Overview
The Crown Automotive 83503156 is a rear extension housing for NP231 and NP242 transfer cases. An extension housing mounts to the rear of the transfer case, so the housing has to match the transfer case model it is installed on.
This housing is a direct fit for NP231 and NP242 transfer cases. Check your transfer case model before using it.
Key features
- Replacement rear extension housing for NP231 and NP242 transfer cases
- Described by Crown Automotive as a direct fit
- Lists Crown Automotive part number 83503156 and UPC 848399025286
- Crown Automotive offers replacement parts for Jeep vehicles
Sealing and mounting considerations
The rear extension housing supports the output shaft bearing and the seal that keeps lubricant from leaking along the shaft. Because it sets the output shaft position, its alignment affects driveshaft angle and the wear on the front and rear u-joints. When a housing is replaced, the surfaces it seats against should be clean and free of old gasket material.
Seal and gasket condition matter as much as the housing itself. Check for fluid seepage around the housing, a worn output seal or a loose mounting fastener after the first few drives. A new seal on a worn shaft surface can leak, so inspect the shaft for grooves before final assembly.
Fill and check the fluid only after the housing is fully tightened, and recheck for leaks after a short drive.
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | 83503156 |
| UPC | 848399025286 |
| Part type | Rear extension housing (transfer case) |
| Compatible transfer cases | NP231 and NP242 |
| Fit type | Direct fit, per manufacturer description |
Vehicle fitment
The housing is for NP231 and NP242 transfer cases. Fit depends on your transfer case model, so confirm it before installing.
Confirm fit for your vehicle’s year, model and trim before ordering, and check the transfer case model before installation.
What’s included
Check the package contents, including gaskets and hardware, against your installation before starting.
