Yukon Gear Standard Open Spider Gear Kit For 11.5in GM w/ 30 Spline Axles Suspension>Bushing Kits This Resonator is designed to

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Yukon Gear Standard Open Spider Gear Kit For 11.5in GM w/ 30 Spline Axles Suspension>Bushing Kits This Resonator is designed to11. 5in. cases and spiders came in two different sizes; with large and small hub sizes on the side gears. Small hub diameter is 1. 816in. and came in 07 down GM differentials. Large hub diameter is 2. 060in. and came in 08 up GM differentials and all Dodge differentials. This is a universal spider gear kit with adapters to fit either design. The early cross pin shaft included in the kit works with snap ring design carrier only.