Overview
The G2 CORE 44 Brute differential cover, part number 40-2051MB, is a cast aluminum cover for CORE 44 differentials. It has a ball-milled black finish, a heat treated and shot peened body built to withstand direct impact, and a magnetic dipstick and drain plug.
The seal surface is fully machined and uses an o-ring, which G2 says gives a leak free installation. The cast aluminum body is meant to dissipate heat.
Key features
- Cast from lightweight aluminum to dissipate heat
- Ball-milled black finish
- Heat treated and shot peened to handle direct impact
- Fully machined seal surface with o-ring
- Magnetic dipstick and drain plug to isolate foreign debris from moving parts
Differential cover upkeep
The cover keeps gear oil in and dirt out, so its seal and drain area see regular service. Cast aluminum transfers heat well, but thin sections can dent if struck, so inspect the cover after rock or trail contact.
The magnetic dipstick and drain plug collect metal particles from the gear train, which helps show wear early. Check the magnet during fluid changes and remove any heavy debris.
Keep the mating surface clean and free of old gasket material. Small nicks can cause leaks, so fix them before refitting the cover.
- Check the o-ring for cuts or flattening
- Inspect the magnet for metal buildup
- Look for dents or cracks after trail contact
- Replace fluid on the schedule set by your gear service
Specifications
| Brand | G2 Axle and Gear |
|---|---|
| Part number | 40-2051MB |
| UPC | 631410118605 |
| Material | Lightweight cast aluminum |
| Finish | Ball-milled black |
| Seal surface | Fully machined with o-ring |
| Features | Magnetic dipstick and drain plug |
Vehicle fitment
It fits CORE 44 differentials, and it is matched by differential model rather than by vehicle year.
Confirm the cover matches your Dana 44 differential before ordering.
What’s included
It is a single differential cover; gaskets, bolts and fluid are not included.
