Detroit TrueTrac 914A643 Differential Features:

• Ring gear ratio: 3.73 - 4.56
• Differential type: Limited Slip (LSD)
• Ring gear size: 9.500 in
• Gear spline tooth count: 33
• Improved traction relative to other rear wheel and four wheel drive vehicles
• Maintenance free - requires no special lubrication or friction modifiers
• Lifetime torque bias retention
• Simple, proven design
• Smooth and quiet operation
• Limits wheel spin-out and improves handling
• Performs open, until needed

Note: If you have a 2007 & newer truck the 2003-2006 ring & pinion must be used with this carrier.