Cast from lightweight 356-T6 aluminum with super strong web-reinforced design, the cover also functions as a girdle for the differential thanks to load bolts. By reducing the amount of flex while under load, the bolts significantly reduce bearing wear and chipped teeth on the ring and pinion. The cover is also equipped with a dip stick and magnetic drain plug for easy service.
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| Chrysler 8.25 | Chrysler 9.25 | Ford 8.8 | GM 10 Bolt 8.5" | AAM 11.5" | |
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| RAW ALUMINUM W/LOAD BOLTS | 40-2029-1AL | 40-2028-1AL | 40-2013-1AL | 40-2021-1AL | 40-2024AL |
| GLOSS BLACK W/LOAD BOLTS | 40-2029-1ALB | 40-2028-1ALB | 40-2013-1ALB | 40-2021-1ALB | 40-2024ALB |
