Richmond Ring and Pinion - 3.73 Ratio - 30 Spline Pinion - 3 Series - 8.875 in - GM 12-Bolt 49-0039-1 HVH - High Velocity Heads 99-04 ExcursionMile Marker is a

99-04 ExcursionMile Marker is a well established

producing the highest quality products at competitive prices

Trailing arm mounting hole centerline to edge of shock mount spacer is 4¼”

but every other shape on this nose is there to help build downforce

Richmond Ring and Pinion - 3.73 Ratio - 30 Spline Pinion - 3 Series - 8.875 in - GM 12-Bolt 49-0039-1 HVH - High Velocity Heads 99-04 ExcursionMile Marker is aRICHMOND is the leading manufacturer of professional quality, hi performance ring and pinion sets. For over 80 years, the Double Diamond has signified the highest quality gears in the racing industry! GM 12 Bolt Installation Notes: When replacing a 2. 73 3. 90 ratio with a Richmond Hi Performance Ring & Pinion, the carrier must be replaced with a carrier from a stock 4. 10, 4. 56 or 4. 88 ratio. When installing 5. 14 to 6. 14 ring & pinion sets,