# 1
Firestone Coil-Rite Air Helper Springs - Rear Axle
Install march 2025
I received my order and installed the Air Helper Springs the next day. I had the opportunity to fully test them yesterday. They were not difficult to install and the instructions were easy to follow. I do wish there had been a video for my particular vehicle since I’m not exactly sure my routing of the air line around the exhaust the best location. Time will tell. After hooking up my trailer I adjusted the air, best I could, since all my tire gauges start at 10 lbs and go up from there. I did get the rear of the Pathfinder as level as I could. A recommendation from etrailer on a good digital or analog gauge would have also been helpful. I did pick up a digital gauge today, works great. Thanks etrailer for a great products, instructions and your follow up email that answered my questions,
# 2
Air Lift 1000 Air Helper Springs for Coil Springs - Rear
I originally bought the Air Lift 1000 to prevent my 2011 Pathfinder from sagging when I pull my 4,500lbs boat. So far so good, the sag is gone. Other benefits are a firmer ride and less roll on the turns. If I posted the pics correctly you can see I ran each bag independently and I was able to mount each Schrader Valve on my 7 pin wire harness. This is a very easy DIY project. I suggest taking off the wheels and placing the bags in the springs from outside the vehicle rather then from underneath.
Awesome product. Fit on my 2009 Nissan Pathfinder really well. Distributes the weight of my 18' RV trailer nicely to the front suspension. No $550 weight distribution hitch necessary. Easy install. Saves your suspension.
# 3
Air Lift 1000 Air Helper Springs for Coil Springs - Rear
Excelente product, high quality AND good price. Delivery took a while than i spected. Will buy again your product..thanks
Had the air lift 1000 air helper springs installed 6 months ago on my 2000 Nissan Pathfinder that the coil springs had relaxed on and would bottom out on bumps. Love them! Put in 12psi and have loaded 450 lbs in back of Pathfinder and no bottom out. Unloaded still rides soft.
# 4
Timbren Suspension Enhancement System - Rear Axle
Love it jus as described....
Great Product built like a Tank
# 5
Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle
My pathfinder sagged in the rear There was only 40,000 km on it I bout these Couldn’t get them on, took it to muffler man They had to remove and stretch the spring to get it on They installed it for 500 The rear is about 1,5 inches higher
Works well. But I had to go to my mecanical shop to install. Impossible to install by myself.
# 6
Air Lift 1000 Air Helper Springs for Coil Springs - Rear
Thankfully I read a lot of the reviews, comments and help to install. First I put the airbags in hot water in the sink to get them pliable. Next I rolled them into a hotdog shape with zip ties readied to hold them in shape. Then I put the airline in place. I put the rubber plate in. I fed the airline in and slid the airbag thru the bottom spring twisting it facing the wheel bending it upward. Fairly easy to get it in. With the folded side towards me, I cut the zip ties. I pushed the airbag thru fitting in and aired the up to 5 pounds. Works like a charm. Good lick
The units work great! The ride on my Pathfinder is greatly improved with and without the 2Ton trailer load. Warmth is your best friend. I installed the units on a 30°F day. The units would not fold as necessary to insert into the unsprung coil. I warmed them in a 150°F oven for ten minutes and presto! I was also necessary to warm the ends of the air hose to get them on the fittings. Heat up a cup of water, dip the ends in, shake off the excess water and insert. Don’t forget to put the clamp on first.
# 7
Timbren Rear Suspension Enhancement System
Bought the TNRARM for my 2008 Nissan Pathfinder V6 4WD. The actual suspension is not even close to the diagram on the instructions. I sent an exploded diagram of my rear suspension to Timbren seeking their advice, and their response was "If your vehicle does not have a bump stop, then this will not be able to be installed." Very disappointed. On a positive note, etrailer was great, product shipped quickly and return was easy.
Nissan Armada. Only about 1/2" longer than original design. Once loaded,still squatted rear suspension like it did before installation. Not worth the high price.
