I returned the Rancho Level It RS66508R9 Suspension Leveling Kit. The adjustment knob made no difference the softness/bouncing remained the same no matter which way I adjusted the struts.
I'll wait until someone on this forum identifies a better set of struts that level and provide a good ride...
I installed 4D tech purchased from Amazon and it works great. I had to start and drive the truck twice before it worked correctly, but it's worked great since May of this year.
https://a.co/d/egXiyzO
I picked up the truck at 8pm tonight. My mechanic did the adjusting, but I will try adjusting with the compression knob tomorrow. He did mention that the OEM coil may need to be replaced. More to come on this.
I just had these same struts installed in my 2025 Ranger Lariat FX4. It did level the vehicle, but the ride is really bouncy. I seems like it still needs adjusted for a firmer ride. I'll be adjusting this tomorrow to try and find the sweet spot on these adjustable Rancho leveling struts.
Rancho...
I'll be installing this same kit on my 2025 Ranger Lariat FX4 in May. The American Truck sales rep said it would work with all models 2019 to 2025, except for the Raptor. I'll post an update when they are installed.