Lockup Shift
LOCKUP SHIFT1. Assemble return spring and lockup hub in lockup collar and retain with snap ring, completing 2W-4W lockup assembly.
2. Install rail shaft in transfer case, through reduction shift fork assembly previously installed and into blind hole in case.
3. Engage lockup fork in groove in 2W-4W lockup assembly and slide this group down over output shaft and rail shaft.
4. Install shift collar hub, engaging splines on output shaft and in 2W-4W lockup assembly.
5. On electric shift units only, install electric shift cam group previously assembled and clutch housing as follow:
1. Position electric shift cam group rotated so that end of torsion spring will contact side of reduction shift fork assembly that faces up, toward top of case.
2. Holding rail shaft down, raise up fork assemblies slightly. Rotate electric shift cam group into position so that roller on reduction shift fork assembly is in groove in shift cam and button on lockup fork is on cam end. Then lower this group of parts into the transfer case engaging shift shaft on pin in transfer case.
3. Position clutch housing in transfer case over shift collar hub. Attach with retaining ring in clutch collar hub groove.