New to forum
FTE Leadership Emeritus
Joined: Jul 2008
Posts: 111,873
Likes: 153
From: Wharton, NJ
They are manual to lock, but you have auto vacuum actuators built in, it's a fail safe that you can get them into 4X4 if needed, some of us opted to replace the factory ESOF (Electronic Shift on the Fly) as they are called for true manual locking hubs.
If you can manually turn them then they are working,
There is plenty of reading when it comes to the hubs.
Here is a service link if you plan on keeping them factory, they also have pictures of the hubs face for position reference.
Welcome to guzzle's 4x4 Autolock Hub Lubrication Maintenance Web Page
If you can manually turn them then they are working,
There is plenty of reading when it comes to the hubs.
Here is a service link if you plan on keeping them factory, they also have pictures of the hubs face for position reference.
Welcome to guzzle's 4x4 Autolock Hub Lubrication Maintenance Web Page
Thread Starter
|
New User
Joined: Sep 2010
Posts: 13
Likes: 0
They are manual to lock, but you have auto vacuum actuators built in, it's a fail safe that you can get them into 4X4 if needed, some of us opted to replace the factory ESOF (Electronic Shift on the Fly) as they are called for true manual locking hubs.
If you can manually turn them then they are working,
There is plenty of reading when it comes to the hubs.
Here is a service link if you plan on keeping them factory, they also have pictures of the hubs face for position reference.
Welcome to guzzle's 4x4 Autolock Hub Lubrication Maintenance Web Page
If you can manually turn them then they are working,
There is plenty of reading when it comes to the hubs.
Here is a service link if you plan on keeping them factory, they also have pictures of the hubs face for position reference.
Welcome to guzzle's 4x4 Autolock Hub Lubrication Maintenance Web Page
Thanks. So if I understand this correctly I can either manually engage the hubs or just allow the vacuum system to engage them for me? I prefer the manual myself. I also prefer the 4x4 shifter in the floor instead of the push button or selector switch..lol
More Turbo
Joined: Jan 2009
Posts: 530
Likes: 2
From: LI, NY
Welcome to FTE !
Back to your knock... Check for leaks at the heads to exhaust manifolds - a minor leak can go away as the manifold expands as it heats up. Look for broken manifold bolts and black discoloration (sign of leakage). Use a 3' length of 1" hose as a stethescope.
I think there were some variations, but most hubs are auto or locked. Turn CCW for auto, CW for lock. To test, turn to lock, then try to turn the front axle shafts. They should be locked (or lock as you turn). Then turn to auto, the shafts should be free. Leave in the auto setting.
4WD can take some movement before it engages, follow the owner's manual exactly.
Back to your knock... Check for leaks at the heads to exhaust manifolds - a minor leak can go away as the manifold expands as it heats up. Look for broken manifold bolts and black discoloration (sign of leakage). Use a 3' length of 1" hose as a stethescope.
I think there were some variations, but most hubs are auto or locked. Turn CCW for auto, CW for lock. To test, turn to lock, then try to turn the front axle shafts. They should be locked (or lock as you turn). Then turn to auto, the shafts should be free. Leave in the auto setting.
4WD can take some movement before it engages, follow the owner's manual exactly.
Thread
Thread Starter
Forum
Replies
Last Post
