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  1. Vehicle Suspension
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  4. Rear Axle Suspension Enhancement
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RoadActive Suspension Custom Leaf Spring Enhancement Kit
RAS

RoadActive Suspension Custom Leaf Spring Enhancement Kit

Part Number: RAS4524-SAT
In Stock
$539.00
Vehicle Suspension

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2,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway. Great Prices for the best vehicle suspension from RAS. RoadActive Suspension Custom Leaf Spring Enhancement Kit part number RAS4524-SAT can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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RAS Vehicle Suspension - RAS4524-SAT

  • Leaf Springs
  • Rear Axle Suspension Enhancement
  • RAS
  • Standard Duty

2,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway.


Features:

  • Custom kit converts your vehicle's factory leaf springs into a mechanically active suspension system
    • Actively strengthens leaf springs for improved ride quality with or without a load
  • All-in-one suspension system improves stability, handling, and control
    • Eliminates axle wrap, wheel hop, and bottoming out
    • Reduces dangerous sway and body roll while cornering
    • Keeps your ride level when towing or hauling a heavy load
    • Improves traction while breaking and accelerating
  • Variable-rated coil tension springs automatically adjust to your vehicle's load
    • Activate immediately to support the extra weight
    • Disengage when unloaded, allowing your leaf springs to perform as intended
  • Customizable coil springs can be adjusted during installation to accommodate your towing or hauling needs
    • Independently adjustable for side-to-side leveling of off-center loads
  • Helps extend the life of leaf springs, shock absorbers, shackles, and even tires
  • Durable, epoxy e-coated steel construction
    • Corrosion-resistant brackets on the ends of each unit have a salt spray rating of more than 800 hours
  • Easy, bolt-on installation - no drilling, cutting, or welding required
    • Unit secures under the leaf spring and around the factory U-bolts
    • Fully assembled kit and hardware are included
  • Maintenance-free - adjustments and monitoring aren't needed once installed
  • Made in the USA


Specs:

  • Weight capacity: 2,000 lbs
    • RoadActive Suspension will not increase your vehicle's weight-carrying capacity
  • 5-Year warranty
  • 30-Day money-back guarantee


All-In-One Suspension System

When towing or hauling a heavy load, you may encounter a number of problems that can make your driving experience difficult or dangerous, such as sway, body roll, or bottoming out. When your vehicle is weighted down, your factory leaf springs can't counteract these problems to the extent that they are supposed to. The weight will overpower the leaf springs and cause them to twist or flatten out. When that happens, they cannot support, level, or stabilize your vehicle effectively. Additionally, because your factory leaf springs are passive, they won't begin to tackle problems such as sway until those problems have already started.


Diagram of RAS Installed

RoadActive Suspension (RAS) kits enhance those passive leaf springs by converting them into a mechanically active, all-in-one suspension system. RAS kits have variable-rated coil tension springs that automatically adjust to your heavy load. Other suspension systems only solve a few problems and usually at the expense of other improvements your factory leaf springs may need. RAS, on the other hand, is a unique kit that provides everything you want in a suspension system without any trade-offs. It eliminates bottoming out like air springs, reduces sway and body roll like sway bars, keeps your ride level like helper springs, and improves traction and braking control like traction bars. This improves your vehicle's stability, handling, and control while you are towing or hauling, as well as when your vehicle is unloaded. RAS also makes your overall driving and towing experience safer and more comfortable, which greatly lessens driver fatigue.


How RAS Works

Close-Up of RAS Tension Spring

Each RAS unit has a powerful variable-rated coil tension spring that converts your passive leaf spring into a mechanically-active system. Once your vehicle is loaded, the tension springs immediately activate to absorb and support the weight. This allows your leaf springs to maintain their bowed position and keeps them from flattening out or flipping over, which greatly hinders their ability to bear a heavy load. The tension springs are variable-rated, which means that the heavier your load is, the more assistance they provide to your leaf springs. Because of this design, RAS reacts instantaneously, whereas hydraulics, air springs, and other suspension systems take time to react. And unlike your factory leaf springs, RAS stops sway and sag before they even start to happen. Additionally, when your vehicle is unloaded, the tension springs disengage, allowing your leaf springs to perform as intended without hardening your ride. RAS won't hinder your leaf springs' movement, nor will it cause any friction between any of the brackets.


