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Truck and Jeep Parts Home » Drivetrain & Differential » Differentials » Detroit Locker GM 8.5 Inch/8.6 Inch 10 Bolt 30 Spline Automatic Locker - 187C148A

Detroit Locker GM 8.5 Inch/8.6 Inch 10 Bolt 30 Spline Automatic Locker - 187C148A

Detroit Locker | Part Number: EAT187C148A
Part Number: EAT187C148A
  • Technical Details

    • For Use With 30 Spline Axles
    • For Use With 2.73 And Up Gears
    • Will Fit 8.6in. With use of G/2 35-2021L Master Kit
    • Automatic Locking
    • Legendary Traction
    • Unmatched Durability
    • 1998 and earlier with bearing bore of 2.89 inch require bearing LM102949 and LM102911

The Detroit Locker maximizes traction by delivering 100% of the torque to both drive wheels. It is engineered to keep both wheels in a constant drive mode, and has the ability to automatically allow wheel speed differentiation when required. No other performance differential has the reputation for delivering traction in mud, snow, rocks and on the track.

Installation instructions are in PDF format. You will need Adobe Reader to view these files.
Download Instructions

Axle LocationAxle LocationAxle TypeAxle TypeFitmentPopular Axle ManufactureDifferential TypeAxle Spline
FrontRearGM 10 Bolt 8.5 InchesGM 10 Bolt 8.6 InchesUniversal FitGMAutomatic Locker30 Splines

Customer Reviews

Questions & Answers

  • Q:

    "I have a 99 Chevy Tahoe LS 4x4 with a GT4 rear end and want to lock it (posi, front and rear) the cheapest way possible. Is it possible to put a g80 differential inside the GT4 axle housing? If not do they make some kind of add on that can be installed in my differential to make it posi lok? Will this fit in my housing?"
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