Question about 1990 Daihatsu Rocky

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Hub lock looking for a pair of hub locks

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Try this website: jcwhitney.com and the phone number is 1-800-865-4227

Posted on Jan 25, 2009

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Can't get my 95 Geo Trackers 4WD to work. The indicator light works still but the wheels themselves won't engage. Can anyone plz help me out with what might be my problem?


For Trackers (and Sidekicks) of this era (1989 to 1998) the front axle locking device is a locking hub on each front wheel. (There are no actuators until the model change in 1999.) Locking hubs come in two flavors, Manual and auto locking hubs. A look at the from wheel should tell you what you have. Manual hubs have a knob like lever with the word "lock" and "free." Auto hubs say "Auto-Locking" right on them. Both types of hubs require servicing periodicity. (Normally annually.) This means removing and disassembling. Then cleaning and light greasing before reassembling. There are some good videos on the web on how to service the manual hubs. Auto hubs are a little harder to ensure they are working properly, but some people like them. (Not me.)

Please note two things:
1. Due to differential action, BOTH hubs need to be locked for any power to be applied to the front wheels.
2. Trackers of this era are PART TIME 4x4, NOT all wheel drive. They have nothing providing for different wheel speeds front to back like a center differential. This means they should NOT be used on non-slippery surfaces like dry pavement. Beside causing handling and braking issues, it can destroy your transfercase driving on dry pavement in 4x4 due to what is called "driveline wind up".

PLEASE if you do not understand this, look it up... if you still do not understand, ask and do not use the 4x4 until you do.

Feb 18, 2015 | 1995 Geo Tracker

2 Answers

When i push in my landcruiser prado model 1994 4/4 button the hub is not locking what can i do ?


You may have a frozen cable to the actuator, or the actuator itself may be bad. Check also for vacuum leak(s). Peace. God bless.

Nov 26, 2014 | 1994 Toyota Land Cruiser

1 Answer

Truck will not go into 4 wheel drive. All fuses are good. Dash indicator lights will not come on.


you may need to replace the 4wd actuator. your hubs may be stuck in the lock out position. i would look to pricing the 4wd actuator first as it is less expensive than a pair of hubs.

Dec 27, 2010 | Ford F-250 Cars & Trucks

1 Answer

My 2004 f350 4x4 will not go in to 4wheel drive when the hub are in the auto position if i lock them it works. Looking for a repair manual Brad


vacumed line pull the hub lock in auto
check the line at selenoid (right side fender under hood)
for voltaged when in auto and for vacumed then follow line to hubs
check for cut or pinch or rubbed or burned
disconect at hub and test there for vacumed if yes
pull hubs off clean and inspect o-rings

Dec 17, 2010 | 2004 Ford F350

1 Answer

Everything in 4wd seems to work except the 4wd part :)


The locking front hubs are vacuum actuated. You need to inspect the vacuum supply to the hubs. I would provided a schematic of the system had you provide the vehicle year

Feb 25, 2010 | Mazda B4000 Cars & Trucks

1 Answer

Removing a 2000 Excursion hub to convert from auto ( vacuum) hub to manual locking hubs. There's supposed to be a lock ring holding on the cap/ cover that's remaovable with snap ring pliers, but don't see...


its not a snap ring in the sence that there are no holes for the pliers.use a small screw driver and something to hook it with. it sits inside the of where the hub slides in. after removing the hub might not easily come out. WD-40 and a large pair of channel locks may be required. by the way the hub itself is not vacuum operated. its engaged by a sprag unit that works when power is supplied by the axles rotating.

Nov 06, 2009 | 2000 Ford Expedition

1 Answer

4 wheel drive engages but hubs are not locking in


chances are that your one of your auto locks have when out on you you can replace them with the manual locking type if you dont mind getting out and locking the hubs in. and a plus to manual locks is that they are much much stronger

Apr 20, 2009 | 1998 Dodge Ram 1500 4WD

1 Answer

Front wheel bearings


If the hub is not bolted on then all you have to do is get a big pair of channel locks and get a good grip on the hub and pry it off. The wheel bearing will be directly under the hub and have a cotter pin installed in for safety. I hope this helps. Don,t forget to rate my answer, thanks.

Feb 28, 2009 | 1995 Toyota 4Runner

1 Answer

1997 isuzu rodeo 4x4 problem


Only the "S" model has the manual locking hubs.
Auto locking hubs look like normal center on a whel; only bigger. Manual locking hubs woul have and indent in the middle of hub and a raised ridge to grab with your finger to rotate the hub into the locked position. There should be some writting on the hub edge telling you which way to turn to lock and unlock.

Jan 28, 2009 | 1997 Isuzu Rodeo

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