Semi truck rear end bounce I rode at wide-open throttle every mile – out of safety! I couldn’t let a semi-truck pass me trundling along at 50 mph; the crosswinds alone could rip me out of the saddle! Give semi trucks a wide berth as they pass you. My first thought was that I have a bad tire. Enjoy our hassle-free online checkout or call to speak to an expert. In this blog post, Cush Suspensions will explore the issues that that can cause this and provide practical solutions to give you a smoother and safer ride. Steve breaks down some of the most common sources of this sh Thank you for that information. Impulse is force multiplied by time, and time of contact is the same for both, so the impulse is the same in magnitude for the two trucks. When your truck has bad shocks, the cabin will feel as if it’s shifting drastically backward when you accelerate. Using a goose neck for this pull, K,City to AZ. Jul 5, 2016 · 2004 GMC Sierra 2500HD 4x4 6. May 14, 2022 · I have a 2008 Quad Axle Livestock Trailer that has a shake/bounce. An axle is a rod that connects the wheels and holds their weight. And i mean it shakes to the point you cant see if a swift driver or a #### boeing 747 is next to you. An air leak or clog in the airline like ice. Understanding Axle Configuration. Jan 15, 2020 · Remove nuts from the bolts securing the retainer clips to the axle. Get great deals on semi truck axle shafts at TRUCKiD. The ABS valve is Bendix TABS-6 Basic. 3L IDI & 6. The axle could be placed anywhere between the center of mass and the rear end. From 2000's with 7. Three-axle vehicles are commonly observed in heavier trucks and light semi-trailers used in tractor-trailer combinations, featuring a front axle and two rear axles. com/JOHNDANIEL Support a Veteran Driver ⬇For Freightliner, Western Star, St Semi truck axles play a key role in supporting the vehicle’s weight and helping it move. I started out just doing needed work on my 2000 250 SD 4x4 but was attacking this issue too. This sign may start happening before any of the other symptoms occur. I have 2013 ram 1500 my truck did the same at 60mph, took it to hella shops and they said there was no problem I even dropped the truck 2in in the front and 4in in the back but didn’t help so I ended up putting 22 rims and it helped out the wobble now it only wobbles at 100mph May 16, 2025 · TruckPaper. The truck has 400,000 miles and this issue has been going on for about 3-4 months now. Check the axle when your vehicle hits the bump on the road because it damages its axle. Semi trucks typically have multiple axles to distribute weight evenly. Take a bicycle wheel thats off a bike. Possible causes for this can be flat tires on the dual wheels like on the inside that cannot be easily seen. This problem has spanned many years from what I've read and people I've talked to, but this has been most prevalent in the CCLB Super Duty platform. I have 2S/1M basic setup under trailer. After a while I realized it was the truck and it only seems to do it when I'm going about 60 to 65 and when there is little to no tension on the driveline. Regardless of the roadway, concrete, asphalt whatever, it BOUNCES. Shop our online inventory of Heavy Duty Semi Truck parts, including New/Rebuilt/Used Axle Assemblies for sale. 888-903-4343 Dec 26, 2013 · Hey everybody, I'm starting this thread to show my theory of the SuperDuty Hop that's common on our trucks. I did have a 3 axle alignment done 3 times. I would have your alignment checked. A trailer gets loaded and unloaded from the rear. Bounce being the entire truck BOUNCES, acts like all 4 tires are out of round, it does not appear to be coming from any one corner or end, the whole dang truck. Semi Truck Rear End Bounce. 5030 Sign In/Register 0 6. The 2011 is King Ranch and has no vibration 20" rims and tires factory. Rims can be slightly off center to the hub and cause big-time shakes. If you drive a vehicle with a damaged axle, it starts vibrating. The bounce gets progressively worse if I stay between 40-45 mph but clears right up if I slow down or speed up out of that speed range. Now, when we tow there is a bit of bounce from the trailer, I'm assuming mostly due to the single axle design. in the rear of the truck:confused: Why? *Help real invention & discovery with BUY ME A COFFEE at https://www. 3s to 2014s with The US Department of Transportation set the standards for the dimensions of semi-trailers that, legally, can use the highways across the country. Mar 2, 2019 · Hey guys, I have a 2012 Freightliner Cascadia with a front end vibration (wobble) whenever I reach 45-50 MPH. According to KIRO 7, a sedan hit a southbound day cab flatbed semi truck while attempting to change […] Jul 15, 2009 · I understand the axle positions and the "problems of mis- alignment. The GVWR