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28 Spline

  •      GM 8.5" Powergrip 28 Spline Posi LSD
    $365.00 Choose Options GM 8.5" Powergrip 28 Spline Posi LSD
    New Clutch type posi differential provides aggressive yet smooth traction, perfect for street and performance applications. These units are fully rebuildable and use Eaton type internal components. We recommend using...

  •     1972-1987 GM 8.5" Powertrax Grip LS Posi Differential 28 Spline LS201028
    $443.35 1972-1987 GM 8.5" Powertrax Grip LS Posi Differential 28 Spline LS201028
    Powertrax Grip LS Traction Systems are the latest design in traction using carbon fiber and steel friction plate technology for smooth, dependable operation that combines a limited-slip differential with the strength of a...

  •    GM 8.5" Auburn HP Posi Differential 28 Spline 542018
    $395.00 GM 8.5" Auburn HP Posi Differential 28 Spline 542018
    Hook up with Auburn Gear High Performance series differentials and outperform the competition! These differentials deliver superior performance through a unique cone-clutch design that transfers more power to the...

  •   GM 8.5" Auburn Pro Posi Differential 28 Spline 542050
    $485.00 GM 8.5" Auburn Pro Posi Differential 28 Spline 542050
    Rev it up and pop the clutch! Auburn Gear Pro series differentials offer the best in controlled power transfer! Built tough with a unique cone-clutch design, Pro Series differentials deliver even higher bias torque than...

  •  GM 8.5" Detroit Truetrac Posi 28 Spline 912A556
    $450.00 GM 8.5" Detroit Truetrac Posi 28 Spline 912A556
    The Detroit Truetrac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics. Operation The Truetrac operates as a standard or open differential...

  • 1972-1987 GM 8.5" Yukon Duragrip 28 Spline Posi Master Install Pkg
    $495.09 1972-1987 GM 8.5" Yukon Duragrip 28 Spline Posi Master Install Pkg
    The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Dura Grip...

  • GM 8.5" Eaton Posi LSD 28 Spline 19557-10
    $435.00 GM 8.5" Eaton Posi LSD 28 Spline 19557-10
    The Eaton Posi limited-slip differential prevents wheel slip before it can get started. To do that, carbon disc clutch packs, preloaded by a central spring assembly, are located behind each differential side gear. When...