# 8
Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle
I installed a set of 1125 Sumo Springs in the rear coils of my Toyota RAV4 Limited Hybrid AWD to increase the spring rate ahead of a cross-country road trip. My RAV4 really sags with a rearward rake when passengers + rear cargo are loaded in the vehicle. This impacts the handling of the vehicle and throws off the aim of my headlights, which leads to other drivers flashing their high beams at me as my headlamps are shining in their eyes. Hopefully these Sumo Springs solve that problem. I’ve driven about 50 miles post install and can tell the ride is much more firm and stiffened up in the rear of the vehicle. The RAV4 feels much more sporty and planted. The install was much more difficult compared to my Sienna. In our van, the Sumo Springs slid right into place - it was a 10 minute job and I didn’t need to remove the wheels. On the RAV4, this was not the case. I had to remove the rear wheels to gain enough space to work the Sumo Springs into position between the coils. The fit was also much more tight; I had to really jam the Sumos into place and slide them into the center of the coil (it was a real arm workout). The Sumo Springs also overlapped about 2”, so I removed and trimmed each down with a razor knife to achieve a ~.5” overlap (per the supplied instructions). Install time was about 90 minutes as I had to remove the Sumos and trim them - which doubled my labor time. Time will tell to see if these work, but I’ve had a set of Sumos in my Sienna for about 15k miles / 1-year and they have done just fine, so I suspect these will too.
# 9
Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle
Just installed it was so easy. Perfect fit for my Jeep Renegade Trailhawk and my rear tires now stand striaght perpindicular instead of bowed inward. Bought to support the extra weight of camping trips.
# 10
Timbren Suspension Enhancement System - Rear Axle
Great product and performed as I had hoped. My 2011 Xterra Pro-4X has weak leaf springs and bottomed out on bigger bumps. I didn't have the capital to put forward on new leaf springs so I added the Timbrens. I gave these 4 stars as Timbren shipped me the incorrect spacers twice (at no cost to me). Their customer service was great, and found an error in their process. After getting the height and spacers correct with a small gap, they do their job very well and I am happy with the performance even after a year. I would definitely consider purchasing again.
I bought these for my Xterra to help eliminate sag when towing. I don't tow a lot and I liked the idea that these units wouldn't affect the ride the rest of the time. First impressions of the quality. The thickness of the steel brackets is great almost look heavier than they need to be. The rubber springs are very solid and seem like they will last a long time. The included hardware seemed to be of good quality as well. My only complaint was the finish on the brackets. At this price point I was hoping they would be powder coated but they are painted. Not a huge deal but right out of the box some of the paint was flaking off like the parts weren't prepped properly. I ended up scuffing them down and spraying two coats of bedliner on them. I am hoping that will help keep them rust free. Installation was very easy and I had no problems getting them pretty centered over the axle. I did have the opportunity to tow since the install and they really did make a huge difference. I gained about 2 inches of height when fully loaded. The ride of the vehicle was very good and the handling was very stable. I drive this vehicle every day and when not towing it is a little stiffer at times, but certainly not enough to be a problem. I am at 60k now and plan on replacing my shocks shortly so I am hoping that will help. Overall, it was a worthwhile upgrade and I would do them again in a minute.
# 11
SumoSprings Solo Custom Helper Springs - Rear Axle
These Sumo Springs were easy to install, even for a 70 year old guy. I tow a 7,000lb camper and even tho I have a nice WDH I still had som sag on my Tundra. These helped level it out when towing and got rid of “some” of the bounce. They were really a godsend when I overloaded the bed with about 2,000lbs of pavers. That weight squished the Sumos significantly but the truck drove and rode great. Better and less expensive than air bags.
Pros: Easy install Drastically helps with sag when towing trailers Cons: Things feel more bouncy in the back when not loaded They get hard as a rock in freezing temperatures (i.e. 15*F = no rear suspension) No option to unscrew the spring and replace with bump stop for the winter (at least that I can find, tell me if they make one).
# 12
Timbren Front Suspension Enhancement System
When I installed these on my 2015 Nissan frontier sv, the bump stops did not sit square with the top plate, but at an angle I wasn't sure how this would effect travel of the timbrens or the function. Not sure if others have same issue or not. Long story short, this positioning caused excessive stress on the mountingnut location and tore at the bottom right next to the mounting bolt. Timbren was contacted and a replacement was sent free of charge. Excellent customer service- friendly, great attitude to help me out. Performance - handles larger bumps/dips better but smaller ones are felt more. Stiffens up front, notice wind gust influence substantially less. Do feel performance has diminished after a year. Upgrading shocks/coils for lift and better ride. May remove timbrens altogether. Someone with a plow would appreciate these more.
Here is my install on my 2WD Ford Explorer front. Easy job, I don't recommend installing these with lowers suspension as the ride is too harsh, I adjust mine back to stock. Works the way I need them to.