on the trailer is about 4400 lbs which is well within my tow capacity. The most common reason for this issue is worn-out shocks or suspension components, which can lead to instability and discomfort during your drive. I have 18 Continental A/S tires on it. He stopped at the same tire place and we had them Dec 7, 2012 · Posted 1/10/2013 20:51 (#2813721 - in reply to #2738715) Subject: Re: Semi truck rear end bounceing at high speeds Still found nothing. Some of them can be straightened, some, unfortunately have to be replaced. to/c/64/eq/shocks-and-strutsYour car or truck is bouncing while driving? Andy has some simple steps to eval Apr 7, 2019 · Trucks that vibrate while driving is definitely not of the best things that could ever happen, though this can be even scarier when the same occurs while a trailer is being pulled. In this article, we will discuss the signs of failing shock ab Medium and heavy-duty trucks in North America often come in different types of setups depending on the demands of the weight load: the single drive axle, commonly found in box trucks and medium-duty trucks, tandem drive axles (also called a 3-axle semi-truck), or a tri-axle setup (referred to as a 4-axle heavy haul truck). Understanding the causes helps us find solutions. Feb 24, 2020 · Since you have a ABS light, one or both of the wheel sensors are bad. A traditional clutch-actuated manual gearbox with a computer-controlled shift actuator and clutch, automated manual transmissions are also part of Weller’s line of remanufactured driveline components for Eaton UltraShift, Volvo I-Shift compatible, for Mack mDRIVE compatible, Detroit DT12, ZF AS Tronic, and Eaton Endurant. At first I thought it was the spring ride trailer I was pulling. Yes, it will be lower, but your front end will bounce about considerably more. I notice sometimes if I’m going 65 and I start coming to a coast that it’ll have the same bounce. We provide the following truck repair services at a Full-Service Center located near you throughout the United States. We also stock output (thru) shaft assembly replacement parts for drive axles. Vibrations at the front of the semi-truck can also be of some concern in many cases. The thing is, unless the heavy vehicle has cross locks (a power divider) and/or diff locks, once one set of wheels (duals) loses traction, it keeps spinning and creates axle bounce. Would adding air bags reduce the bounce from the trailer? Nov 29, 2017 · 1999 - 2016 Super Duty - The ole, bouncing ?hopping? when breaks applied - After changing u-joints, shocks all around, breaks, hubs, 2 calipers, i still have the hopping when breaks applied hard. Semi trucks can shake for several reasons, affecting comfort and safety. The rear of a semi truck can bounce for many reasons, usually at speeds of over 40 mph. com/JOHNDANIEL Support a Veteran Driver ⬇️For Freightliner, Western Star, S Apr 28, 2016 · You could have bent the axle. I used to ride a Honda Rebel 250cc motorcycle (not much bigger than a dirtbike) down the Interstate. 97 C1500 57 auto 2WD maroon Trailmaster Conversion. My friend fought a front end shake and short lived steers for 2 years before our local mechanic pulled the front end and found the axle bent. It starts at 45 mph, and goes away at 50 mph. We have heavy-duty truck axle shafts for a vast range of vehicle applications, including linehaul, off-highway, specialty and defense. youtube. Weight distribution is less of an issue here. Mar 5, 2024 · Your semi-truck may be bouncing due to worn-out shocks or suspension components, causing instability and discomfort. Dec 11, 2024 · A small accident or hitting an obstacle on the road can bend the axle, causing your truck to shake, especially on rough roads. Jun 5, 2006 · Pre-Power Stroke Diesel (7. Tires can be mis-mounted off center in the rim and cause the same. Nov 27, 2023 · Many truck and trailer drivers experience this issue and begin to hunt for a solution to their bouncy trailer. The accident happened on Wednesday, May 28th on southbound Interstate 5 near Seattle, Washington. Sep 13, 2003 · 1987 - 1996 F150 & Larger F-Series Trucks - Rear end bounces - Ok, Here is my question. Help real invention & discovery with BUY ME A COFFEE at https://www. 9L) - rearend bounces - When in reverse the rear end starts to bounce pretty hard. Our rebuilt axle shaft lineup includes front-drive and non-drive axles as well as single, tandem and tridem rear-axles. Credit: m. Apr 6, 2022 · The bounce gets progressively worse if I stay between 40-45 mph but clears right up if I slow down or speed up out of. On the other hand, four-axle vehicles can be heavy rigid trucks with two . 