This page is designed to assist you in identifying the transmission installed in your vehicle. We are making the assumption that your vehicle has the original type transmission that was installed at the factory. In most cases, if your vehicle has been converted from an overdrive to a 3-speed, you can still use this guide for identification. If the drivetrain in your vehicle has been customized in any other way, you should call our techs for help identifying your transmission.
Front Wheel Drive |
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3 Speed |
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| Year | Model | ||
| 1978-up | 404 (413, 470, 670) | 1-1/2″ manual shaft, removable differential cover. Lock-Up has electrical connector next to dipstick hole. | Pictures |
| 1987-up | 404 Lock-Up (413, 470, 670, All Turbos) | ||
Overdrive |
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| Year | Model | ||
| 1988-up | 604 | 4″ manual shaft, large black box on side, removable differential cover. (Read More…) | |
| 1993-up | 606 | Concorde, Intrepred, LHS, New Yorker, Eagle Vision | |
Rear Wheel Drive |
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3 Speed
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| Year | Model | ||
| 1962-1977 | 727 (Non Lock-Up) | Lock-Up has hole through input shaft, 18-1/2″ extension housing. | |
| 1978-up | 727 (Lock-Up or Non Lock-Up) | ||
| 1962-1977 | 904 (Non Lock-Up) | Lock-Up has hole through input shaft, 14-3/4″ extension housing, has hump on the case for the pump. | Pictures |
| 1978-up | 904 (Lock-Up or Non Lock-Up) | ||
Overdrive |
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| Year | Model | ||
| 1988-1994 | A500 (904 OD) | Lock-Up has wires at left rear corner, pointing up. 21-1/2″ extension housing, raised ribbed area running along left side, square oil pan with one corner cut. | Pictures |
| 1995-up | A500 (904 OD) | Has 8-pin connector. | |
| 1988-1994 | A518 (727 OD) | Non-Lock-Up has 2 wires, Lock-Up has 3 wires at left rear corner, pointing up. 21-1/2″ extension housing, oil pan with one corner cut, bulged area on opposite side of pan by dipstick hole. | Pictures |
| 1995-up | A518 (727 OD) | Has 8-pin connector. It will be a 1999 if the case has a 1/2″ by 10″ wide notch in the bottom of the bell. 1999 which transducer? | |
| 2000-up | A518(727 OD) | The Nutural Safety switch will have 3 wire or 5 wire. 3 wire is a small hole in the case and a 5 wire is a large hole in the case | |
| 2005 -up | A518 Diesel & V10 | Has bosses for throttle valve actuator, 2wd also has a 2.176 op shaft bushing | |
| 1989-1995 | A500 – A518(2wd) | Has 2 speedo cables | |
| 1996-1997 | A500 – A518(2wd | Has 2 speedo cables | |
| 1998-Up | A500 – A518(2wd) | Has 1 sensor hole | |
| 1988-1993 | A518 | Has 3 wire for the lockup and it also had 2 wire for a non lock-up | |
| 1989-1994 | A518 | The overdrive tail housing holes can be offset or straight | |
| 2000-Up | A500 | Jeep may have mounts on top of tail housing | |
| 1987-Up | 904(Lock-Up) | 1 or 2 wire ectric lock-up | |
