I still wouldn't ever put effort into the transmission lever considering the T-case has a neutral. I just thought this lever was interesting and good knowledge.
If I thought I could make a reasonable amount on it I would design a bracket and cable for y'all, but I know there is no money in it and it goes against my opinions on how to perform the associated recovery.
Options are good. Thanks for your input.
I'll summarise in one place here for those playing along at home.
@Rok_Dr: This would be a draft suggested amendment to the recovery section of the RDEUIGOMS.
Transfer Case Neutral Stop Screw.
IA provide a neutral stop screw on the right side of the transfer case. This is the only endorsed method to unlock the Grenadier drivetrain for transportation, towing or recovery of a disabled vehicle. Further, it is the
only safe method to unlock the drivetrain for flat towing. Use of the neutral stop screw is described in the owner's manual. The neutral stop screw should be the first choice every time.
Other methods discussed here are workarounds which may be considered if the neutral stop screw is temporarily inaccessible due to the location of the vehicle. Urgency may also dictate an alternative approach be taken.
1. Transmission Parking Pawl Release Lever.
ZF provide a method to unlock the transmission of a vehicle via a parking pawl mechanical release lever fitted on the left side of the transmission. This lever affects the transmission only. The transfer case will remain engaged. This lever is not a Grenadier specific feature and is not recognised by IA. It exists primarily so ZF 8HP equipped vehicles can be moved without electrical power available. Pulling the lever down against spring tension will release the parking pawl and allow the drivetrain to rotate,
including the transfer case and transmission. The CDL should be unlocked to reduce drivetrain loads.
This action will allow the driver to do a rolling recovery (push, winch, recovery strap) of the vehicle to a more suitable location to get under the vehicle and operate the neutral stop screw before continuing with a recovery.
This method has limitations because it also requires access under the vehicle, albeit on the opposite side to the neutral stop screw, and the lever needs to be held down to prevent the transmission from returning to park while the vehicle is being moved. Remote pull cable kits exist and could be adapted to Grenadier at the owner's discretion.
2. Transfer Case mid-travel 'Neutral' Position.
A neutral position is not provided in the transfer case. An equivalent 'neutral' can be achieved by nudging the shifter into a position approximately mid-way between HI and LO range. The required position is not obvious and can take some practise to find. It is the least positive option available because the only confirmation of success is the wheels will rotate when the vehicle is moved. Nevertheless, this is by far the quickest method (after practice) and is most accessible to the driver. Once the vehicle has been moved to a more suitable location the neutral stop screw should be operated to continue recovery.
Notes.
- Unlock the centre differential.
- Ensure the transfer case selector lever is returned to HI range after the neutral stop screw has been operated.
- During recovery it is advisable not to operate the engine while the transfer case selector lever in any position other than HI or LO.
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