Lemforder is the OEM Supplier to Mercedes for this part.
Complete kit: Includes metal & rubber collar, boot, clamps, spacers, snap ring and the bearing in the center. AKA: Center Support
Two-piece driveshafts use just one support, three-piece driveshafts (long wheelbase models) require two supports, one front and one rear.
This Kit is manufactured by Lemfoerder, the OEM supplier to Daimler in Germany. It is identical to those sold at a franchise Dodge, Mercedes Benz or Freightliner dealer.