Overview
The Crown Automotive SR4 shift fork, part number J8133418, is a replacement fork for SR4, T4 and T5 transmissions. It covers 1st through 5th gear forks, and two are needed per fork.
It fits 1981 to 1983 Jeep CJ5, 1981 to 1986 CJ7, 1982 to 1985 Cherokee SJ and XJ models, and 1982 to 1983 Jeep J10 and J20 trucks.
Key features
- Shift fork for 1st through 5th gear
- Two are required per fork.
- Made for SR4, T4 and T5 transmissions.
- Covers CJ5, CJ7, Cherokee and J-series trucks.
Choosing the right fork set
Shift forks on SR4, T4 and T5 transmissions guide the synchronizer sleeves that select each gear. Because several forks work together on the shift rail system, the set is best judged as a whole rather than one piece at a time. Note each fork’s position and orientation before removal so reassembly matches the original layout.
Forks that show scoring, uneven contact wear or bent tines should be replaced rather than reused. Check the shift rail for wear as well, because a worn rail can cause a new fork to bind. Clean the rail and the fork bore thoroughly and apply a suitable transmission lubricant during assembly.
Because the forks sit inside the transmission, a shop with the right tools can open and reassemble the case cleanly. Keep track of shims and retaining hardware, and check gear engagement by hand before closing the housing.
- Replace forks with scoring or bent tines
- Inspect the shift rail for wear
- Check gear engagement by hand before closing the case
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | J8133418 |
| UPC | 848399071542 |
| Transmissions | SR4, T4, T5 |
| Gears | 1st through 5th |
| Quantity | Two per fork |
| Fit type | Direct fit |
Vehicle fitment
It fits 1982 to 1983 Jeep Cherokee (SJ) in Base, Chief and Pioneer trims; 1984 to 1985 Jeep Cherokee (XJ) in Base, Chief, Laredo and Pioneer trims; 1981 to 1983 Jeep CJ5 in Base, Laredo, Limited and Renegade trims; 1981 to 1986 Jeep CJ7 in Base, Laredo, Limited and Renegade trims; and 1982 to 1983 Jeep J10 and J20 in Base trim.
Coverage ends with the Cherokee XJ after 1985, and Wrangler models fall outside this range. Confirm fit for your vehicle’s year, model and trim before ordering.
Installation notes
Forks are internal transmission parts, so the work is best left to a shop that can open and reassemble the transmission. Plan for two per fork.
What’s included
Two are needed per fork. Check the package contents against your installation before starting.


