and unloading.These brackets will offer a 3.5 inch to 4.5 inch extension for the HappiJac camper jacks depending on your existing bracket location. Basically, these will swing out 90 degrees. So you can see here just to show you how it works, when you mount these, the spring will be at the bottom.
This'll mount to your camper and your jack will mount to this part here. So when you push in on that spring at the bottom, it'll release it and you can see as you rotate at 90 degrees, that it'll lock into position. So it rotates it out that extra few inches. And then to push it back, it'll go back to the other position. So very simple to operate.Does include everything shown here on the table, the two brackets, the installation hardware, nice set of detailed instructions that'll describe how to install it.
And these parts are made in the USA. But that should do it for the review on the swing out extension brackets for the HappiJac truck camper..
These bad boys are great I can now put my one ton under the truck camper with very little problem Nice job I thought I was going to have to buy a new camper to fit my one ton

Mark
4/26/2026
Just fine I am now interested in a upgrade on the camper to a larger unit with one slide
Yes, this is a pair. You just need to extend the front jacks to get over a dually. You can do the rear jacks, just double the cost. These are strong, fit exact in the old Atwood brackets, and look professional. Again, I like etrailer. Fast shipping and follow-up to make sure I’m satisfied. Which I am.
Exactly what I needed, thank you. One small issue though, the bolts provided only worked for one bracket as one set of the bolts was not metric. Had to purchase some metric bolts for one side. Not a big deal but did take a trip to the hardware store to finish the install.
Glad I had this product as an option. Easy installation and arrived quickly.
Driver side bracket was missing the spring and lock nut. Called etrailer and they sent the parts.
Very helpful for lining up and backing in for truck camper loading.
It being a kit it should come with all brackets needed to put these on. It doesn’t disappointed.
I needed these for a camper we are purchasing. It has Happijacs on it but since I have a dually I needed the extra width. Solid well built units. Fast free shipping.

Michael
7/10/2025
Great. No issues
I like the stability the happy jacks extension provides.much easier to unload/load the tv.
Worked as advertised. Shipping snafu that too a phone call to sort out and my trip was almost ruined if these didn’t show up on time, but it worked out with 6 hours to spare. So all good. This is my third order and customer service has been great every time. ExCelt for the hold time. Popular place I guess!
These brackets went on a 1998 Bigfoot 2500 10’6” truck camper and I had less than an inch to spare from fenders on each side. Super tight. And if they were any wider, when the camper is in the truck and you swing them forward to close the doors, they would hit the jacks. So you’d have to run the camper back further... so anyway. Just good enough to get job done. Well made product.
Always great customer service, support, and product availability. The HappiJac swing-outs are well engineered and strong. This is the third set I have purchased for three different campers. The instruction sheet is well written and easy to understand. Installation is simple if you follow the instructions.
The Product works extremely well. For my application I had to make an intermediate plate that had shorter holes to attach to the camper. The mechanism and build quality of the extension is very well made. I was able to attach it to the adapter plate that I made. For others who might buy this keep in mind the holes are 7 1/4" apart. I had holes on the camper that were short distance apart so an adapter was required plus adding additional holes for the outside of the extension. You would need a drill press to get the holes exact. Once done this mated to the camper and the photos show the beginning and end result. Would be nice if a bracket with oblong holes could be added to the kit to help fit various size campers.
Very well made and specific for my application, using a dually to fit under our Northern Lite truck camper.
Perfect fit for a fine product. Easy in stallation.
Well made and sturdy but was not wide enough to go around the fenders on my Chevy 3500.
What I was looking for, perfect replacement for a damaged one
Product seems well build ,, the packaging seemed lacking
Very stout, good fit...........worked perfectly with the Happy Jacks
I needed theses swing out extenders to load my camper onto my dually. Greg was very helpful with my order and getting them to me timely. Perfect fit and easy to install.
I give it a 4.5 stares. FYI I have not given anyone 5.0 stares.
Easy install and swings perfect.
Works great, feels a little loose to me but it is probably all in my mind.
Couldn't have been smoother from order to installation.
These are very heavy duty and bolted right up to my front jacks. Plenty of room for by dually truck to back in.
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Gwendolyn Y.
4/25/2025
I'm glad these helped save you from a trip to a dealer for a new camper! Where are you headed to for your next trip?