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sierra feels like its locking up ??
https://www.auszookers.com/forum/viewtopic.php?f=5&t=36892
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Author:  rob45x [ Mon Nov 05, 2012 6:57 pm ]
Post subject:  sierra feels like its locking up ??

Hey guys. The first time ive checked my sierra into 4H today and locked the front hubs in. But when i make a turn the wheels start locking up and gets tight/jammed. Now i know what lockers are etc and how diffs work but im unfamiliar with 4wd mode as ive never used it.

Any help or ideas/ is this normal when in 4wd mode?

cheers in advance!

Author:  reeceh [ Mon Nov 05, 2012 6:59 pm ]
Post subject:  Re: sierra feels like its locking up ??

Are you fully engaging the hubs?

Author:  SierraDan [ Mon Nov 05, 2012 6:59 pm ]
Post subject:  Re: sierra feels like its locking up ??

on tar?

Author:  rob45x [ Mon Nov 05, 2012 7:01 pm ]
Post subject:  Re: sierra feels like its locking up ??

yes the hubs are fully engaging and yes on tar

Author:  atari4x4 [ Mon Nov 05, 2012 7:06 pm ]
Post subject:  Re: sierra feels like its locking up ??

not a good idea using 4wd on high traction surfaces

Author:  rob45x [ Mon Nov 05, 2012 7:08 pm ]
Post subject:  Re: sierra feels like its locking up ??

ok. so i stuffed up lol. wont happen again

Author:  JrZook [ Mon Nov 05, 2012 7:09 pm ]
Post subject:  Re: sierra feels like its locking up ??

ON tar ouch!!! What you are experiencing is wind-up. Not good for any of the drive train! 4x4 is only to be used on low traction surfaces where the tires will slip, not tar!

Author:  rob45x [ Mon Nov 05, 2012 7:13 pm ]
Post subject:  Re: sierra feels like its locking up ??

geez lucky i didnt break anything.
Its just that i have a slight growling noise coming from underneath backing off and on accelerator and thought it might be the rear diff. So i disconnected the rear tail shaft and drove it home on the front diff in 4wd mode. But massive vibration when i done that. so pulled over and slipped the rear shaft back on. No vibration in 4wd.

really lucky i didnt stuff anything

Author:  Zook_Fan [ Mon Nov 05, 2012 8:42 pm ]
Post subject:  Re: sierra feels like its locking up ??

You shouldn't have any vibrations running with the rear shaft out and in 4H. It sounds like you have other problems as well

Author:  rob45x [ Mon Nov 05, 2012 8:48 pm ]
Post subject:  Re: sierra feels like its locking up ??

yeah it was weird. didnt think it should make a difference if i have the rear shaft in or out in 4wd.

Author:  atari4x4 [ Mon Nov 05, 2012 9:11 pm ]
Post subject:  Re: sierra feels like its locking up ??

jack shaft uni's

Author:  rob45x [ Mon Nov 05, 2012 9:17 pm ]
Post subject:  Re: sierra feels like its locking up ??

but the jack shaft is always spinning whether the front or rear shaft is in

Author:  JrZook [ Mon Nov 05, 2012 10:53 pm ]
Post subject:  Re: sierra feels like its locking up ??

Front shaft unis. Probs haven't been used for a while and are stiff/semi seized

Author:  Zook_Fan [ Mon Nov 05, 2012 10:54 pm ]
Post subject:  Re: sierra feels like its locking up ??

Did you disengage the hubs when you put the rear shaft back in?

Author:  rob45x [ Tue Nov 06, 2012 5:14 am ]
Post subject:  Re: sierra feels like its locking up ??

At first I left them engaged. And drove it in 4wd with no vibration

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