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Ultimate Dana 44 AdvanTek Front Drive Unit, 21-23 Ford Bronco

Starting from: $3799.00

The Ultimate Dana 44 AdvanTEK FDU provides the strength and durability that you need to outfit your new Ford Bronco for off road performance. With a 32 spline differential and an aftermarket exclusive housing that allows you to use your choice of gear ratio, the Ultimate 44 AdvanTEK Front Drive Unit by Dana Corporation is everything you need, ready to go right out of the crate.

Ultimate Dana 44™ AdvanTEK® Front-Drive Unit Axle Features and Benefits

  • Dana-designed, cast-iron center housing allows for deep gear ratios not supported by the factory front drive unit to provide the perfect set up for your Bronco
  • 32-spline differential side gears provide improved strength for better off-road performance
  • Electronic locking differential offers optimal traction when you need it
  • Choose the best gear ratio for your Gen 6 Ford Bronco
  • Fully loaded, ready to install to save time and money
  • FAD-eliminated solid axle tube for increased strength
  • Cast iron tube provides added strength over stock aluminum tube.


Dana Part #: UD44FBRO488ELD32 (4.88 gear ratio), UD44FBRO538ELD32 (5.38 gear ratio)

Technical Specs

Ultimate D44 AdvanTEK FDU with E-Locker fitment:

  • 2021 Ford Bronco front drive unit upgrade.
  • 2022 Ford Bronco front drive unit upgrade.
  • 2023 Ford Bronco front drive unit upgrade.

Fitment note for Dana 44 AdvanTEK FDU Upgrade by Dana Spicer

  • For use with to Spicer Extreme 32 spline axle half shafts. Factory 29 spline axles will not fit.

Prop. 65 Warning for California Residents

WARNING: This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. Learn more