Shifting Between 2H & 4H
Transfer case can be shifted between 2H and 4H with vehicle stopped or at normal road speed by depressing selector 4 X 4 button. Amber indicator light will illuminate when vehicle is in 4WD.
Shifting Between High/Low Ranges
Stop vehicle and shift transmission to Neutral. On manual transmission models, disengage clutch before depressing LOW RANGE button. On all models, LOW RANGE light should illuminate. DO NOT attempt to shift from or to low range with vehicle in motion.
| CAUTION | DO NOT shift to or from 4L when vehicle is in motion or gear clash will damage transfer case. Also, transfer case will be damaged if shifted from 2H to 4H with hub locks in FREE position when vehicle is in motion. |
When using 2WD, shift transfer case into 2H position and manually turn hub lock selector knob counterclockwise to FREE position. When using 4WD, lock both hubs by turning selector knob clockwise to LOCK position. If hub teeth DO NOT engage with knob in this position, a slight movement of wheel in either direction will complete locking procedure.
If vehicle is stopped, place transmission in Neutral and select transfer case shift position. If vehicle is moving, transfer case may be shifted between 2H and 4H only, providing hub locks are in LOCK position. Shifting to or from 4L position requires vehicle be fully stopped and transmission in Neutral. Both hubs must be set in same function to avoid excess front differential wear on non-traction-lock front axles or steering pull on traction-lock front axles.
- Raise and support front of vehicle. Remove front wheels. Remove locking hubs. See «MANUAL LOCKING HUBS R & I»(ref-96350-S06712807132001100500000) under REMOVAL & INSTALLATION.
- Using a torque wrench and Spanner Lock Nut Wrench (T86T-1197-A), unlock wheel bearing adjusting nut locking splines by applying inward pressure. Tighten adjusting nut to 70 ft. lbs. (95 N.m) while turning wheel back and forth. (Scheme 3) NOTE: Adjusting nut will not tighten past 70 ft. lbs. (95 N.m). Threaded portion of nut will ratchet in assembly.
- Applying inward pressure to spanner lock nut wrench to disengage locking splines, back off adjusting nut about 90 degrees. Retighten adjusting nut to 15-20 ft. lbs. (20-27 N.m).
- Final end play of hub and rotor assembly should be zero. Install locking hub. Install wheels and tighten wheel lug nuts to specification. See «TORQUE SPECIFICATIONS»(ref-96350-S35886881222001100500000).
Scheme 3
- Raise and support front of vehicle. Remove wheels. Remove locking hub assembly. See «AUTOMATIC LOCKING HUBS R & I»(ref-96350-S31059594812001100500000) or «MANUAL LOCKING HUBS R & I»(ref-96350-S06712807132001100500000) under REMOVAL & INSTALLATION.
- Remove outer lock nut with Spanner Lock Nut Wrench (D85T-1197-A). (Scheme 4) Remove lock washer. Tighten inner lock nut to 50 ft. lbs. (68 N.m). Back off inner lock nut and retighten to 30-40 ft. lbs. (41-54 N.m). While rotating hub, back off inner lock nut 90 degrees.
- Install lock washer so key is positioned in spindle groove. Rotate inner lock nut so pin is aligned in nearest lock washer hole. Install and tighten outer lock nut to 160-205 ft. lbs. (217-278 N.m). Final end play of hub and rotor assembly should be 0-.004" (0-.10 mm).
- If end play is beyond specification remove hub and bearing assembly and inspect components for excessive wear or damage. Replace hub and/or bearing assemblies as necessary, then reinstall components. Install hub locks. Install wheels and tighten wheel lug nuts to specification. See «TORQUE SPECIFICATIONS»(ref-96350-S35886881222001100500000).
