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aFe Power Pro Series Rear Differential Cover Black w/ Machined Fins 14-18 Dodge Trucks 2500/3500 aFe AFE46-70392
aFe Power Pro Series Rear Differential Cover Black w/ Machined Fins 14-18 Dodge Trucks 2500/3500 aFe AFE46-70392
aFe Power Pro Series Rear Differential Cover Black w/ Machined Fins 14-18 Dodge Trucks 2500/3500 aFe AFE46-70392
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aFe Pro Dodge/Ram AAM 11.5/11.8 Rear Cover - Black

$ 462.50 $ 370.00
$ 370.00

Axle-specific differential protection

The aFe 46-70392 cover fits the specified AAM 11.5 / 11.8 - 14 bolt differential. Cast aluminum with reinforcing ribs, cooling fins, black powder-coating and machined fins.

Key Features

  • Cast aluminum with reinforcing ribs, cooling fins, black powder-coating and machined fins.
  • M12 x 1.25 magnetic drain plug with crush washer, 1/8-inch npt calibration plug, 3/4-inch npt magnetic fill plug with a 6-inch reach, and pre-installed 1-inch npt sight glass.
  • Calibration opening supports checking the correct oil level.
  • Manufacturer states this cover does not require a CARB EO number.

Fitment

Years Make Model Trim / required axle
2003-2007 Dodge Ram 3500 SLT; AAM 11.5 / 11.8 - 14 bolt
2006-2007 Dodge Ram 3500 Sport; AAM 11.5 / 11.8 - 14 bolt
2003-2007 Dodge Ram 3500 ST; AAM 11.5 / 11.8 - 14 bolt
2007 Dodge Ram 3500 TRX4; AAM 11.5 / 11.8 - 14 bolt
2013-2018 Ram 2500 Big Horn; AAM 11.5 / 11.8 - 14 bolt
2011-2018 Ram 2500 Laramie; AAM 11.5 / 11.8 - 14 bolt
2014-2015 Ram 2500 Laramie Limited; AAM 11.5 / 11.8 - 14 bolt
2011-2018 Ram 2500 Laramie Longhorn; AAM 11.5 / 11.8 - 14 bolt
2003 Dodge Ram 2500 Laramie; AAM 11.5 / 11.8 - 14 bolt
2005-2007 Dodge Ram 2500 Laramie; AAM 11.5 / 11.8 - 14 bolt
2003-2007 Dodge Ram 2500 SLT; AAM 11.5 / 11.8 - 14 bolt
2006-2007 Dodge Ram 2500 Sport; AAM 11.5 / 11.8 - 14 bolt
2003-2007 Dodge Ram 2500 ST; AAM 11.5 / 11.8 - 14 bolt
2006-2007 Dodge Ram 2500 TRX4; AAM 11.5 / 11.8 - 14 bolt
2011-2018 Ram 3500 Laramie Longhorn; AAM 11.5 / 11.8 - 14 bolt
2016-2018 Ram 3500 Limited; AAM 11.5 / 11.8 - 14 bolt
2013-2015 Ram 3500 Lone Star; AAM 11.5 / 11.8 - 14 bolt
2017 Ram 3500 Lone Star; AAM 11.5 / 11.8 - 14 bolt
2011-2018 Ram 3500 SLT; AAM 11.5 / 11.8 - 14 bolt
2011-2013 Ram 3500 ST; AAM 11.5 / 11.8 - 14 bolt
2013-2018 Ram 3500 Tradesman; AAM 11.5 / 11.8 - 14 bolt
2013-2015 Ram 2500 Lone Star; AAM 11.5 / 11.8 - 14 bolt
2012-2016 Ram 2500 Outdoorsman; AAM 11.5 / 11.8 - 14 bolt
2011-2018 Ram 2500 Power Wagon; AAM 11.5 / 11.8 - 14 bolt
2011-2018 Ram 2500 SLT; AAM 11.5 / 11.8 - 14 bolt
2011-2013 Ram 2500 ST; AAM 11.5 / 11.8 - 14 bolt
2013-2018 Ram 2500 Tradesman; AAM 11.5 / 11.8 - 14 bolt
2013-2018 Ram 3500 Big Horn; AAM 11.5 / 11.8 - 14 bolt
2011-2018 Ram 3500 Laramie; AAM 11.5 / 11.8 - 14 bolt
2003-2007 Dodge Ram 3500 Laramie; AAM 11.5 / 11.8 - 14 bolt
2016-2018 Ram 2500 Limited; AAM 11.5 / 11.8 - 14 bolt
2014-2015 Ram 3500 Laramie Limited; AAM 11.5 / 11.8 - 14 bolt

46-70392: The current exact manufacturer listing covers 2003-2018 Dodge/Ram 2500/3500 with AAM 11.5/11.8 rear axles, broader than the old store title's 2014-2018 wording. The exact manual names 5.9L diesel 2003-2007, 6.7L diesel 2007-2018, 5.7L gas 2010-2018 and 6.4L gas 2014-2018. Exact-part named tables restore missing earlier Dodge and Ram groups and the supported 2005 SLT/ST gaps. Other original bounds and gaps are retained. Verify the actual axle, coil/leaf-spring layout, brake bracket and boxed revision; the engine headings do not approve every axle supplied in those trucks.

