Forum Discussion

jimh406's avatar
jimh406
Explorer III
Aug 09, 2015

Amazed by how well Bilstein 4600s work.

First, my experience with shocks and truck campers spans two trucks and 4 sets of shocks with the same TC. On the 2006 F350 SC 4x4 PSD 6.0 SRW, I had both stock shocks-Rancho 5000 series and replacement-Rancho 9000s. On the F450, I had the stock shocks-Rancho 5000 series and also the latest purchase of the Bilstein 4600s.

The Rancho 9000s are definitely better than the 5000 series for dampening large bumps and helping sway. What I find amazing about the Bilstein 4600s is that they are both good with the large bumps and also the small bumps.

I drove the section from Seattle to Moses Lake area with both sets of the shocks recently on the F450 loaded similarly. If you've driven that section lately, you know there are big bumps and smallish bumps since there has been a lot of contruction. The difference was felt with less vibration in the cab and also noticable in the TC since the cushions in the dinette area stayed completely in place this trip.

A disclaimer, the Rancho 5000s on the F450 likely had 100K on them. I'm the second owner, but there is no reason to believe that the previous owners had replaced with a stock type shock.

In any case, I'm impressed with the Bilsteins for my usage.
  • Thought I would check them out. Punched in 2015 F350 4x4 into the Bilstein online catalog and only came up with 5100 series. They don't seem to list the 4600 for my truck?

    Search for 2014 shows results for 4600. When I punch the 4600 part number Into Amazon they come back for a 2005-2014.

    Something must have changed for 2015. Maybe the higher ride height.

    Edit: sounds like they are the same other than the 5100 is available for lifted trucks.


    FAQ: What is the Difference Between a Bilstein 5100 Series Shock and a Bilstein Heavy Duty Shock?




    Although they are different brands and may appear to be very different from each other the Bilstein 5100 and Heavy Duty actually share many of the same components and ride characteristics.

    The main difference between the Bilstein Heavy Duty vs Bilstein 5100s is that the Heavy Duty or 4600 series is designed for stock height trucks and the 5100 Series is built for lifted trucks. The other major difference between the Heavy Duty and 5100 is that the Bilstein 5100 Series shocks have a zinc coating with a brushed metal shock body and a black boot while the Heavy Duty uses a painted yellow body with a blue dust boot.

    The Similarities: The 5100 series and the Heavy Duty shocks use the same technology internally. Both use the same internal valving and at stock height will ride the same (shocks for lifted trucks may use different valving settings in order to accommodate the extra weight of larger tires). Both shocks are pressurized with 360 psi of nitrogen to prevent shock fade and foaming of the shock oil. The outer construction of both shocks is identical as well with an extruded metal body rather for maximum strength and top of the line seals. The 5100 series and Heavy Duty 4600 series are both covered under Bilstein's limited lifetime warranty that protects against any manufacturer defects for the life of the shock.

    For stock height trucks, the Bilstein Heavy Duty yellow and blue shocks are the most popular choice, because they typically cost a few dollars less than the 5100 shocks and provide excellent performance for towing, light offroading or normal driving. Many customers do prefer the 5100 Series even on stock trucks because the shortest 5100s are typically built for 0 to 2 inches of suspension lift, meaning they can run the 5100 on their stock height truck but leave the option open for a lift later on down the road.

    For leveled trucks, where the owner has either purchased an aftermarket leveling kit or turned their truck's torsion keys up, Bilstein has shocks designed specifically for a 1-3 inch leveling kit. On some trucks with coilover type front shocks, a Bilstein 5100 Leveling Shock is available that is capable of lifting the front of the vehicle up. We recommend using the 5100 rear shocks along with your front 5100s on leveled trucks because the rear 5100 shocks are usally an inch longer than stock to accommodate a small lift. In our experience, once someone gets a taste of lifting their truck, they always go back for more. If you already have the 5100 shocks on the rear, you always have that option without needing to buy new shocks when you decide to add the lift.

    For lifted trucks, the Bilstein 5100 series is the only choice. With a few exceptions, all Heavy Duty shocks are designed only for use on stock height trucks. Bilstein 5100 shocks are designed for every size of lift for popular trucks, so whether your truck is a modified daily driver or an all-out offroad monster, there is a Bilstein 5100 shock to fit it.
  • I've used Bilstein 4600s on my last three trucks, a 2003 Ford Excursion, a 2011 Ford F-250, and a 2013 Ram 3500. I'm sold on them. I tried a set of Ranchos 9000s on my old Excursion, but two didn't last a year. Since then, I've been a Bilstein fan.
  • Some people have complained about the Rancho adjustments corroding in the rust belt. After three ski seasons (November to April) running through deicer weekly mine still worked fine...
  • billtex wrote:
    MN Ben wrote:
    Good to know. I am about to pull the triger on the Rancho RS9000XL's.


    9000's in Minnesota?
    Doesn't it snow there?


    I don't understand. What does snow in Miinesota have to do with shocks?
    Ben
  • We run the Bilstein 4600's too. Truck handles like a sports car with the camper on. Good ride when the camper is off too.
  • MN Ben wrote:
    Good to know. I am about to pull the triger on the Rancho RS9000XL's.


    9000's in Minnesota?
    Doesn't it snow there?
  • Good to know. I am about to pull the triger on the Rancho RS9000XL's.