Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Rough pavement doesn’t have to mean a rough ride. The Lippert Bolt-On Shock Kit uses heavy-duty gas shocks to absorb road shock and vibration so the trailer stays steady and the ride feels smooth. Each shock helps manage axle spring movement so gear stays put and the trailer tracks better behind you.
This kit is made for leaf spring suspension systems with 3,500-lb overslung axles. The included tie plates and U-bolts replace your existing hardware to give the shocks a secure mount on 2-3/8" round axles. It’s a smart way to add true shock absorption to a standard trailer setup.
Everything needed for installation comes in the box. The upper brackets mount directly to the trailer frame using the included self-tapping screws, while the shocks attach to the tie plates below. It’s a straightforward bolt-on job that doesn’t require welding or special tools.
The shocks and brackets have an enamel finish that resists corrosion from rain, salt, and road grime. The durable coating helps your suspension parts stay protected and working smoothly after miles of use.
Each shock measures 13-1/2" when extended and 8-5/8" when compressed, giving plenty of movement for typical trailer travel. A minimum of 4" clearance between the inside of the tire and the I-beam flange ensures the shocks operate freely. A 90-day warranty covers the complete kit.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody, this is Jeff at etrailer.com. Today, I'm gonna take a look at the Lippert Bolt-On Shock kit with the heavy duty gas shocks for thirty-five hundred pound axles. Now this will instantly improve your ride with the suspension upgrade kit. It uses these heavy duty gas shocks to absorb any road shock and vibration and provide a more comfortable towing experience. Does include all the pieces here laid out on the table. Has the two upper mounting brackets, the two lower mounting tie plates, the four U-bolts with the installation hardware, the two gas shocks with the mounting hardware for the shocks.
Now this is a very easy bolt-on installation. These included tie plates and U-bolts will replace your existing hardware. The upper brackets right here is what will mount on your trailer frame with the included self-tapping screws and the shocks will attach to the tie plates on the bottom and to the upper brackets to help dampen movement of your axle. They do have a nice enamel finish to resist corrosion. A few specs on this, the application.
This is for a leaf spring suspension system on a two-and-three eighths-inch diameter, thirty-five hundred pound overslung axle. Now the minimum clearance between the inside of the tire and the I-beam flange is four inches. The shock length when it's fully extended is 13-and-a-half inches and when it's fully compressed is eight-and-five eighths inches. But that should do it for the review on this Lippert Bolt-on Shock kit with the heavy duty gas shocks for a thirty-five hundred pound axle..
Customer Satisfaction Score:
77% were satisfied with this product
23% of customers were not satisfied
Ratings & Reviews
I ordered two shock kits for a 3500 axle. One kit was complete with the right parts, the other kit had the rite parts except for the plates that go under the springs, the ones in this kit were for a larger axle kit. If I can't have those plates sent I will return the whole kit. I only need the plates that go under the springs. It would be nice to have instructions of some sort with the size of drill bit for the self threaded bolts. I think this kits are made very cheap with no respect for those installing their kits. I will not reccomend them to anyone
What a difference the trainer road so smoothly it was like it wasn't back there. Shocks and the kit that came with it are phenomenal. It handly much better.
The second bottom plate isn't correct. The u bolt don't fit the plate. I need a replacement part. The u bolts need to be longer also. I received this item over a week ago and was able to work on this Saturday and when unboxing the items, I noticed the difference is size of bottom shock plate bolt pattern was wrong. Please send me the correct item and I'll send this defective item back.
Thank you
Shocks work great, travel trailer tows much smoother (sent picture after installation)
Upper brackets will mot work on trailer
Lazer S.
12/2/2025
Sorry to hear that, Peter. Can I ask why it isn't fitting? We do hear this every now and then, but almost never get to hear why.
Ordered this kit and received it in a couple of days. Install was straight forward. First side took about 3 hours due to time spent measuring and laying it out to make sure the shock wouldn't over compress or extend. Second side took about an hour. The U bolts in the photos are not the ones supplied in the kit. These were installed prior with the lowering block. U bolts in the kit are standard length.
the four shocks added great stability to my trailer. They help eliminate sway and trailer hopping not to mention shaking the stuffing out of the trailer.
Shocks made a huge difference in the bounce while towing the trailer. Very worthwhile purchase and installation. I printed the installation instructions from your web site because the instructions included were worthless.
My small dumping trailer was bouncing and swaying all over the place. After installing this shock kit, it follows along like a dream. A more than worthwhile investment. Easy to install, great customer service. Thanks!!!
Just what my trailer needed
doesnt fit on the frame of my trailer as it is an I beam frame , now i have to get a shop to weld the top shock mounts to the frame , cost more for the welding than i paid for the shocks
Product arrived on time, with free shipping as compared to other vendors who charge more than $100 for shipping. Had to modify/ cut one edge of the upper shock mount to fit my Lippert frame (2018 Grand Design Imagine 2800bh). Straighforward installation, only issue is the kit comes with 8 self- tapping bolts ( need 5 bolts per upper mount). Definitely will order from Etrailer again.
Installed the shock kit at pulled the trailer across Texas, Oklahoma, Kansas, Nebraska, and South Dakota to through the Bad Lands all using back roads to see the country. The trailer followed smoothly and kept things inside in place. A great install to really improve the pull and control on back rough roads.
I am only posting this because you asked. I consider this a loss and just move on. My shocks blew out on the railroad tracks in Dodge City Kansas 1000 miles from home. I was on a trip to the west coast from TN. After I had returned home the warranty was over. I bought better shocks. The mount kit was ok, so far. My new shocks cost $83 delivered.