Specifications

Detail Value
Manufacturer Part Number 46-70392
Position / axle Rear / AAM 11.5 / 11.8 - 14 bolt
Construction / finish Cast aluminum with reinforcing ribs, cooling fins, black powder-coating and machined fins.
Fill and sight glass M12 x 1.25 magnetic drain plug with crush washer, 1/8-inch NPT calibration plug, 3/4-inch NPT magnetic fill plug with a 6-inch reach, and pre-installed 1-inch NPT sight glass
Oil level Fill until oil flows from the side 1/8-inch calibration opening, about 4 quarts in the illustrated installation. Use the actual axle oil/additive specification and independently verify level if a lift has rotated the axle.
Tightening Tighten the mounting screws to 12-16 ft-lb in a crisscross pattern. This exact manual provides no numerical M12 drain or sway-bar fastener torque and no NPT turn count; do not borrow those values from another cover.

What's Included

  • One black cover 05-60812B, fourteen M8 x 1.25 x 30 screws, three M8 x 1.25 x 40 screws, seventeen flat washers, three spacers, M12 magnetic drain plug/crush washer, 1/8-inch calibration plug, 3/4-inch magnetic 6-inch fill plug and pre-installed sight glass. Longer screws replace short screws at the applicable brackets; the cover has a fourteen-bolt pattern.
  • Gear oil, axle additive, filters, couplers and tools are not established as included. Reuse the original OEM gasket as directed by this exact manual. A new gasket, RTV, gear oil or axle additive is not established in its bill of materials.

Related Parts

Explore aFe Power drivetrain parts. Select covers by actual axle identification.

Frequently Asked Questions

What is the 46-70392?

Cast aluminum with reinforcing ribs, cooling fins, black powder-coating and machined fins. Required axle: AAM 11.5 / 11.8 - 14 bolt.

Which applications and axle must be checked?

The current exact manufacturer listing covers 2003-2018 Dodge/Ram 2500/3500 with AAM 11.5/11.8 rear axles, broader than the old store title's 2014-2018 wording. The exact manual names 5.9L diesel 2003-2007, 6.7L diesel 2007-2018, 5.7L gas 2010-2018 and 6.4L gas 2014-2018. Exact-part named tables restore missing earlier Dodge and Ram groups and the supported 2005 SLT/ST gaps. Other original bounds and gaps are retained. Verify the actual axle, coil/leaf-spring layout, brake bracket and boxed revision; the engine headings do not approve every axle supplied in those trucks.

Which plugs and sight glass are included?

M12 x 1.25 magnetic drain plug with crush washer, 1/8-inch npt calibration plug, 3/4-inch npt magnetic fill plug with a 6-inch reach, and pre-installed 1-inch npt sight glass. The black cover's sight glass is pre-installed. The plain 1-inch side-plug and plain 3/4-inch fill-plug steps belong to the raw 46-70390 version.

Which mounting hardware is supplied?

One black cover 05-60812B, fourteen M8 x 1.25 x 30 screws, three M8 x 1.25 x 40 screws, seventeen flat washers, three spacers, M12 magnetic drain plug/crush washer, 1/8-inch calibration plug, 3/4-inch magnetic 6-inch fill plug and pre-installed sight glass. Longer screws replace short screws at the applicable brackets; the cover has a fourteen-bolt pattern.

Does the cover include a gasket and gear oil?

Gear oil, axle additive, filters, couplers and tools are not established as included. Reuse the original OEM gasket as directed by this exact manual. A new gasket, RTV, gear oil or axle additive is not established in its bill of materials.

How is the oil level set?

Fill until oil flows from the side 1/8-inch calibration opening, about 4 quarts in the illustrated installation. Use the actual axle oil/additive specification and independently verify level if a lift has rotated the axle.

Which tightening values apply?

Tighten the mounting screws to 12-16 ft-lb in a crisscross pattern. This exact manual provides no numerical M12 drain or sway-bar fastener torque and no NPT turn count; do not borrow those values from another cover.

What access and installation steps matter?

Block the tires on a flat dry surface and position a drain pan. Retain upper cover hardware while draining, then remove the cover. Clean and inspect the flat sealing face without gouging or rounding it. Reuse the original OEM gasket as directed by this exact manual. A new gasket, RTV, gear oil or axle additive is not established in its bill of materials. Where fitted, retain the brake-line bracket and brake cable pad. Restore the bracket with two long screws, two spacers and four washers; restore the cable pad with the third long screw, spacer and two washers. On coil-spring vehicles only, remove the four sway-bar bolts for access, then reinstall the sway bar using those original bolts. Install the appropriate hardware, fill by the specified level opening and inspect clearance and leaks. Follow the exact supplied revision.

Installation Instructions

Read the current manufacturer listing for 46-70392 and full exact-family installation manual.

Block the tires on a flat dry surface and position a drain pan. Retain upper cover hardware while draining, then remove the cover. Clean and inspect the flat sealing face without gouging or rounding it. Reuse the original OEM gasket as directed by this exact manual. A new gasket, RTV, gear oil or axle additive is not established in its bill of materials. Where fitted, retain the brake-line bracket and brake cable pad. Restore the bracket with two long screws, two spacers and four washers; restore the cable pad with the third long screw, spacer and two washers. On coil-spring vehicles only, remove the four sway-bar bolts for access, then reinstall the sway bar using those original bolts. Install the appropriate hardware, fill by the specified level opening and inspect clearance and leaks. Follow the exact supplied revision.

Tighten the mounting screws to 12-16 ft-lb in a crisscross pattern. This exact manual provides no numerical M12 drain or sway-bar fastener torque and no NPT turn count; do not borrow those values from another cover.

Fill until oil flows from the side 1/8-inch calibration opening, about 4 quarts in the illustrated installation. Use the actual axle oil/additive specification and independently verify level if a lift has rotated the axle.

46-70392: The black cover's sight glass is pre-installed. The plain 1-inch side-plug and plain 3/4-inch fill-plug steps belong to the raw 46-70390 version.

California Proposition 65 Warning

  • California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
  • This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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