If you carry heavy loads at all you should consider heavier springs of some sort. But the problem with heavier springs is that when you don't have a load they are rock hard and not only does it feel terrible but the car handles poorly.
If your load varies like you run empty sometimes and then fully loaded you need soft suspension when you don't carry a load and heavy suspension when you do have a load. Cant manage that with heavier springs.
Why not run on air like the trucks and buses? They can handle the heaviest loads, give you all the clearance you need and be soft and smooth and low when you want low. Bolt on - no welding. With a BOSS Air Bag Load Assist kit you can run very soft at low pressures when you are running light weight without a load. Then just pump them up when you load up.
The heavier the load the more air you can apply. These will safely load up to 150 psi and carry 2600 pounds per bag = 5200 pounds. Now you are running on air. Robust and stiff when loaded (no body roll).Full control of ride height regardless of the load. Air Bags x 2 (1 for each side). Air Fittings for air lines.
Easy to follow instructions with pics. Essentially you can lift the rear of the vehicle with air bags to level when otherwise sagging in the rear. You can avoid your headlights blinding oncoming drivers when your rear end sags.
Ires and leaf springs will last longer too. The steel brackets are very heavy duty. That's a lot of air bags out there yet we rarely have people wanting a replacement bag or component. That suggests we are standing the test of time and there is no better way to prove our worth.We have distribution centers in Australia and Canada and now in Missouri USA. You will receive your kit in a matter of a few days and you will receive tracking notifications plotting its progress. We live and breathe air suspension kits from brackets and air bags through to compressors and in car control. The item "Ford F150 Raptor up to 2020 model BOSS Air Bag Suspension Load Assist Kit LA92" is in sale since Thursday, September 18, 2014. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Suspension & Steering\Shocks & Struts". The seller is "bossusacanada" and is located in Raymore, Missouri. This item can be shipped worldwide.