Overview
The Crown Automotive J0636566 is a pinion oil slinger named for the Dana 30 axle. A pinion oil slinger is a shield fitted at the pinion of an axle housing. It is fitted to the 1986 to 1992 Jeep Comanche (MJ) with a Dana 44 rear axle, which differs from the Dana 30 in the title, so confirm the axle before buying.
Crown Automotive makes replacement parts for Jeep vehicles. This slinger is a direct-fit item.
Key features
- Replacement pinion oil slinger for Dana 30 axles, per the title
- Direct-fit replacement design
- Fitment note names the 1986 to 1992 Jeep Comanche (MJ)
- Crown Automotive part number J0636566
Checking your axle before buying
The pinion oil slinger sits at the front of the axle housing and throws lubricant away from the pinion seal. When it is bent, cracked or loose, oil can reach the seal and leak, or splash where it is not wanted. Checking the slinger during a seal replacement is a sensible habit, since the part is easy to reach once the driveshaft is off.
Axle identification matters before you buy any slinger. Dana 30 and Dana 44 axles differ in housing and pinion size, so read the axle tag or measure the housing before ordering. Match the slinger to the axle in the vehicle, not only the model name, and compare the old and new parts side by side before fitting. A slinger that sits wrong can rub the pinion flange.
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | J0636566 |
| UPC | 848399051797 |
| Axle type | Dana 30 (per title); Dana 44 rear axle (per fitment note) |
| Fitment method | Direct fit |
Vehicle fitment
This part has no fitment table. The Comanche (MJ) pairing with a Dana 44 rear axle conflicts with the Dana 30 in the title, so check the axle before ordering.
Other Jeep models, including the Cherokee XJ and the Wrangler YJ, are not confirmed for this slinger. Confirm your vehicle’s year, model and trim before ordering.








