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The Next Generation Albins AGB R4. The Albins AGB R4 is a major upgrade to the original AGB. New R4 features include wider 2nd through 4th gears, a newly designed shift mechanism, a stronger diff, and a revised shift pattern for paddle shifted vehicles, all packaged in the same size case as the original. Recently, Cody Parkhouse of Parkhouse Motorsports took his R4-equipped Unlimited vehicle to the top of the Class 1 podium at the SCORE Baja 400 and First Overall at the 2026 LEGACY Parker Dam 500.

Learn more about our line of racing transaxles.

Albins AGB R4 features include:

• Wider 2nd, 3rd, and 4th gears (4-5mm) than standard AGB
• Redesigned planetary differential increases the diameter of the sun gear, adds support to the drive flanges, and adds one more planetary gear for increased load carrying capacity.
  Redesigned shift mechanism increases strength and precision
• Redesigned side cover for increased rigidity, preventing differential deflection under high shock loads
• Optional shift pattern available for paddle shifted vehicles
• 11.5" diameter Klingelnberg Palloid Ring & Pinion
• Spiral bevel final drive reduces frictional losses and transfers maximum power to the wheels
• Cast LM25 aluminum housings heat treated to T6 condition and stainless shot blasted after casting
• Helical-cut drive gears increase load carrying capacity
• Heavy duty constant mesh reverse gear
  Internally ribbed differential housing increases ground clearance

For a complete set of  Albins AGB R4 features, options and pricing, click here.

Questions? Call +1 (805) 562-8600 or email us.