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  1. Vehicle Suspension
  2. Ford
  3. F-350, 450, and 550 Cab and Chassis
  4. 2012
  5. Timbren
FITS 2012 Ford F-350, 450, and 550 Cab and Chassis
Timbren Suspension Enhancement System - Severe Service - Rear Axle
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Timbren Suspension Enhancement System - Severe Service - Rear Axle

Item # TFR350TTCC
Retail:$468.32
Our Price: $398.07
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Vehicle Suspension
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2012 Ford F-350, 450, and 550 Cab and Chassis

F-350

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The best technical support and full vehicle suspension installation instructions. Great price F-350, 450, and 550 Cab and Chassis vehicle suspension and expert service. Ford F-350, 450, and 550 Cab and Chassis, 2012 vehicle suspension by Timbren are available from etrailer.com. For expert service call 1-800-940-8924 to order your Timbren Suspension Enhancement System - Severe Service - Rear Axle part number TFR350TTCC, or order online at etrailer.com.
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2012 Ford F-350, 450, and 550 Cab and Chassis - Timbren Suspension Enhancement System - Severe Service - Rear Axle

  • Jounce-Style Springs
  • Rear Axle Suspension Enhancement
  • Extra Heavy Duty
  • Timbren

8,000-lb Capacity hollow rubber springs sit above the rear axle to help stabilize and level your Ford F-350, 450, and 550 Cab and Chassis. Provides a comfortable ride by absorbing road shock and improving stability. Ideal for trucks with slide-in campers or an in-bed salt spreader.


Features:

  • Improves suspension, handling, and safety
    • Ideal for trucks with slide-in campers or an in-bed salt spreader
  • Provides additional support as needed so you always have a smooth, comfortable ride
    • Allows the leaf spring ample movement while cushioning light loads
    • Becomes more rigid as more weight is added
      • Increases stability - providing great performance while hauling heavy loads
      • Reduces vehicle sag
  • Works independently - side-to-side
    • Helps compensate for off-center loads
    • Reduces body roll when swerving and turning corners
  • Acts as shock absorbers, taking the brunt of bumps and rough roads
    • Extends the life of your vehicle's suspension
  • Includes 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required


Specs:

  • Capacity: 8,000 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • Limited lifetime warranty
  • Satisfaction guarantee


An example of sag on a vehicle's rear axle under a heavy load

Whether you're hauling heavy loads in your bed or cargo area or you're towing a trailer, you will often see the rear of your vehicle sag while the front end rises. In these cases, the rear axle is handling not only the weight of the cargo, but also more of the vehicle's weight. Because less weight is on the front axle, the front tires are making less contact with the road. Overall handling - traction, steering, and braking - is negatively affected. But the resistance from Timbren's Suspension Enhancement System works with your factory suspension to keep your vehicle level and improve your driving experience.


Diagram of the Timbren spring installed

The Timbren system comes with custom-fit brackets that are bolted onto each frame rail above the rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the spring sits, 1" above the axle. The inch of clearance allows the existing factory suspension to operate normally under light loads and standard terrain, ensuring the smooth, comfortable ride that you are used to.


Animation of a standard Timbren rubber spring

Timbren Suspension Enhancement Systems are designed to work progressively. When the hollow rubber springs are compressed, the convoluted design causes them to quickly collapse along the folds. Once the folds are compacted, the stacked barrel shape increases resistance, stiffening the suspension and keeping your vehicle level.


Timbren suspension system works to prevent body roll

Each hollow rubber spring works independently to support the driver's side or passenger's side of your vehicle. This is helpful when you swerve or make sharp turns. Each spring is activated when it is needed, so body roll is greatly reduced. The independent action also works well when you are hauling off-center loads.


An example of a trailers swaying

Because the vehicle handles better with the springs, less turbulence will be passed along to the trailer, and this helps to keep the trailer in line. Your driving comfort is further enhanced if the trailer does begin to sway (from a gust of wind or a passing semi), because the movement from the trailer is not transferred to your vehicle. This also works to make the sway subside more quickly.


