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Part #: AFE46-70380

AFE 46-70380 Street Series Rear Differential Cover

2017 Ford F-350/450 DRW (M300-14 Bolt Axle)
Part #: AFE46-70380
$261.24 $ $235.12
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The AFE 46-70380 Street Series Rear Differential Cover brings performance and engineering to the rear axle of your 2017 Ford F-350/450. The Street Series Differential Cover is built from a durable A356-T6 cast aluminum and has built-in reinforcing ribs for maximum strength. Featuring a raw finish with machined fins for a distinct look, the Street Series includes a magnetic fill and drain plug for maximum protection.  

5 Quart Gear Oil Capacity:
This cover has about a 5 quart gear oil capacity at the factory fill level, factory cover holds about 4 quarts.

Built-in Cooling Fins:
Built-in internal and external cooling fins increase surface area to maximize cooling of the differential oil.

Magnetic Drain/Fill Plug:
This system incorporates a magnetic drain and deep reach fill plug that captures loose particles for maximum rear-end protection.

Oil Level calibration plug:
A 1/8" NPT calibration plug is set to the factory fluid level which eliminates accidental overfilling.

Optional Accessories Available (Sold Separately):
This cover works great combined with a oil level sight glass (Part Number: 46-00001)


  • Raw Finish, Machined Fins
  • A356-T6 Cast Aluminum Construction
  • Reinforcing Ribs For Extra Strength & Rigidity
  • Magnetic Drain Plug & Fill Plug For Maximum Protection
Application Note: This Differential Cover only fits models with the M300-14 bolt axles. It will not fit on single rear wheel models. 


  • MFG. Number 46-70380
  • Manufacturer Name AFE
  • Shipping Weight 11.00 lb.
  • Shipping Length 16 in.
  • Shipping Width 15 in.
  • Shipping Height 6 in.
  • UPC 802959465325
  • Warranty Yes
  • Warranty Info Limited Lifetime
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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