Thick GM Chevy 12 Bolt Car 8.875” Richmond Excel Differential Ring and Pinion Gear Set Ratio::4.10 Pontiac Firebird (2000-2002)

Pontiac Firebird (2000-2002)

GMC Yukon XL 2500 (2000-2013)

2003-2009 GMC C4500 Topkick

Mercury Capri (1979 - 1986)

625" axle housings

Thick GM Chevy 12 Bolt Car 8.875” Richmond Excel Differential Ring and Pinion Gear Set Ratio::4.10 Pontiac Firebird (2000-2002)Thick GM 12 Bolt Car Ring and Pinion Set by Richmond Excel Description Package Includes: (1) Richmond Excel Ring and Pinion Gear Set *Note: Please keep in mind the GM 8. 75" 12 bolt car differentials have carrier breaks. If you are keeping your stock carrier, please choose a ratio that fits within your case break. *Note: This is a THICK gear set. Thick gears give you the ability to run a numerically higher ratio on a numerically lower carrier break.