An empty truck on a bumpy road without Timbren

Another great feature of the rubber construction is that the springs absorb most of the road shock, creating a smoother, more stable ride overall. Wear and tear on the factory suspension is also lessened because the rubber springs work to prevent bottoming out on rough roads.


Timbren Suspension Enhancement Compared to the Competition

Timbren's Suspension Enhancement Systems are much easier to install than air springs - there are no air hoses to run, no compressors or gauges to hook up, and no manual adjustments to make. The rubber construction makes Timbren's springs more elastic than similar products constructed of microcellular urethane. And more elasticity allows for a more comfortable ride because the rubber has more travel.



FR350TTCC Timbren SES with Aeon Hollow Rubber Springs - Rear Axle - Severe Service

Installation Details TFR350TTCC Installation instructions

Customer Satisfaction Score:


Customer Reviews

Timbren Suspension Enhancement System - Severe Service - Rear Axle - TFR350TTCC

Average Customer Rating:  4.7 out of 5 stars   (6000 Customer Reviews)

8,000-lb Capacity hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. Provides a comfortable ride by absorbing road shock and improving stability. Ideal for trucks with slide-in campers or an in-bed salt spreader.

by:
Ford F-350 Super Duty

Tried these with little hope of them doing much. Truck is a F350 4x4 dually with 9' custom utility body and rack. It's a beast. Well onto the helpers all the time. Air bag solution wasn't able to work with cab and chassis set up. So I replaced the jounce bumpers with these. Everyone that saw them was betting on them just blowing out. They have been on for a little over a month now. No longer is it on the helpers and the body sway is gone. And no they didn't just blow out. Very happy with both the product and how fast they arrived.



by:
2020 Ford F-350 Cab and Chassis

Easy to install.



by:

Great company!! Did what they said they would and shipped in a timely manner. Thank you!!



by:

great



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by:

I know it will be lovely when loaded or the trailer on. However,it rides like a wagon empty with brand new premium shocks and struts empty. Thud thud thud. You really cannot feel the shocks or suspension. Found exact same item plentiful for 60 bucks on eBay after I bought these for 250. I may cut these in half or put air bag on. I do not like the ride empty. No hard feelings. It is a good product maybe just not for me.



by:

About a 1/2 inch difference in gap at the bump stop perch but still within parameters. Truck sits perfect with trailer attached. Haven’t towed yet. After towing if they perform like they should will upgrade to a 5 star. Easy to install, definitely needed 2x4 and jack. 2011 Silverado ext cab with 30 ft Genisis 5th wheel.



by:

Was able to install these with a 15mm flex head ratchet wrench and lifted the rear of the truck to make it easier. 30 minutes to take off 4 nuts and put em back on. 2 minutes assembling the timbrens with the added spacer. I have a f350 with a salter and plow. Loaded with salt the lights shoot up and in the snow ?? it’s like hitting hyper drive and you’re blinded. These helped big time. Very happy so far.



by:

The pro: The longer, heavier bump stops worked great when hauling my mustang home from Chicago. The truck stayed level and handled great.
The con: I had to remove the bump stops for everyday use. They limited my suspension travel causing a stiffer ride.



by:

I am so glad I bought these for my truck. I was able to install them myself using a jack and jackstands. The ride is bit rougher now; but the suspension is totally awesome compared to before. I am able to haul a bit more weight when needed.



by:

Haven’t had it on long, but so far so good. 1999 F350 dually. Bolted up nicely. Total job took 10 minutes. Have hauled two gooseneck loads of hay and truck drives SO much better. Nice and level. Money well spent so far.



by:

very good product ,received just in time and fit perfectly on my GMC savana 2000 .Be sure to clean the two receptacle thats help.
très bon produit , reçu dans les délais et s'ajuste parfaitement . Assurez-vous de nettoyer le receptacle cela facilite l'installation.



by:

The timbrens actually did what they were suppose to do. However, once I starter driving out west I notice the timbrens were riding on the axle which cause the speedometer to jump around depending on the road. I would recommend them if you are hauling or towing a camper or RV. I was going to contact etrailer about maybe removing a spacer for one set however the other set came as one unit. The bottom line is the Timbrens does stabilize your load for safe travels. I will be contacting etrailer soon to assist in correcting the problem...Road trip from Idaho,Colorado,Wyoming,and Utah were beautiful... Thank you etrailer



by:

Definitely a must have when towing..stiff without a load but night and day difference while towing my travel trailer, better traction, steering and braking. Easy quick install..only issue I had was with the long bolts they sent with the spacer kit (optional for lift) the bolt diameter was too wide to fit through the holes on the bracket..but a trip to the local hardware store took care of that.



by:

Pros: Cheaper and easier to install than airbags, do the job when load is enough to compress the shock, with added weight or towing, then it stiffens the rear very nicely.
Cons: Doesn't do anything until there is 2-3cm of compressed shock. It sits above the contact point, doesn't touch. Under normal driving, there is no benefit/improved stiffness/anti sway in rear or a leveling of the factory rear sag in a 2022 or newer Toyota Tundra.
If had it to do over, would have put some kind of spacer in between product and upper included bracket, the supplied bolt is long enough to accommodate, to eliminate the gap, and lift the rear 1-2 cm. Should do it anyway, maybe when swapping to summer wheels next month.



by:

I’d seen similar products rated in the 4,000 lb ratings but I went with these. I’m not a mechanic but I removed the factory bump stops and installed both these in 30 minutes or less. I used my rolling jack and lifted from the drop hitch and easily removed the old ones and soapy water and 1/4 twist and these were on. Placed a block of wood in the space between these coils and lowered the jacks then pressed it with my tractor to confirm full engagement. I carry a lot of tools on a 2020 Chevy 2500 I do feel a bit of butt bounce on large bumps but other than that I’m very pleased.



by:

The order with Will at etrailer was great. He was very helpful and knowledgeable, Installation was not easy but not too bad, The hardest part was removing the factory pieces I removed them from below which was a blind nut removal operation. This is on a 2017 Mercedes Sprinter motorhome. After removal of the factory pieces I discovered that access is much easier on top between the tire and the mud flap, I turned the front wheels inward and they didn't have to be removed. The front of the motorhome had to be raised quite a bit to get the Timbren piece jnserted. Also I learned to tighten the bolt and nut in the Timbren bumper as much as possible before installation because there is no access to the bolt head when tightening the top nut to keep the bolt from turning, preventing tightening the nut.



by:

First off the product was beat up with paint/power coating missing in several places on both. I was putting on a brand new truck with less than 800 miles on it so I elected to touch up before install. I’ve hear a lot about Timbren but never had them. I had airbags on my F350 but when I switched to a new Tundra I went with Timbrens. I’m a bit disappointed in the ride. Feels like I can feel a “bump” in the truck from the rubber pick hitting the axle when I go on a bumpy road. Thinking I should have went with airbags. As far as having a load on the truck and helping with the squat, they do as they are advertised.



by:

I bought these to prevent the "squat" of carrying a load in a Ram 1500.It took only 30 minutes to install. Now when carrying a load or towing a travel trailer the truck is a better position.
The only thing you will notice is the smoothness of the ride. It's not, it is stiff. I'd rather have the stiff than the nose pointing to the moon.



by:

They do exactly what I wanted them to do. They support my boat trailer and when not towing, they don’t touch the bumpers everything’s great.



by:

These work great for giving you a solid towing experience when loaded heavy; however, when driving empty you definitely get the jounce bumper “into the air” experience when driving on moderate to rough roads. I have the recommended gap installed between the axle and the timbrens, but with terrible midwest roads and highways it doesn’t seem to be enough gap. Smooth roads it rides great. It’s driving 80mph on the expressway and hitting potholes or large cracks where these will hit causing uncomfortable harsh ride.