Eliminates Axle Wrap and Wheel Hop

RAS Eliminates Axle Wrap

When under a heavy load, leaf springs are especially susceptible to axle wrap, which can cause wheel hop. Wheel hop is when the tires lose their grip on the road, causing a jarring, up-and-down movement. Axle wrap occurs when the circular motion of the tires cause the leaf springs to twist or rotate. If the leaf springs twist far enough, wheel hop can occur. RAS stabilizes your leaf springs by absorbing the force of the load they're trying to support. This eliminates axle wrap and wheel hop, as well as prevents your vehicle from bottoming out. Because of this, less strain is put on your vehicle. And by reducing some of this wear and tear, RAS helps extend the life of your leaf springs, shock absorbers, shackles, and even tires.


Reduces Sway and Body Roll

RAS eliminates sway and body roll

When driving along a curve while towing or hauling a heavy load, the back end of your vehicle or trailer can start to shift with that weight. If your factory leaf springs have flattened or twisted under this load, they won't be able to prevent it from shifting. Because of this, your trailer will sway away from your vehicle. This makes driving challenging and dangerous, as it increases the risk of body roll, which is when your vehicle drastically leans to one side. This can often cause you to completely lose control of your vehicle. Body roll is especially prevalent with multi-passenger vans and vehicles towing long campers, trailers, or boats. RAS provides a much safer ride by reinforcing your factory leaf springs and stabilizing your load. This helps prevent sway from occurring and reduces the chance of body roll while cornering, turning, and swerving. RAS also lessens the rocking motion that happens during windy conditions or when a semi passes by on the road.


Levels Your Ride and Improves Traction

RAS Levels Your Ride

When your vehicle is overloaded, the bulk of the weight transfers to the rear axle. Your factory leaf springs then become overwhelmed by this weight, as they are not strong enough to support it. This causes the back end of your vehicle to sag and the front end to rise, which means that the front tires have lost some of the grip they need with the road. In addition to loss of traction, it can also cause poor headlight aim, unintentional swerving, and an extremely bumpy and uncomfortable ride. RAS bolsters your factory leaf springs and enables them to provide support for your load without compromising ride quality or comfort. This keeps your ride level from front to back whether you are hauling a load in the bed or towing a boat, trailer, or camper. RAS also ensures that your tires have the traction they require while braking and accelerating, which improves the overall driving experience.


Customizable Coil Tension Springs

Adjusting Spring With Spacer

RAS is also customizable. During installation, the coil tension springs can be adjusted to 2 different tension settings or anywhere in between for improved road handling and support. To do this, rotate the springs while keeping the threaded rod still. As you turn the spring, use one of the 2 included spacers as a gauge to measure the widening gaps between the coils. In order for the RAS units to work as intended, you must tension the coils to a minimum of 25 percent with the 1mm white spacer and no more than 40 percent with the 2mm spacer. The springs can also be independently adjusted to compensate for off-center loads such as a handicap lift.


Easy, Bolt-On Installation

RAS Once Installed

This custom-fit kit comes fully assembled and is easy to install. Each RAS unit simply bolts onto your factory leaf spring with the included hardware, and drilling, welding, and cutting aren't required. First, position the eye hook bracket so that it wraps around the top of the factory leaf spring eye. Then the axle bracket secures under the leaf spring and around the factory U-bolts on the other side of the leaf spring pack. Once the maintenance-free RAS units are fully installed, you won't need to monitor them as you would with air springs.


Corrosion-Resistant Steel Construction

RAS Construction Close-Up

RAS is extremely durable and corrosion-resistant. The units are constructed of high-grade alloy steel, and they have an epoxy e-coat on the coil springs to provide extreme corrosion resistance. The brackets on the ends of each unit resist the effects of water and other elements, and they have a salt spray rating of more than 800 hours.