7, c/c, srw, lb) I get a "bounce" in the back of the truck right at 40 mph and it stops right at 45 mph. The driver initially tried to back out of a tight spot and eventually drove forward, completely … Shop for New Auto Parts at 1AAuto. Ive had a bounce in my rear end No jokes you perverts since I bought my truck in 2006. The seat shakes, the steering wheel shakes, the hood shakes, the shifter shakes, the rearmost of the cab shakes. I said no and was totally confused. As you know, there is usually a lot of play in a trucks steering system and if the alignment is off, one tire will be trying to fight the other and that can cause the issue you described. Jul 7, 2022 · 4. Jul 15, 2009 · I understand the axle positions and the "problems of mis- alignment. com is the go-to source for buying and selling new & used Trucks & Trailers. I am having problem with my trailer. When empty it’s most noticeable reaching 70mph. When you drive at high speed, it bends axles and causes the shaking of the vehicle. Apr 4, 2018 · Sway bars control body roll in turns, not bounce. Mar 2, 2024 · By addressing these potential causes, you can effectively diagnose and resolve the issue of a semi truck shaking at 45 mph. We also have a wdh with sway control. Then repeat the test but tape a few ounces of something to the wheel and try it again. They come in different types and configurations to suit various needs. The trailer is a single axle trailer. While this isn’t particularly dangerous in the handling, it can be a clear sign that your shocks have lost function. Nov 13, 2010 · 6. com . Semi-Truck Gusts. I've heard using a Semi truck can cause damage to the frame of the trailer, due to the stiffness of the truck suspension. You could have some engine problems if the front end of the semi-truck is vibrating. There's one consideration that a semi-truck has that a school bus doesn't. FleetPride offers a wide range of semi truck repair services for heavy-duty trucks and fleets (Class 6-8 vehicles). This is why its inadvisable to cut your springs to lower your car or truck. What causes a semi truck to shake at high speeds? At high speeds, a semi truck may shake due to issues like wheel imbalance or alignment problems. 7L Power Stroke Diesel - Rear end bounces @ 40-45 MPH - Ever since I picked up my truck (350 6. He told me where to go. buymeacoffee. It can be very difficult to pinpoint the issues, and many truckers spend a lot of money fixing the wrong things. Squeeze the airbag to compress the bellows. The bounce would come and go. I did notice that once again my rear right axle seal appears to be seeping BARELYI used 2 cans of brakeleen making double sure everything was spotless. The 2014 has similar vibration bounce but stops faster than mine as mine continues for quite a bit longer. So, you only options are changes in shocks, springs and weight distribution hitch(if trailer involved) We offer a wide variety of semi truck parts and accessories from brand names that earned the respect of professional drivers and mechanics. The engine in the front is heavy and the rest of the bus is mostly empty space. It happens, and it will eat your steers slicker'n s***. Apr 11, 2012 · Alignments, spring pins, king pins, springs will NEVER fix a shake or bounce or shimmy. Jun 21, 2008 · Truck Maintenance - BAD vibration / bounce - 96 FLD120, 750k miles, 1 month old drives, 1 day old steers, ALL balanced Driver told me the truck had a bad vibration. Hold the axle and spin the wheel as fast as you can. I even had my mechanic ride beside my truck in his car and could see the rear end bouncing. Email Us Call Us 888. 7, c/c, srw, lb) I get a bounce in the back of the truck right at 40 mph and it stops right at 45 mph. This problem should be taken care of quickly to prevent further damage. Aug 5, 2019 · My truck shakes. We had put new drives on about 1 month ago and I was concerned we may have had a bad one in the batch. 0L Gas 4 Door Automatic 4L80E 2 owner truck (I'm the second owner) All stock, for now. I notice it when I drove one the other day. It is going to shop to have rear end lasered to check for straightness from end to end and also to have each wheel spun balanced while still on truck. Right now the truck has. Nov 12, 2010 · Ever since I picked up my truck (350 6. Suspension problems causing the axle to bounce. A common issue that many semi truck drivers face is a shaking sensation when the vehicle reaches a speed of 45 mph. It wasn't until my mechanic asked if they used a torch to align the rear. Dec 3, 2009 · The drums are visually ok, they feel okDoesn't mean they are not warped though. The bounce gets progressively worse May 3, 2022 · Semi Truck Rear End Bounce. Our semi truck rentals include single axle and tandem axle day cabs and tandem axle sleepers. com http://1aau. See numerous threads regarding frame harmonics but no solution to fix. This will allow you to rotate the bracketed airbag assembly around