How to test locking hubs???????? - JeepForum.com
 
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post #1 of 15 Old 05-23-2011, 05:59 PM Thread Starter
truckshop21
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How to test locking hubs????????

So I was bored the other day and jacked up the front of my jeep and put the hubs in 4wd mode and spun the tires but the drive shaft didnt spin. Does this mean both hubs are bad or is something broken in axle?

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post #2 of 15 Old 05-23-2011, 06:05 PM
Fourtrail
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When you spun the tire, did the other one spin the opposite direction? You would need to hold one in place and spin the other to get the drive shaft to spin.

80 CJ-5, 74 CJ-6, 56 CJ-5
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post #3 of 15 Old 05-23-2011, 10:45 PM Thread Starter
truckshop21
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no the other tire didnt move
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post #4 of 15 Old 05-24-2011, 08:16 AM
scso81
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Put the front end on jack stands. (for safety) lock the t-case in 4x4. lock in both hubs. Spin the drivers tire. You should see the u-joint in the knuckle spinning. If if is not then it is not locked in. If it is you should see the other tire spinning. If if is not, check the u-joint in the passengers side knuckle and see if it is turning without the tire. If the passengers u-joint is turning but the tire is not, then the passengers tire is not locked in.
Let me know what happens.
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post #5 of 15 Old 05-24-2011, 08:39 AM Thread Starter
truckshop21
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awesome directions headed to my warehouse now let you know asap and thanks again
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post #6 of 15 Old 05-24-2011, 09:14 AM
lucdog
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Just to make sure the hubs are locked. Clockwise locks them, CCW to unlock. This is on the 6 bolt hubs. Fairly certain 5 bolt hubs are the same.
Bill

1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7
1989 YJ the CJ to YJ.
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post #7 of 15 Old 05-24-2011, 09:35 AM
scso81
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there should be marks on there to let you know if it is locked or not.
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post #8 of 15 Old 05-24-2011, 09:39 AM
scso81
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i have the 5 bolt (1983) hubs. It has a 2 and a 4 on it. I have to turn mine clockwise from the 2 to the 4 to lock them in. most manual hubs are the same.
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post #9 of 15 Old 05-24-2011, 11:13 AM Thread Starter
truckshop21
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Quote:
Originally Posted by scso81
Put the front end on jack stands. (for safety) lock the t-case in 4x4. lock in both hubs. Spin the drivers tire. You should see the u-joint in the knuckle spinning. If if is not then it is not locked in. If it is you should see the other tire spinning. If if is not, check the u-joint in the passengers side knuckle and see if it is turning without the tire. If the passengers u-joint is turning but the tire is not, then the passengers tire is not locked in.
Let me know what happens.
Alright both wheels spin when I followed your directions
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post #10 of 15 Old 05-24-2011, 11:15 AM
scso81
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so when you spin one wheel the other is spinning in the opposite direction?
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post #11 of 15 Old 05-24-2011, 11:37 AM
jumbojeepman
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Here's another method. Put the jeep in 4wd, engine off, transmission in gear. Jack up one front tire, lock in both front hubs. You shouldn't be able to turn the tire. If you can, something is wrong.
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post #12 of 15 Old 05-24-2011, 12:34 PM Thread Starter
truckshop21
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Quote:
Originally Posted by scso81 View Post
so when you spin one wheel the other is spinning in the opposite direction?
yup!!!!
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post #13 of 15 Old 05-24-2011, 02:57 PM
CJunk
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Or- don't jack it up or anything. Lock the hub, reach under and spin the axle ujoint by hand. If you can't move it, the hubs are locked.
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post #14 of 15 Old 05-24-2011, 08:59 PM
Cutlass327
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Or the fun way, lock in the hubs, put it 4wd on a gravel or dirt area, put the Trans in gear, and jump on it. See how many wheels are throwing dirt/mud/gravel

Rick

1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy

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post #15 of 15 Old 05-24-2011, 10:51 PM
lucdog
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Either what Cutlass said. or if the warehouse has a gravel lot, chain the jeep to something solid, 4 wheel low, lock the front hubs. if theres a weak link , you will find it, and if the brake are applied, just a little bi both front wheels may turn.

Bill

1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7
1989 YJ the CJ to YJ.
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