Borg Warner 1350 Electronic Shift

Fig. 2 Transfer case mounting. Borg Warner Model 13-50 w/electronic shift control:

1. Raise the vehicle. If so equipped, remove skid plate from the frame.
2. Place a drain pan under transfer case and remove drain plug. Drain fluid from the transfer case.
3. Remove the wire connector from the feedwire harness at the rear of the transfer case. First squeeze the locking tabs, then pull the connectors apart. Do not pull directly on the wires.
4. Disconnect front driveshaft from the axle input yoke. Pull the driveshaft and front boot assembly out of the transfer case front output shaft.
5. Disconnect the rear driveshaft from the transfer case rear output shaft flange. Disconnect the speedometer driven gear from the transfer case rear cover. Disconnect the vent hose from the mounting bracket.
6. Support the transfer case with a suitable transmission jack. Remove the five bolts retaining the transfer case to the transmission and the extension housing. Slide the transfer case rearward off the transmission output shaft and lower the transfer case from the vehicle. Remove the gasket from the transfer case and transmission housing.
7. Place a new gasket between the transfer case and the transmission extension. Raise the transfer case with the transmission jack so that the transmission output shaft aligns with the splined transfer case input shaft. Slide the transfer case forward onto the transmission output shaft and onto the dowel pin. Install the five transfer case retaining bolts to the extension housing. Tighten the bolts to 25-43 ft.lb. in the counter clockwise direction.
8. Remove the transmission jack from the transfer case. Install the vent hose so that the white marking on the hose aligns with the notch in the mounting bracket. Connect the speedometer driven gear to the transfer case rear cover. Tighten the screw to 20-25 in.lbs.
9. Connect the rear driveshaft to the transfer case output shaft flange. Tighten the bolts to 61-87 ft.lb.. Clean the transfer case front output shaft female splines. Apply 5-8 grams of Long-Lift Lubricant or equivalent to the splines. Insert the front driveshaft male spline.
10. Connect the front driveshaft to the axle input yoke. Tighten the bolts to 12-15 ft.lb.. Push the driveshaft boot to engage the external groove on the transfer case front output shaft. Connect the wire connectors on the rear of the transfer case, making sure that the retaining tabs lock.
11. Install the drain plug and tighten to 14-22 ft.lb.. Remove the fill plug and install Motorcraft Dexron II Automatic Transmission Fluid or equivalent to the bottom of the fill hole. Install fill plug and tighten to 14-22 ft.lb.. Install the skid plate and lower vehicle.