Rear Suspension Enhancement for 2008 Ford F-150 to Reduce Suspension Sag When Towing
Question:
Thank you again for the other options. I did think about that Roadmaster suspension. My friend actually installed it on his 2016 F-150 and he likes the ride and support when towing. The only complaint he told me was it gave him a 2 inch lift to rear suspension and now he is needing to raise the front end to get a level truck look. But he says when empty he still does have a good comfort ride but with a little more stiffness and feels hop on rear end when going over pot holes and rough roads. But other than that for him it was a good option. Because he does tow more often and uses his 30ft TT more often than I do. For me I’m not to sure. Since I mentioned I only take my very heavy TT only about 4 times a year and manly local not far. With only 1 long trip from Florida to NC. I don’t like the idea that it gives you 2 inch lift to rear. Would need to spend more money to pay to add a front leveling kit. Sorry for being so indecisive. I just want to make sure I get the best option for my situation. I do know I’m maxed out on my numbers and to the limit to being over overload. But with WDH it does say from Ford Web site that it goes up with WDH And I can tow 11,000 lbs max and a tongue weight of up 1,000lbs. I do have tow package with a rear axle ratio of 3.73 and limited slip differential also have the heavy duty payload package and on my own I had installed a bigger capacity transmission cooler and installed new Rancho 5000 shocks to front and rear. I have installed E rated tires to also handle the added weight. I wanted you to have all the facts and specification on my truck. I’m not reckless and very aware of all safety issues and possible dangers towing so heavy at trucks upper limits. I say all this to assure you I know what I’m doing and I’m a seasoned TT user for more that 10 years and like I mentioned before I do tow a boat on regular basis. So in no way am I new to towing. So with all that new information you now have. Is it your best recommendation in order of best to least is 1) AirBags 2)RoadMaster 3)Jounce Springs So my final question will then be. Without killing my comfort factory ride when not loaded. I should go with your original recommendation of Sumo Springs in the 1000lb rating. That should give me enough of a support to help with my 2”sag to rear and I should not go any higher than that because it will effect my comfort ride. So there is no happy middle. I should not go up to anything bigger than the 1000lb. Please advice. Thank you
asked by: Carlos H
Helpful Expert Reply:
The amount of tongue weight you have at 965 lbs it probably higher than what your F-150 is rated to tow which is why you are experiencing sag even with a weight distribution system. Suspension enhancement can help give you more support but if you are above the weight capacity of your vehicle suspension enhancement would not be enough to allow you to safely tow beyond that.
The SumoSprings kit part # SSR-108-40 would give you an additional 1,000 lbs of support when towing though and would reduce the sag greatly. This is less expensive than an air bag setup and does not require maintenance either.
![Jameson C](https://images.etrailer.com/static/images/catg/people/371_tn.jpg)
Products Referenced in This Question
Firestone Air Command Heavy Duty Air Compressor - Analog - Single Path
- Air Suspension Compressor Kit
- Wired Control
- Single Path
- Analog Display
- 150 psi
- Firestone
more information >
Firestone Ride-Rite Air Helper Springs - Double Convoluted - Rear Axle
- Vehicle Suspension
- Rear Axle Suspension Enhancement
- Air Springs
- Heavy Duty
- Firestone
more information >
RoadActive Suspension Custom Leaf Spring Enhancement Kit
- Vehicle Suspension
- Rear Axle Suspension Enhancement
- Leaf Springs
- Standard Duty
- RAS
more information >
SumoSprings Solo Custom Helper Springs - Rear Axle
- Vehicle Suspension
- Rear Axle Suspension Enhancement
- Jounce-Style Springs
- Light Duty
- SuperSprings Intl
more information >
Product Page this Question was Asked From
Timbren Rear Suspension Enhancement System
- Vehicle Suspension
- Rear Axle Suspension Enhancement
- Jounce-Style Springs
- Extra Heavy Duty
- Timbren
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Installation of a Timbren Vehicle Suspension on a 2014 Ford F-150
- Q&A: Timbren Suspension Enhancement Recommendation for a 2010 Ford F-150 Towing a Horse Trailer
- Article: Replacing RV Awning Fabric: Your Step-by-Step DIY Guide
- Q&A: Difference Between Timbren Suspension Enhancement for 2023 Ford F-150
- Article: How to Choose the Best Tonneau Cover
- Article: Choosing the Right Suspension Kit for Your Truck and Trailer
- Article: Beginner's Guide to RV Awnings: How to Open, Close, and Maintain Your Awning
- Q&A: Best Way to Prevent Sagging Suspension When Towing a Trailer
- Article: 5 Things to Know About Weight Distribution Hitches
- Q&A: Can Timbren Helper Springs be Installed on a 2007 Ford F-150 with a Slight Lift
- Q&A: Differences Between Air Springs and Jounce Style Springs
- Article: Gooseneck to 5th Wheel Adapters
- Article: RV Sway Control, Stabilization, and Suspension Enhancement
- Q&A: What is Recommended Distance between Timbren Spring and Axle
Carlos H.
3/18/2020
Still confused. I was advised by etrailer expert for my condition reported to install Sumo Springs Solo SSR108-40 is 1,000lbs. The Q&A section I searched on your site has customers with same problem and were advised to install Timren TFR150DH 7,000lb. Why have I been advised to go with lower rated springs. I stated in my detailed question that I have a very heavy travel trailer. So why the lower rated springs. Thank you.