Detroit TrueTrac Differential - 30 Spline - 3.73 Ratio and Down - Dana 44 913A589 BAT-RDHX Inside the CNC-machined billet housing

Inside the CNC-machined billet housing is a polished stainless steel shaft that is supported with sealed ball bearing on the top and a long bushing on the bottom

1978-1979 Buick Opel

Derale has integrated their high performing shrouded Powerpacks with the ultimate fan controller

GM A-Body / B-Body / F-Body / X-Body 1966-74

29-1/4 in Long

Detroit TrueTrac Differential - 30 Spline - 3.73 Ratio and Down - Dana 44 913A589 BAT-RDHX Inside the CNC-machined billet housingDetroit Truetrac 913A589 30 Spline 1. 31 in. Axle Shaft Diameter 3. 73 and Down Ring Gear Pinion Ratio First Helical Gear Differential Eliminates Need For Wearable Parts Maintenance Free Traction Proven Design And Effective Performance Durable Smooth Quiet Operation The legendary Detroit Locker began the revolution in performance differentials and still leads the industry today as an Eaton brand. The Detroit Locker is the most durable and dependable