Have a 2016 Jayco Whitehawk Travel trailer. Because of our wonderful roads in Pa., chucking was a big problem with this unit. Has Lippert Wide Stance axels and the shock kit is the only thing available at this time to tame this bucking bronco. I installed them in driveway, 1 set on each axel. Checked the angle of the shocks and they are placed at a 39 degree angle because of the wide stance axels (max angle on shock is 45 degrees). Went on a 150 mile trip and what a difference. It is pleasurable to pull this RV now even when hitting these dips in road at 70MPH. I am pleased dealing with etrailer. Have purchased several items from them and have had wonderful service from them. Keep-up the good work guys and thanks for being a reputable Co. to deal with. Sam
Product:
First up - "Made in China" - just need to expect that kind of production. HOWEVER, the welds on the product looked very good-good penetration, etc. Heavy gauge steel, like you'd want; very good. U-bolts and hardware look appropriate for the task; cadmium coated and fine thread for good torque.
Brackets are not finished to a high aesthetic level (paint doesn't fully cover, welding splatter painted over, etc.), but hey, it's UNDER the trailer. Some Rustoleum takes care of the paint... Shocks look and feel "ehh" - serviceable. We'll see how it works. Fully anticipate replacing them with higher-end shocks some time down the road at a later date. No instructions in box; lots of instructions on the inter-web. That's the "made in China" part... But, the good side of that is, a lot of stuff for not much money to solve a specific problem out of the box, which SHOULD be fairly simple. I will likely weld the top plate in place instead of using the included, self tapping, plated screws (they look adequate as well, but I like welding and it doesn't loosen-ever).
This is going on a 5 x 10 utility trailer with some air bags as an "upgrade" to carry lighter, fragile loads when I want to.
Will update when I finish installation.
Retailer:
etrailer shipped on-time, good frequent communication, best price; what more do you want? Do business with them again? Absolutely.
Mediocre hardware, okay shocks, upper shock brackets are worthless.
I installed this kit on a single axle, spring under suspension, travel trailer. Ubolts were barely long enough and once torqued, there is only a couple threads showing outside the nuts.
The upper brackets are designed to be used on a box or c-channel frame. Since my trailer has an i-bean frame I had to have custom upper brackets fabricated. Even if the brackets included would have worked they would have required some work as they had welding splatter all over them and the welds didn't look too be the highest quality.
Postal Service was terrible UPS GRRAT
Not compatible with my trailer
Very good product so far. Have had them on for nearly a year, maybe 2000 miles on them. We do have an anti sway bar on our 180bh sportsman classic but no distribution hitch. I chose to put bags under our 1500 EcoDiesel. So the sway is controlled by the anti sway bar but we still have a considerable amount of what I call role in the camper. Top to bottom the camper would lean side to side with our Texas panhandle winds. So these shocks have nearly eliminated the role. I did have to weld the brackets on the frame rather drilling and bolting. Not sure if the universal kit isn’t universal or due to the fact I did and axle flip on our camper caused this issue. Either way very glad I got them, doing what they are supposed to do. Thanks e trailer.
Cary
5/24/2020
Doing good still, pulled camper from Amarillo Texas thru Louisiana, Mississippi, Alabama on our way to Disney world, then back they Alabama, Tennessee, and Arkansas for vacation last year. We put about 4000 miles on the camper and shocks still doing what they are supposed to do, controlling the role.
It turned out I needed to adapt the shock kit to my trailer's frame design, so I had a welding shop make mounting brackets which are bolted on to the frame, with the shocks then bolted on. I spent, as I recall, around $130 for the welding and installation, but the shocks work work well, the ride is better, and the trailer sustains less punishment from poor or potholed roads. I'm glad I installed this kit and recommend it.
Not a trailer, but...
We needed a set of shocks for a three-wheeled motorcycle truck conversion for our resort/farm in upper Thailand. I had to pack it in my luggage for the trip over. The vehicle came with no shocks on the back axle and the ride was really bad. This kit, with a bit of modification, really did the job and the ride is now significantly better in terms of smoothness and handling. Shocks were a bit long, but it worked out OK.
The bolt on shock kit is of good quality. However, my utility trailer is a light-weight single axle which rides close to the ground so installation was difficult and required some minor fabrication (bending) of the bracket. I was able to move the bracket attachment and locate it where it would function. Not the ideal location but it works well for my purposes and keeps trailer loads from bouncing around when you are on the road.
The order arrived on time. I ordered two shock kits, one was complete and correct but the second one was wrong. The package appeared to be factory sealed but one of the U-Bolt plates was for a 3’’ axle, my axles are 2 3/8’’ and it had been previously installed. I have a camping trip planned in just over 24 hours so needless to say, I was in a bind. Customer Service was not much help, I was told the only option they had was to reach out to Lippert and advise them of the problem. Then Lippert would have to ship out a replacement plate but that wouldn’t arrive until the following week. I even offered to purchase a whole new kit but since I called later in the day they wouldn’t be able to get it to me until the following week. Apparently, their UPS is different from the one we use, I can pay for a package to be delivered almost anywhere in the US the next day. I guess they don’t have any UPS Stores in Missouri.. End of rant, not a happy customer!
Do you have a question about this Trailer Suspension Part?
Condition: Surface Scratches
Notes: Item has minor cosmetic scratches.
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Brooke M.
7/27/2023
Thank you for reaching out and letting us know about the missing pieces. I see our customer service team has gotten those parts in the mail and shipped!