Compression Ignition Addict
Join Date: Dec 2007
Thanked 253 Times in 244 Posts
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OK there are 1/2dz ways to check the connection between the TC and the tires. Did you try and lock the hubs and turn the driveshaft as I suggested above? (tires on the ground)
If both hubs are locked the driveshaft shouldn't be able to turn. If it does, you'll see one of the U-Joints turning. Jam a screwdriver in it (that hubs Not Locked) does the other U-Joint turn? If so, neither's locked.
If not, you have one locked and one unlocked. Look carefully at the unlocked one, maybe put it in the other position?
The best way to demonstrate the system is to put the TC in 4WD, lock both sides and jack-up one side at a time. With everything working you shouldn't be able to turn the tire because the rear tires can't be turned. Then, unlock that hub and it will spin free. Try the other side - same thing should happen.
Keep in mind though, it might take some wiggling back & forth to free or engage the hub at first as the internals slide on the greasy splines.
The hubs should be pretty easy to remove, clean, inspect, and regrease.