XC Frame Rail Configurations

To engineer vehicles for top performance and meet the unique needs of all of our coachbuilder partners, the XC Chassis is available in straight-, lowered-, raised-rail and XCM Modular configuration. All rails are constructed of continuous 9-inch-high 50,000 psi steel with cross-members located at high-stress areas to provide a solid foundation and minimize stress so windows and doors perform properly for the life of the coach.

XCS - Straight Rail

  • C-Channel
  • Rail size: 9.125" x 3" x 0.3125"
  • Single rail connects the front and rear suspension
  • Lowered rear section allows flat floor throughout the coach

XCL - Lowered Rail

  • C-Channel
  • Upper and lower rail size: 9" x 2.75" x 0.25"
  • Inverted design of lower rail allows increased height in above-the-rail storage
  • Provides coach builders flexibility in basement pass-through storage design
  • Lower center of gravity improves handling
  • Rear and side cooling packages
  • I-beam front axle standard; independent front suspension optional

XCR - Raised Rail

  • C-Channel
  • Upper and lower rail size: 9" x 2.75" x 0.25"
  • Lowered rear section allows flat floor throughout the coach
  • Provides flat basement-floor pass-through storage with raised ceiling height for more space
  • Rear and side cooling packages
  • I-beam front axle standard; independent front suspension (IFS) optional

XCM - Modular Rail

  • Like a bridge, modular frames get their rigidity from an engineered truss structure
  • Allows coach manufacturer more versatility with basement configuration to maximize storage capacity

XC Wheel Base

All Configurations

  • Wheel Base Range: 208" - 294"
  • Accommodates coach floor plans up to 45 feet with tag