I’ve resorted to installing and then subsequently removing these anytime I use my travel trailer for longer trips (30minute removal time). I tow a 7000lb loaded travel trailer with an f150 and just needed something to make the soft half ton suspension from porpoising too much on bad-roads. Mission accomplished when towing as I said these things work great for heavy loads. It almost rides better with heavy loads…. I was going to give airbags a try but the reviews from others have scared me from those because even with airbags at the lowest setting you still get the jouncing on bumpy roads.



by:

Easy install took about 20 minutes on my 2017 Ram 3500 SRW. Had about 1/2 inch clearance as recommended. Loaded up my 5th wheel (2350 hitch weight) and about 200 lbs of gear in the bed. Just got back from a 800 mile camping trip through mountains of TN. You can really feel the difference around those sharp corners and uneven surfaces. The truck felt firm and controlled not hard and jarring as some have mentioned. Going over those overpasses with the wonderfully smooth (Not) joists was greatly improved. The truck would squat and rebound again, with a firm controlled response. Driving without a load felt the same as before without them. I would highly recommend these! Ordering from etrailer continues to be my go to option!



by:

So just got them installed today 3/27/24 haven't hooked up the 5th wheel yet but will be this weekend so we'll find out if they are good as everyone claims they are fingers crossed. Install was crazy simple took about 30min(had to find a wrench) have about 1/2in gap between the axle, really excited to test them. Will update the review after this weekend.



by:

Installed these Timbrens on my 2016 F350 to enhance the stability of my truck for a slide in truck camper. Have loved the results of them. They have noticeably helped leveling the truck/camper combo, and sway while driving. When the camper is off the truck these are not engaged. Have had no issues and would recommend them.



by:

The Timbren rear bump stops for 2020 Suburban were great quality and fit perfectly in the replacement of the original ones with no problems. The old ones pulled right out by hand with no hassle. When I installed the new ones I put 2x4 blocks that I cut underneath the bump stops. Then hooked up the 6,400 lbs travel trailer with about 750 lbs of tongue weight on it and they pressed right into place. The Suburban was more stable because it had less swaying while towing. I also gained about 1 inche more in the fender gap which means less rearend saging.


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See what our Experts say about this Timbren Vehicle Suspension

