Just had an oil change at Christian Brothers ( I dont trust Ford dealerships) and they advised ( with photos) both rear shocks are leaking. Only 10,000 miles, mostly interstate, no, heavy loads, no off -road, 2 short trips with a light travel trailer using an equalizer hitch. Not expecting Ford to replace but should be under warranty. Very disappointing....just one of many quality issues with this model.Noticed my driver side rear was leaking, however since I was ditching said shock for a set of 5160s I didn't need to investigate. Still, very disconcerting.....
I got tired of my truck's rear bouncing around like Riki-tiki-tavi all the time and bought some 5100's. Going aftermarket shocks should be a first mod sadly, now waiting on Bilstein to release the 2WD fronts for the '21 up.Factory shocks suck all around! You can cheaply and easily upgrade to a bilstien, fox, or icon.