Which Road Active Suspension Custom Leaf Spring Kit Is Best For A 2019 Ford F-150 Crew Cab 4x4?

Updated 06/01/2026 | Published 05/25/2026

Question:

I have a 2019 Crew Cab F150 4x4 with 3.5 eco boost, Towing a 6000 TT. Looking for recommendation for a suspension helper system to help with backend movement. For Road Active Suspension Custom Leaf Spring what part number should go with?

asked by: Brian H

Expert Reply:

Hey Brian, thanks for reaching out. We do have a Road Active Suspension Custom Leaf Spring kit for your 2019 Ford F-150 Crew Cab 4x4. Here is what I recommend:

- RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty # RAS3611-YHD

I almost always recommend going with the HD kit for these. There really isn't any downside aside from the costing a little bit more. It'll just mean more sway and bounce reduction compared to the standard duty kit. It won't make the ride rougher like a lot of other suspension enhancers. It'll give you noticeably more support and stability with your travel trailer hooked up.

What kind of camper do you have? Do you take it on a lot of long trips?

expert reply by: Jesse M

RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty
(click to enlarge)

Steve

5/30/2026

I used the RAS system on my 2022 Ford F-150 and loved them. I pulled an 8,250 lb. tt and it picked up the sag in the rear by 1 1/2” which leveled out my camper. They are easy on , easy off as I removed them each year due to the salty roads in the winter time.

Jesse M.

6/1/2026

@Steve Thanks for sharing your experience, Steve! It's great to hear the RAS system picked up about 1-1/2" of sag and helped level out your camper while towing that 8,250 lb trailer. I also like the tip about removing them for the winter, that's a smart move for anyone dealing with salty roads. Glad they've been easy to install, remove, and most importantly, doing exactly what you bought them to do.