# 13
Firestone Coil-Rite Air Helper Springs - Rear Axle
As most have indicated fitting the bags in the springs is the hardest part. one tip I found helpful was once the bag was partially in, force the bottom of the bag with the air tube into the center of the spring then slowly let the air go back into the bag. Once it had some air in it i was able to move it around and get into place. once installed at 20 psi it raised my back end two inched. from 35" to 37" It is now level with the front of the vehicle. my vehicle is a 2015 armada platinum. Yes it has the auto leveling system. But the system wasn't functional. I've used these before in a 2010 armada platinum and it worked out great
Installed on the rear coils of a 2008 Nissan Armada after removing factory air shocks and installed a 2" lift. Easy installation and works perfect for my needs. Only suggestion would be to add a "T" to the kit so you can inflate at one point versus two.
# 14
SumoSprings Solo Custom Helper Springs - Rear Axle
# 15
Air Lift 1000 Air Helper Springs for Coil Springs - Rear
Funny you should ask.These bags worked great for almost one year. Before one year was out the hose on both sides at the bag connectlion chafed through and leaked. It looks like the top plate puck or the hose spring clip may have been rubbing against the hose thereby chafing part of the hose until it finally leaked. Fixed one side by cutting the hose and reclamping it. Then the other side leaked in exactly the same place . The design needs a stouter connection between the bag and the hose that won't chafe through . The bag input nozzle was mounted on the top side of the bag on my 1996 Roadmaster wagon. After the airlift 1000 bags deflated my air suspension shocks blew out while pulling a trailer. Pretty disappointing design flaw.
Fast shipping, easy ordering and follow up! Quality looks great and price was great for product!
# 16
Air Lift 1000 Air Helper Springs for Coil Springs - Rear
The Air Lift AirLift 1000 Air Helper Springs for Coil Springs (Rear - AL60786) to fit my 2015 Toyota Sequoia (8 passenger vehicle) were purchased specifically for a lengthy 6 day trip with my Wife's two brothers and their spouses. This also included a roof carry-all and a hitch receiver Carry-all box to accommodate all our luggage. So, the bottom line the "AirLift Helper Springs worked!
Easy, straight forward installation. Looking for flexibility to avoid rear spring sag when pulling trailer and carrying loads. I'm happy I went with Air Lift and of course etrailer. Was very impressed with etrailer's outreach and the quick shipping and delivery.
# 17
Air Lift 1000 Air Helper Springs for Coil Springs - Rear
Works great
# 18
Air Lift 1000 Air Helper Springs for Coil Springs - Rear
I purchased this product for some additional support for our Hummer H2 when we are towing our travel trailer. I removed the springs for easier installation of each bag. I am 66 years old and total time from start to completion was 3 1/2 hours from set up to clean up !
Put these on 07 tahoe. I pull a camper and put 400lbs of tools in back of tahoe. With just the tools I noticed it help put more weight on front wheels. I have not pulled camper yet but with just the minimum 5lbs of pressure it helped with the tools. It took me about 4 hrs to install by myself on the ground. The hardest part was getting it pushed into the coil springs. I ended up using a ratchet strap to help push it in. It was fun trying to get the hose connected afterward, could not see, had to feel and take a picture to make sure it was fully seated.
# 19
Timbren Rear Suspension Enhancement System
They do a very good job of stabilizing the rear axle of the truck when under a heavy load. Towed a 6000 lb travel trailer this week with no load leveling or anti sway bars (helping a friend). The 1500 Silverado equipped with the Timbren system did an excellent job towing the trailer.
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.
# 20
Firestone Coil-Rite Air Helper Springs - Rear Axle
Installed on a 2016 4Runner in conjunction with a 1-1/2" Daystar coil spring spacer. Since the coil spacer is hollow, I left one segment of the factory bump stop in place to compensate for and match the height of the spacer. I also added a Firestone T-fitting on the airline for a single inflation point and located the inflation valve next to my trailer plug wiring. Quite a pain to wrestle the coil back in place with the added height of the spacer, but that is no fault of the airbags; pry bar proved critical to wedge the coil back in place since I did not try the bottle jack between the frame and axle trick. After nearly a year, no leaks, bags hold air well. I put 25 psi in them for towing our travel trailer, or keep them at 10 psi for normal running around. I have also found them useful to prevent or at least reduce bottoming out the soft rear suspension that happens when off road driving with even just a couple hundred pounds in the back. Even at 25 psi they ride great and you wouldn't know they are back there at 10 psi. Highly recommend for the low cost and added versatility!
Install was easy on 2014 FJ Cruiser...pulled the wheels off, jacked it up a bit, and the axle dropped enough to allow room to fit the bags inside the springs. I will see how they perform when I hook up my trailer but they inflate quickly and I can see these will stop my vehicle from squatting when the cargo area and trailer are heavily loaded. Another excellent product offered by etrailer...thanks.
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