Does a Truck's Towing Capacity Increase When Using a Fifth Wheel Hitch  

For your 2018 Toyota Tundra SR5 4x4 I recommend the SumoSprings Solo Custom Helper Springs - Rear Axle #SSR-610-54 to give you the load leveling you desire. The SumoSprings have more of a progressive load support than the Timbren springs. Timbren…

I went out and pulled both the Timbren kit part #TTORTUN4 and #TTORTUN4L from our warehouse to measure them for you and found that they both sit exactly 3-3/4 inches tall.

While it will not hurt your vehicle, using two suspension enhancement products at the same time could render one product ineffective or will cause one system to be used at limited potential. For example, if you try using both the Timberen Rear…

I spoke with my contact at Lippert regarding the error message issue you are having with your Ground Control Leveling System. He says it sounds like the controller may have gone bad. To check this you can cut power to the controller and just do a…

The SumoSprings I recommend for your 2016 Toyota Tundra to help with sag are the SumoSprings Solo Custom Helper Springs #SSR-610-54. Since you have a more constant load on the rear of your truck with the heavier camper, and you also tow, the best…

For your 2020 Toyota Tundra Crewmax 4WD, I recommend the SumoSprings Solo Custom Helper Springs item #SSR-610-47. These are the 1,500 lbs capacity springs and which will still give you more than enough support for your 7,394 lbs travel trailer. By my…

The ideal clearance between the top of the bed rails on the truck and the bottom of the loft on the trailer is indeed around 6". This will allow for clearance between the truck and trailer during most normal driving encounters such as bumps in…

I recommend using just the RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty item #RAS34FR and making sure it is adjusted properly. Yes, those 2 systems can both be installed on your 2021 Toyota Tundra. However, both of them…

You could indeed use both at the same time if you cared to, as they would fit but it isn't necessary. I'd recommend going with the Timbren #TGMRCK15S only, as that kit offers 8600 lbs of capacity which is plenty. This kit isn't compatible…

The Timbren Aeon Springs you've looked at, part #TTORTUN4 are exactly what I'd recommend for towing the fifth wheel trailer you described. The springs will have no trouble whatsoever handling the 1320 lb pin weight you mentioned. The thing…

The main difference when comparing Timbren and SumoSprings for suspension enhancement is going to be the weight capacities. Timbren uses hollow rubber springs that is able to support more weight but they can cause a firmer ride. The SumoSprings are…

Actually, there are currently no Firestone Air-Ride products for a 2009 Ford F-150. We do have other options that will not interfere with the 5th wheel trailer hitch. You can use SuperSprings Custom Suspension Stabilizer and Sway-Control Kit,…