Overview
The G2 Axle and Gear 40-2033AL is a cast aluminum differential cover for Dana 44 front or rear axles. G2 designed it to protect the ring and pinion while helping cool the gear oil for longer bearing life, and the raw aluminum finish adds a distinct look to the axle.
The cover is made from high strength heat treated aluminum to withstand direct hits. Its reinforcing ribs add rigidity, and the cover is heat treated and shot peened to help it handle a direct impact. The seal surface is fully machined.
Key features
- Lightweight cast aluminum body
- Designed to help cool gear oil
- Reinforcing ribs for rigidity and strength
- Heat treated and shot peened
- Fully machined seal surface
- Natural raw aluminum finish
Gear oil and axle care
The differential cover is part of the axle’s oil system, so its job goes beyond protection. Gear oil that runs cooler lasts longer and keeps the ring and pinion and bearings in better condition. Aluminum covers shed heat faster than steel, which helps when the axle works hard on long grades or in warm weather.
Between oil changes, check the cover and the surrounding housing for seepage around the gasket and bolts. A clean, dry seal surface is the first defense against leaks, so clean the mating surface completely when the cover comes off. Replace the gasket whenever the cover is removed.
Aluminum can be damaged by heavy impacts that bend a cover or crack a rib, so inspect after rock strikes. Keep the fill and drain plugs tight and use the gear oil type your axle requires.
- Inspect for seepage after trail use
- Clean the seal surface before reinstalling
- Replace the gasket whenever the cover is removed
Specifications
| Brand | G2 Axle and Gear |
|---|---|
| Part number | 40-2033AL |
| Axle size | Dana 44 |
| Axle location | Front or rear |
| Material | Aluminum, heat treated |
| Oil capacity | Extra capacity |
| Finish | Natural (raw aluminum) |
| UPC | 631410096170 |
Vehicle fitment
The cover is made for Dana 44 front and rear axles. Confirm fit by checking the axle housing and the cover mounting bolts against your axle before ordering.
The cover is sized to the Dana 44 housing, not to a specific model year, so confirm the axle type on your vehicle before ordering.
Installation notes
The cover is sized for the Dana 44 housing, so measure or identify the axle before fitting it.
What’s included
Check the package contents against your installation before starting, including the gasket and hardware.









