There are 19 choices

• 8.8" ring gear
  • 3.31 ratio
  • 3.55 ratio
  • 3.73 ratio
• 9.75" ring gear
  • from 12/20/10
    • Base payload package (6 lug axles)
      • electronic locking differential
        • 3.73 ratio
        • 4.10 ratio
      • Without electronic locking differential
        • 3.15 ratio
        • 3.31 ratio
        • 3.55 ratio
        • 3.73 ratio
        • 4.10 ratio
    • heavy duty (7 lug axles)
      • (3.73 ratio)
  • thru 12/19/10
    • Base payload package (6 lug axles)
      • electronic locking differential
        • 3.73 ratio
        • 4.10 ratio
      • Without electronic locking differential
        • 3.15 ratio
        • 3.31 ratio
        • 3.55 ratio
        • 3.73 ratio
        • 4.10 ratio
    • heavy duty payload package (7 lug axles)
      • (3.73 ratio)