2015-2020 F150 Rear Blocks & Add-a-Leaf Kits

Pro Comp's 3" Rear Block Installed on our 2015 F150 3.5L EcoBoost Project Truck

While most folks want to keep their trucks completely dead-level, we here at Stage 3 do enough towing and hauling heavy loads that we keep at least some rake to prevent sitting nose-high when loaded. Unfortunately for us, our ICON Stage 2 Kit put our 2015 F150 3.5L EcoBoost Project Truck at basically dead-level, and we needed a solution. That solution was a Pro Comp 3" Rear Block Kit. Pro Comp's block adds about 1.50" of ride height to your F150's rear end without effecting performance or ride quality with an extremely easy installation.

Improving Load Capacity with an Add-a-Leaf Kit

While a larger rear block can get your F150's rear end sitting higher, blocks don't do much when it comes to improving your truck's suspension in the performance department and can cause a slight drop in rear suspension travel. Add-a-Leaf Kits, on the other hand, give your F150 the extra rear ride height you need along with improved load capacity without a loss in travel. We installed Auto Spring's Rear Add-a-Leaf Kit on our 2015 F150 3.5L EcoBoost Project Truck with excellent results.

ReadyLift 3" Rear Block Installed on our 2015 F150 XLT

We wanted to get both ends of our 2015 F150 3.5L EcoBoost Project Truck up a bit higher in the air in order to keep some rake for towing and hauling, and with the Boss front coilovers we put it on it as part of its Trail Package 2 System, we were going to be nose-high. That's why we put a ReadyLift 3" Rear Block onto our truck as part of our Trail Suspension Package. ReadyLift's block added just enough ride height to win us back some rake in an easy install and without overly stretching our truck's shocks.