Differentials / Lockers
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Tools - Hummer / HMMWV Specific
Winching and Recovery
Also known as the VSSB (Vehicle Speed Sensor Buffer) or DRAC (Digital Ratio Adapter Computer), this module matches your speedometer to changes in differential ratio and/or tire size.
Currently in-stock for 2.56 and 2.73 differentials with 40″ or 42″ tires.
Custom combinations available, contact us for details.
Plug-in replacement for OEM adapter. Fits 1994 – 2003 Hummer / H1.
2.56:1 Diff with 40" Tires, 2.56:1 Diff with 42" Tires, 2.73:1 Diff with 40" Tires, 2.73:1 Diff with 42" Tires
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