the axle for removal. These can cause vibrations to increase as speed goes up. Fixing Semi Truck Shaking Issues. A shorter spring is softer and more easily flexible. Newer trucks may have differently designed softer riding systems allowing for more bounce than older trucks. . Sep 18, 2023 · Two-axle trucks consist of front and rear axles and are typically light vehicles such as cars or trucks. In a head-on collision: Newton's third law dictates that the forces on the trucks are equal but opposite in direction. Once the retainer clips removed, be sure to disconnect air line from top of airbag. It uses the bearing or the axle splines as a reluctor. When I apply the brakes I get a serious bounce Oo. Buyers can find a full range of Sleeper Trucks, Day Cab Trucks, Dump Trucks, Box Trucks, Tow Trucks, Cab & Chassis Trucks, Service Trucks / Utility Trucks / Mechanic Trucks, Flatbed Trucks, Vans, Dump Semi-Trailers, Dry Van Semi-Trailers, Reefer Semi-Trailers, Flatbed Semi-Trailers, Lowboy Semi-Trailers Jun 9, 2020 · The truck to be lifted must be in a very stable configuration with the park brake on and the wheels chocked so that the jack can lift it straight up. It is important to regularly inspect and maintain the shock absorbers to ensure the safety and performance of the vehicle. Hoping still just as badIt's definitely got to be something in the rear as the front feels absolutely fine and all of the brakes up front (rotors, pads We offer heavy-duty truck rental for all your business needs. When loaded it’s most noticeable when I reach 60mph on an incline. Damaged truck axle. Like truck other than this annoying bounce. Oct 14, 2014 · This would be easily confirmed. Then while holding the wheel, try to shake it up and down like a wobbly tire would act on your truck and see what it wants to do. It feels like the the tires are basketballs being dribbled. Generally speaking, a 6x4 or higher standard on road truck, has has 4 sets of duals (wheels) putting the power on the road. It could be the tires once again. Mar 23, 2022 · Shaking in your semi truck and trailer is one of the most common problems we hear from truckers. This is caused from a rotating part that is constantly generating unbalanced forces to cause and sustain the shake or bounce. Jan 19, 2019 · My 2500 4dr LLY has a bad "bounce". However, in some instances, it could be something more serious. The front axle steers the truck, while rear axles provide power and support. The bounce gets progressively worse No one was seriously hurt after a sedan crashed into the side of a tractor trailer and knocked off a semi truck axle. The shake is the same throughtout the cab. Semi-trailer dimensions may vary significantly because different types of semi-trailers have different sizes. The rear of a semi truck can bounce for many reasons usually at speeds of over 40 mph. Check out the dimensions of different semi-trailers below. Jan 4, 2023 · Failing shock absorbers on a semi truck or trailer can have serious consequences for the vehicle's handling, stability, and tire wear. If you have been experiencing your semi-truck bouncing, it could be due to several factors. It sits somewhere near the rear wheel bearings and they are threaded into the axle housing. When applying the brakes, the ABS doesn't see any pulses from the sensor so it is assumed it is locked up, thus the ABS engages. According to KIRO 7, a sedan hit a southbound day cab flatbed semi truck while attempting to change […] Dec 27, 2015 · I have 2 386 Peterbilts that both have developed a sort of hop at speed. At 55 Bobtail its pretty bad. Remove airbags from the brackets. Mar 6, 2015 · Have friends with 2011 and 2014. Brakes that need to be adjusted at the chambers or the cams are worn down. The entire trucks got the same shake all throughout it. Jack stands should be placed in a solid area under the truck and the truck lowered down onto them. The shakes most certainly show up when you hit right around 50 mph (80 km/h), however as always, it can depend. it's 2014 utility 4000dx dry van . May 24, 2022 · Crunch! A semi-truck lost its four back wheels after rolling over safety barriers in Doral, Florida. The farm jack should not be holding the truck up while it is being worked on. It’s Aug 24, 2014 · I had the same problem. If you are unsure if this is the problem, remember that at The Truck Savers we offer a free inspection service, which we call "La Bailada It’s Jan 28, 2021 · Why does my Ford truck bounce so much? Broken a broken coil spring could also cause excessive bounce in your truck. I have 18" Continental A/S tires on it. May 10, 2021 · Rear-End Squat During Acceleration. It's going to be a one time pull. 940. uplchx awvrle avlpdn ftic ppy skx axib qdjaq wjhycu fmir
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