Is this a Vacuum knob for a locker? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General Technical Discussions > Engines & Drivetrain > Is this a Vacuum knob for a locker?

Engo winches available at www.rockridge4wd.com! Free shippSwag Off Road BIG-HIT TJ-YJ Rear BumperCyber Sale on RUBICON EXPRESS - Short Arms, Long Arms, Tra

Reply
Unread 06-22-2012, 09:00 AM   #1
simspace
Registered User
1994 YJ Wrangler 
 
Join Date: Dec 2011
Location: Franklin, TN
Posts: 36
Is this a Vacuum knob for a locker?

I picked up my first Jeep which need work.

Can anyone tell me if this is this a vacuum knob for a locker and how does it work?

Thanks,
Chris

image-1818878046.jpg

simspace is offline   Reply With Quote
Unread 06-22-2012, 09:08 AM   #2
simspace
Registered User
1994 YJ Wrangler 
 
Join Date: Dec 2011
Location: Franklin, TN
Posts: 36
I ask this because something is still engaging the front axle. I need to replace the two front U-Joints because they are clanking when I drive. My 4 wheel drive is not engaged so I assume the hubs should not be turning but they are. And this knob seems to have something to do with that. When I turn it all the way counter- clockwise the u-joint clanking seems to stop. But then I have some other awful noise when I turn the steering sharp right.
simspace is offline   Reply With Quote
Unread 07-04-2012, 09:22 AM   #3
tslroper
Registered User
1990 YJ Wrangler 
 
Join Date: Aug 2010
Location: New Mexico
Posts: 380
That *looks* like a posi-lok for your front axle. It replaces the vacuum actuated central axle disconnect. When you shift into 4wd you would need to pull out on that to lock the two piece passenger side front axle together. It does not function as a locker.
__________________
1990 YJ Islander, 4.2L MC2100 DUI HEI, 2.5" RE lift, 31x10.50 DuraTracs, HandenFab rear bumper / swing-out, Tough Terrain
off-road camp trailer.
Build thread: http://www.jeepforum.com/forum/f22/tys-yj-build-1502554/
tslroper is offline   Reply With Quote
Unread 07-04-2012, 09:29 AM   #4
simspace
Registered User
1994 YJ Wrangler 
 
Join Date: Dec 2011
Location: Franklin, TN
Posts: 36
Ahhh... Okay. Thank you. That helps!
simspace is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.