  • Suspension Enhancement for a 2012 Ford F-350 Cab and Chassis with 4-Wheel Drive
    I checked with Firestone and there are no air bag kits that fit the 2012 Ford F-350 cab and chassis models with 4 wheel drive but we do have other options. If your truck is going to be used as a service vehicle such as an ambulance or utility vehicle then I recommend the 8600 pound capacity Timbren springs # TFR350TTCC. For non-service vehicles you can use the 6k rated springs # TFR350CC. The great thing about these springs is that you will not have to add and remove air all the time....
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  • Suspension Enhancement System For A 2020 Ford F-350 Cab And Chassis With Service Body And B&W Hitch
    I will be more than happy to help you with a suspension enhancement system for your 2020 Ford F-350 but because your truck has a service/utility body the truck will have a narrower 34 inch wide frame and the Firestone Ride-Rite Red Label Extreme Duty Air Helper Springs # F95FV or any other air bag kit will not work. I recommend the Timbren Suspension Enhancement System # TFR350TTCC for your 2020 Ford F-350 Cab and Chassis. This kit will both work with the Redding service body and with...
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  • Recommended Timbren Suspension System for a 2023 Ford F-350 Cab and Chassis
    No, but I have a set that will. For your 2023 Ford F-350 cab and chassis, you will need the Timbren Suspension Enhancement System item # TFR350TTCC. This system has an identical 8,000 lbs capacity to the item # TFR350SDJ you were looking at. The Item # TFR350SDJ you were looking at only fits the regular 2023 Ford F-350 trucks. It won't be compatible with a cab and chassis model.
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  • Front And Rear Suspension Enhancement For A 2021 Thor MH On A Ford F-350 Chassis
    Yes the Timbren Suspension Enhancement System - Severe Service # TFR350TTCC for the rear axle, and the Timbren Suspension Enhancement System - Severe Service # TFF550SDH for the front axle will work great for your 2021 Thor Motorhome on a Ford F-350 chassis. Additionally, these springs have a capacity of 8,000-lbs, and will provide the additionally support that you need for a smoother, comfortable ride.
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  • Suspension Enhancement Recommendation for 2015 Ford F-350 with Utility Body
    I can help you with suspension enhancement that will work great on your 2015 Ford F-350 but since your truck has a service/utility body that would normally indicate you have a cab and chassis model truck that has a narrower 34 inch wide frame and for this variation of your truck there are no air bag solutions. The highest capacity suspension enhancement option we have for your truck is the Timbren part # TFR350TTCC which has an 8k capacity and replaces the jounce bumper and gives you...
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    Image 1 for
  • Will Timbren Rear Suspension Always Contact Axle on 2021 Ford F-350 Cab & Chassis
    So the overall height is 7-1/4 inches for the Timbrens that fit your 2021 Ford F-350 cab and chassis, which are the Timbren Rear Suspension Enhancement System # TFR350TTCC. They will indeed always be touching your axle, and that's actually what they are designed to do in order to help level and stabilize your truck. As for the life expectancy, you can expect the Timbren Rear Suspension Enhancement System # TFR350TTCC to last the life of your truck. They have a lifetime warranty and are...
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  • Rear Helper Springs of a 2012 Ford F-350 Diesel 4x4 Flat Bed
    First, if your 2012 Ford F-350 has a flat bed on it then it could be a cab and chassis model which are the ones that they turn into utility trucks, ambulances, and flat beds. To verify that yours is a cab and chassis model you can measure the distance from the outside of one frame rail to the outside of the other. If that distance is 34 inches (give or take a fraction of an inch) then it is a cab and chassis model. If it does turn out to have the cab and chassis frame then there are other...
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  • Overall Height of Timbren Kit TFR350TTCC For 2017 Ford F-350 Cab and Chassis
    I checked with Timbren and they informed me that the overall height of the # TFR350TTCC that you referenced is 7-1/4 inches including all of the spacers and brackets.
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  • Availability of Air Helper Springs on a 2014 Ford F-350 Cap and Chassis 4X4
    We carry a couple different options for suspension enhancement for your 2014 Ford F-350 Cab and Chassis. Unfortunately, none of them are of the air spring variety. For your model, I recommend the Timbren Rear Enhancement System. Timbren offers two different weight capacities for the this vehicle. A standard duty model, # TUR350, and a heavy duty model, # TFR350TTCC. The standard duty springs,# TUR350, are rated up to 6,000 lbs and are of the jounce bump style. The Timbren system will...
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  • Helper Springs for a 2015 Ford F-350 with 4,000 Pound Slide-in Camper in the Bed
    SuperSprings # SSR-103-47-2 would be a good option if the camper will be in the back of your 2015 Ford F-350 all of the time or most of the time. This product is intended for use on vehicles carrying constant loads. If you will be taking the camper out relatively frequently then # SSR-103-40-2 is the better option. Adding helper springs to the rear could put more stress on the front suspension so you might want to consider springs # TFF350SDC for 4 wheel drive or # SSF-111-47 for 2 wheel...
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  • Recommended Timbren Suspension Kit for 2015 Ford E-350 Motorhome
    For your motorhome that is built around a Ford F-350 cab and extended chassis I suggest a kit designed for severe duty. For your front axle you can use Timbren kit # TFF550SDH which works on both 2WD and 4WD models. This kit installs without drilling and will help stiffen your front suspension through its progressive resistance. For a rear axle kit you can use # TFR350TTCC which also fits both 2WD and 4WD versions. Both install in place of the factory bump stops. The kit you referenced,...
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Info for this part was:

Employee Michael H
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Michael H
Employee Jameson C
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Employee Mary K
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