Keep in mind, that Bilstein has 2 different part numbers for our trucks. One is the regular Bilstein, the other is RCD made by Bilstien. Its exactly the same shock. I found my set on E-bay, and after looking at the part numbers, they did not match Bilsteins website's part#. So I called Bilstein and they said I had the RCD version. Same shock. Only difference is it has a small RCD sticker on it.

 

According to Bilstein the RCD and regular Bilsteins are different..


Bilstein 5100 Info - From Bilstein
Hey all

I emailed Bilstein about their 5100's and why some have 2 settings and some have 3. I also asked them to settle the dispute on which way the rears get mounted. Boot up or boot down.. Here is their reply..

----- Thanks for you inquiry for Bilstein shock absorbers. You have made a wise choice with your decision to use Bilstein 5100 Series to level your F150. I am sure you will be very pleased with the end result.

As for your questions. First, Bilstein produces two different shocks for this application. One of which, is proprietary through RCD Suspension. The other is Bilstein's general aftermarket offering. Both shocks are exactly the same with the exception of the snap ring grooves.

Part# BE5-C298-H1 is Bilstein's standard product. This shock has 3 grooves for 0" - 1" - 2" ride height options.

Part# BE5-C293-T0 is the RCD product. This shock has 2 grooves, 0" & 2".

As for the rear mounting orientation. The rear is designed to mount body up with the boot down.