4624-SAT RAS Custom Active Suspension System for OEM Leaf Springs - Rear Axle

Replaces 4524-SAT

Installation Details RAS4524-SAT Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

RoadActive Suspension Custom Leaf Spring Enhancement Kit - RAS4524-SAT

Average Customer Rating:  4.7 out of 5 stars   (769 Customer Reviews)

2,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway.

by:
2016 Toyota Tacoma

Sagging rear end. I’m not driving on the bump stops anymore and the ride is so much smoother. Saw the rear end go up immediately after install but will have to wait couple of days to see full results.



by:

Good product for towing my camper, but without a load i hve had issues with noise of the springs.



by:

fast shipping and it came out and installment very excellent ! Thank you



by:
2010 Toyota Tacoma

I purchased a RAS vehicle suspension kit for my 2010 Tacoma to assist with load distribution when towing a trailer. The installation was easy thanks to etrailer’s how to video. They augmented my truck’s springs so the bed didn’t “squat “ with a trailer attached to the hitch.

A pleasant unexpected bonus of this kit was a GREATLY improved ride WITHOUT a trailer attached. It has smoothed out my ordinary ride on all types of road surfaces.



by:

Improved the ride more than expected, lifted the back a couple inches. It was squirrelly to drive before now its a hoot.



by:



by:

I received this kit in a very timely manner always do from etrailer have some issues with the instructions that come from roadmaster not a trailer the bump stop spacer didn’t say that you need to use the original bolt from the bump stop so it slowed me down greatly on the install however I took it out on a quick run without a load I do feel that this has made the unloaded ride smoother tomorrow I’ll be taking the trailer out for a bit and we’ll see how it works there and I’ll update this rating.



by:

Admitedly, I haven't even rolled my '07 Silverado 2500HD classic out of the garage yet, but I'm already very pleased. I had to go to a neighbor for a 10mm hex key socket and was slowed down by my 7yo kid 'helping', but it was still only 90 minutes my jack stands were in use. Easiest thing to do!
My only small downsides so far:
* needed to find a 10mm hex key that I apparently don't own, not sure why they picked that fastener
* wish I put some loc-tite on; just to make me feel better
* distance to drop the axle so the suspension fully hangs was way further than I expected; barely had my jack stands tall enough to get the job done.

These aren't really bad on the product, just notes for future customers. We're towing the 5er about an hour an a half this coming week, hopefully it steadies up a lot!



by:

I am a competitive shooter and take my camper to all my shoots. I have a cap on my truck and the decked drawer system. I also carry 400 lbs of ammo at any given time. When pulling my camper on the highway or over bumps and railroad tracks it was kinda scary. This system stopped the squat and removed the sag at acceleration. I installed sumo springs as well (without spacer) for added sway control when loaded down with trailer. The RAS was great right from the start. It reminded me of the 80’s then we would put traction bars on old hot rods to stop rear squat on acceleration. Same kind of feel with my truck. Some much nicer. With the trailer it removed 1.5 inches of squat on the rear and got my front and back within 1” of variance and before install it was around 2.5 to 3. Took only fifteen minutes per side to install once the tires were off. Great product….



by:

I bought these after a 1000+ mile trip towing my trailer (~8000# loaded) with my 2013 F-150 (HD Payload & Max Towing Package). Installation was super easy. I did not need to take the tires off. There was plenty of room to get behind the tires and place and adjust the springs. Once installed they definitely give the truck a rake. I didn't measure pre-installation because I didn't expect the lift to be so great. I used the black disc to adjust the springs.
It's not too extreme but you can definitely see a difference compared to stock.
As you can see in the pictures, with the springs the drop with a trailer attached is greatly reduced and the truck sits level. Towing was great. I used a WDH before and being able to with springs only and a sway bar is pretty nice. Drop with trailer attached is only about 2.5 inches (see pics)



by:

Overall, very happy with the product. GMC didn't have any way to improve the truck from squatting when I hooked up my trailer. This kit didn't stop the squatting but significantly reduced the bounce on bad dips in roads, bridge/road transitions and bad railroad crossings.



by:

Straight-forward installation on a 2007 Pleasure way Excel RV (I did it myself in a few hours) although I did have to modify the air bag mounting bracket with a slot to allow RAS hardware to fit. Great installation instructions. Vehicle height is now correct and could be made level by tension adjustment during install. Handing is improved, I was able to remove aftermarket sway bar which improved ride. I have been considering installation of stiffer rear shocks to soften rebound now that the rear spring rate is increased.



by:

