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The rear are listed as 0-2" so they should be OK, the front are listed as 2-2.5" which some say should be 0-2.5".
I found reference to the front being able to work but see conflicting info about them only working with the snow plow prep....
My goal is to improve performance when towing. Recent trip to the Grand Canyon and back from East TN with the 5th wheel was a tough ride with tons of porpoising on concrete highways and bridge crossings. The rear stock shocks must be really poor.
They should be fine -- the compressed/extended length for the front 5100 is reportedly nearly identical to the 4600, so that 2-2.5" lifted spec has to be a mistake.
I bought a set of 5100s for use on a 2022 F350, which will remain at stock height. FWIW, I ordered from this place, which was no tax and free shipping for me in NV. Cost was only about $16 more than a set of 4600, and the 5100s were in stock too. https://www.shocksurplus.com/product...d-w-2-2-5-lift
The same question comes up relatively often. Here is just one recent thread that also reiterates the fact that they fit and function on a non lifted application.
The same question comes up relatively often. Here is just one recent thread that also reiterates the fact that they fit and function on a non lifted application.
I read that thread. The confusion lies in whether or not the snow plow prep option matters. Mine does not have it, that OP’s truck did have it.
So did every other thread I could find. Nothing clear about the snow plow prep.
Hmm, so your take from all the threads you have read on the subject is that the only people posting that they fit, also have snow plow prep? I haven't seen it that way. That particular thread has several testimonials without snow plow springs, or at least without stating they have snow plow springs, and no lift. One post actually stated that the length when compared to the stock shock was the same. I've seen others say no more than 3/4" longer than the stock shocks. Either way, you can rest assured that they will fit with snow plow coils or without, free of issues.
The only thing that could potentially be an issue, not guaranteed, would be if you needed to make a warranty claim. Because of the nonsensical application description (2-2.5" lift), Bilstein could refuse to honor a warranty claim if you told them they were not used in that specific application.
Ford doesn't install shocks specific to the snow plow option. Sptings are all that is changed. All non-FX4 trucks use the same shocks from the factory.
I just ordered the Bilstein 5100s, front and rear for my '21. I'll take measurements when I install them to see how much different they are than stock.
Ford doesn't install shocks specific to the snow plow option. Sptings are all that is changed. All non-FX4 trucks use the same shocks from the factory.
I installed my Bilstein 5100s yesterday afternoon. Just to give all the info available, I installed them on my '21 F350 XL 4x4, 7.3L, FX4 package, 6000# front springs (snow plow and camper package). I took a couple pictures for reference. The Bilstein 5100s listed to fit 2-2.5" lift fit a stock height truck perfectly. They are about 5/8" taller at full extension than the stock "FX4" shocks. They both are at about 13.5" of length when fully collapsed (measurement taken from center of the eye for the bottom shock bolt, to the mounting surface for the bushing at the base of the stem for the upper mount. The Bilstein is about 21 1/4" at full extension, and the stock shock is about 20 5/8" at full extension.
I'm not sure how they figured their 2-2.5" lift figures on the Bilsteins, but they will fit anywhere a stock shock fits.
See pictures of the shocks at full extension below. I couldn't get any pictures of them collapsed. A guy would have needed 5 hands for that.
I've never seen the mechanics of " ride height adjustable ".
I've read that before. It obviously is describing in context of a coil over suspension setup. Which the Super Duty does not have. The 5100's for a Super Duty are not ride height adjustable like they would be on some other applications. Like a Tacoma for example. The only bit if info that might be true between the two shocks for our application is the difference in tuning (second paragraph).
06-23-2021, 01:18 PM