Sure beats air bags or blocks! My Gmc canyon diesel is a great puller, needed help with suspension hauling load limit. Easy to install and works great. On high setting it raised the truck rear an inch or two even empty but the way gmc set up the suspension I consider it a good thing.With my tandem axle 16' trailer loaded it's a saving grace.



by:

I own a 2020 F150 raptor, it lacks spring rate in the rear to hold up a lot of weight, other than that it’s a beast Pulling trailers.
Investigated air ride and I discovered It didn’t have the articulation that I needed.
The springs are the fastest way to have additional lift.
I can install them and uninstall them in minutes .
Great product.



by:

I Have had this suspension on multiple trucks and i love it . It takes the sway out of the truck when entering a exit ramp and taking sharp turns with a trailer or without, also reduces wheel hop and increases payload in the bed of the truck.I would recommend for all trucks pulling trailers.



by:

The bed of the truck measured 37.5" with a tool box weighing 200 lbs. The truck felt weighed down with passengers weighing 600lbs. Total weight 800lbs with a tank full of gas. After the install the truck rides smoother and certainly " like new". The stopping distance and acceleration distance have shortened drastically. I'm planning on loading up the bed and the Roadmaster Active Suspension RAS4611. My wife even drive it and she could feel the difference. "It drives like a muscle car." Buy it. Install time at a reputable mechanic shop was a 30 min. Install. I received them today at 1 pm and got it installed at 3:00 pm and finished the install at 3:30pm. It's an investment worth the price over traditional air bag system. Mechanic installed this on 2011 Nissan Titan SV.



by:

I have a 2020 Silverado 1500 6 cyl Duramax with the Diesel Off Road package (3.73 diff). Travel trailer loaded is probably about 6,000 lb. I took several measurements during and after the spring kit installation. All measurements increased about an inch including the stock suspension with trailer and equalizer bars and with the spring kit installed at 1 mm spacing. A one inch improvement overall. I took the truck on a short drive and didn't notice any difference in ride (wasn't stiffer) which is what I wanted. Good to know that I can adjust the springs to the 2 mm spacing if I want to increase the suspension assist. Going camping next week and looking forward to see how it improves handling and porpoising.



by:

This product has worked well for me. I have used this on previous trucks towing a camper. It helps level out the load on the truck. This product does not work on trucks with top overload springs. Unless you remove the top overload springs. If your vehicle is still under warranty taking off the top overload spring may be a problem. But this product has worked well for me on a half ton truck.



by:

I love the product since i have a 2021 toyota tacoma crew cab long bed with a campertop a robber mat and a jack thats around 450 pounds that a have at all times my truck was sittind low a lilbit plus it was swagging on the road i have summo spring to help my suspention but it was not enoght so i did my research but this was my better option i just installed it yerterday july-8-2021 and went for a ride where i ussually drive everyday and WOW now my truck rides very smood plus it lift my tryck 1 inch on the back now my tryck seats level it took me about 2 hrs but i did right i just follow the intructions and done i love the product the only thing that im concern is that the left side underneat the springleaft there is a breik line that is too close to the roadmaster suspention i hope that with the time dont hit that line because if it does thats the line for the breiks and i will be in trouble replacing it other wise evreything works great i recomend it 100% thanks guys i will buy it again?????best $500 that i spend on my truck



by:

I bought this last summer (2022) for my 2020 F150 to haul the travel trailer (summer) and to have the quad in the box (fall) during the hunting season. I mainly used it during the weekends as I work from home during the weekdays. I adjusted the tension just before the winter because I haven't haul anything during winter. As it is now spring, I wanted to adjust back the tension for the rv season and I found everything rusted out (I am.in Canada and use the truck only 2-3 times a week).

I was pleased to use the product back last summer but because of all the rust I found this spring, I'm having a hard time adjusting them and I am also quite scared for next seasons as rust is making adjustments hard.

By having this for less than a year, I am now dissapointed in the product. Before buying this, I looked a lot into airlift a lot but because of reviews, I changed my mind to go with RAS.

Rust is now found on the main threaded rod locking nuts the bolt/tube underneat locking the device was rusted and seized.



by:

Easy install 2011 Tacoma crewcab long bed. Helped with sag when towing microlite travel trailer. Keeps the rear end raised in the rear a little when unloaded, but I like that look. Only complaint and its nothing big when truck is unhooked and empty when i get out I can hear alittle noise from RAS. Sort of like a bedspring coil. Night pic is with RAS installed daylight pic is with out installed



by:

Total transformation! I never knew how bad my ride was until I installed these RoadMaster 3611-HD active suspension. It took longer to safely jack my truck up and remove tires than it was to install them! Absolutely a game changer. I carry about 1000 lbs of tools and supplies daily and like riding a Rollercoaster when hitting bumps. Now, i hit bumps on purpose just to feel these RoadMasters work their magic! Love them!



by:

absolutely did not take 45 minutes to install and still missing a locknut that was not contained in a sealed bag with cardboard box container causing lost parts. Now i have to locate special threaded nut.



by:

I found this items cheaper on another site but etrailer match and then beat the price.
Item installed super easy, more work jacking up the truck and taking the tires off. Can be installed with out removing tires just make it easier to get it in. The item did lift the back of my truck 1 inch. See Pics.



by:

Works great at leveling my truck with my travel trailer.


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See what our Experts say about this RAS Vehicle Suspension

  • Will the RoadActive Suspension Leaf Spring Enhancement Kit Fit a 2007 Tacoma w/ a 2 Inch Lift?
    The RoadActive Suspension Custom Leaf Spring Enhancement Kit item # RAS4524-SAT should still work on your 2007 Toyota Tacoma. It is entirely dependent on the shape of the lifting block and if it interferes with the RAS's axle connecting brackets. If your lift kit is just taller blocks that used the same width u-bolts you should be good. Sorry for the vague answer. These kits are set up with a factory suspension in mind. There's too many aftermarket lift options to give you a definitive...
    view full answer...
  • What is Best Suspension Enhancement for 2019 Toyota Tacoma 2WD
    The best suspension enhancement we offer for your 2019 Toyota Tacoma SR5 2WD is the RoadActive Suspension kit part # RAS4524-SAT. This is a no-drill install kit that installs very easily, provides adjustable support, and unlike other options actually improves ride quality and stability loaded and unloaded.
    view full answer...
  • Recommended RAS Kit for a 2023 Toyota Tacoma TRD 4WD
    To determine which RAS kit you will need you're going to want to look underneath your Tacoma's rear axle. Some of the 2023 models have the leaf springs mounted below the axle. I have listed options for both below. The systems have identical 2,000 lbs capacities which means they will add an additional 2,000 lbs of support to your rear springs. Axle Below the Leaf Spring - RoadActive Suspension Custom Leaf Spring Enhancement Kit item # RAS4514-SAT Axle Above the Leaf Spring - RoadActive...
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  • What is the Purpose of the Weight Rating for Suspension Enhancement
    Any suspension enhancement like the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS4524-SAT for your 2011 Toyota Tacoma essentially just gives some extra support (up to 2,000 lbs worth) to your OEM suspension - it doesn't actually increase your tow weight rating. Basically these are used to help relieve stress on the OEM suspension and to help the suspension last longer and perform better under load. If the tow vehicle is rated to tow up to an 8K trailer then it can do that...
    view full answer...
  • Will RoadActive Suspension For 2019 Toyota Tacoma Give Smoother Ride Than Timbrens
    That's a good question, and the answer is pretty straightforward - yes, the RoadActive Suspension (RAS) is going to give you a smoother, less bumpy ride than the Timbrens for your 2019 Toyota Tacoma. Like you mentioned, the Timbrens do their job well due to the stiffness of their rubber springs, but that stiffness can also cause the ride to be uncomfortable or even jarring as there isn't much give to them. The RAS will absolutely remedy that while providing the same - or better - enhancement...
    view full answer...
  • Best Suspension Enhancement for 2016 Toyota Tacoma TRD Sport to Improve Handling and Stability
    The suspension enhancement we offer for your 2016 Toyota Tacoma TRD 4WD that will do the best job at reducing sway, body roll, and improve handling would be the RAS system part # RAS4524-SAT for if you axle is located above the leaf spring or part # RAS4514-SAT if yours is located below it. With just this alone you'll see a dramatic improvement in all of the things mentioned. We would not recommend running this with any other suspension enhancement.
    view full answer...
  • Which RAS Suspension Kit Fits 2020 Toyota Tacoma
    Both RAS kits part # RAS4514-SAT and # RAS4524-SAT fit the 2020 Toyota Tacoma but you have to run out and look at your rear suspension first to determine if your leaf springs are above or below the axle. If they are below you need the # RAS4514-SAT and if they are above you need # RAS4524-SAT.
    view full answer...
  • Best Suspension Enhancement Recommendation for 2023 Toyota Tacoma Towing Trailer
    Hey Joshua, so we have just what you are looking for with the RoadActive kit part # RAS4524-SAT that is a fit for your 2023 Toyota Tacoma. We have found that the RAS kits give the best of everything as they give you the support you are wanting to prevent sag, they improve handling when loaded and unloaded, and unlike other options they actually improve loaded and unloaded ride quality.
    view full answer...
  • Is There a RoadActive Suspension Kit that Fits 2022 Toyota Tacoma
    We do have a RoadActive Suspension kit that fits your 2022 Toyota Tacoma with the part # RAS4524-SAT for if you axle is located above the leaf spring pack or the # RAS4514-SAT for if your axle is located below the spring pack.
    view full answer...
  • Recommended Suspension Add-On for 2020 Toyota Tacoma Towing with Weight Distribution
    I recommend going with the RoadActive Suspension Custom Leaf Spring Enhancement Kit, part # RAS4524-SAT for axle above leaf springs or part # RAS4514-SAT for axle below leaf springs. This system is going to engage automatically so there is no takeup like with upgraded jounce springs. They can also be adjusted to better suit your exact needs unlike upgraded jounce springs. In comparison to air bags, these will require maintenance whereas the RAS will not. They only offer the sleeve type...
    view full answer...
  • What Is the Difference Between RoadActive Suspension Kits for 2016 Toyota Tacoma 4WD?
    The difference between the RoadActive Suspension Kit # RAS4514-SAT and the # RAS4524-SAT is more than price. The # RAS4514-SAT is intended for vehicles in which the axle is located below the leaf springs and the # RAS4524-SAT is intended for vehicles in which the axle is located above the leaf springs. They look almost identical uninstalled, but the installation and function is different.
    view full answer...
  • Towing Set Up For 2017 Tacoma And 2017 A-Liner Scout Camper
    You won't have any problems with weight capacity. An Aline has a dry weight of 1180 pounds and a 2017 Tacoma base model can handle 3500 pounds. I suggest getting RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS4524-SAT. These will improve stability, handling and help with trailer sway. If you need the hitch receiver I recommend the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C13264. You will also need a 7 way connection if you do not already have one. I...
    view full answer...
  • RoadActive Suspension Kit for a 2019 Toyota Tacoma 4 Door Long Bed 4WD
    Yes, it does make a difference and you will need to take a look at your leaf springs before you make your order to see which kit you will need. Both RoadActive Suspension kits item # RAS4514-SAT and item # RAS4524-SAT fit a 2019 Toyota Tacoma 4-Door Long Bed 4WD pickup but you have to look at your rear suspension first to determine if your leaf springs are above or below the axle. If your leaf springs are below the axle you will need the item # RAS4514-SAT and if they are above the axle...
    view full answer...
  • What is Difference Between Roadactive Suspension Kits RAS4524-SAT and RAS4624-SAT
    Hey Mark, so the 4624-SAT is the updated version of the 4524-SAT but we decided to keep the old part number on our site and its our part number # RAS4524-SAT. So basically RAS updated the part number and that is the current version we sell, but we decided to keep the old part number for now.
    view full answer...
  • Solution for Suspension Enhancement on 2011 Toyota Tacoma X-Runner With Lowering Blocks
    In general, the Firestone # F2407 and other air bags are designed to fit vehicles at factory ride height. If you have a lift you can add spacers but when the vehicle is lowered like your 2011 Tacoma X-Runner they aren't going to work. Instead, I recommend using the RoadActive Suspension Custom Leaf Spring Enhancement Kit. The RAS system installs on your leaf springs so the lowered design of the X-Runner won't be a problem. These have a 2,000 lb capacity and turn your leaf springs into...
    view full answer...

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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Mary K
Written by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M

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