Question about 1983 GMC K1500

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Manual Locking hubs stuck

I have a 77 gmc k15 pickup with manual locking hubs. they lock in fine but when you get ready to unlock them they dont want to come out. I put the transmission in neutral but I amd stuck in 4w. I can eventually get it out rocking the truck hard forward and backing then shifting the truck back in nuetral however sometimes it takes awhile.

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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: transfer case /fuse/software for transmission?

thawed it out the next morning-reset codes to standard-viola-all is well. seems ice found its way into switch@transfer case and ran the chips riot-sending tranny into limp mode. cold weather,rrrrrrrrrrrr. june can't come soon enough.
thanks anyway

Posted on Jan 30, 2009

  • 23 Answers

SOURCE: 1986 GMC Jimmy 4WD problem

Rich. There is a vacumn engagement of the front differential. The switch is on the transfer case. There will be a vacumn motor(looks like a curise control unit if you're familiar with them) under the hood with a cable running to the front diff. Make sure it functions when you engage 4wd. Probably does. If not, make sure it is getting vacumn by removing the line. It should **** on your finger when covered. If this all works properly, you could have trouble in the front diff. Don't forget the simple stuff, like CV joints, axle nuts tight, etc. You're driving an 86 so I assume you have a little experience in maintaince. Good luck. TJ

Posted on Oct 18, 2009

  • 37 Answers

SOURCE: truck drives forward but will not reverse

Maybe it was not repaired correctly maybe the lip seals on the low/reverse piston is cut and reverse doesnt work. Should have went to www.TransmissionGarage.com

Posted on Dec 30, 2009

  • 27 Answers

SOURCE: 2000 GMC SIERRA SHIFTS HARD AFTER WARMUP.

Scan for any transmission codes If none are present, change the filter.

Posted on Mar 20, 2010

  • 82 Answers

SOURCE: 2005 GMC Envoy key is stuck in accessory position

Jump starting the battery may be all you need. If this vehicle was not in park when the battery went dead and when you got in to start it it was dead. You then probably put it into park trying to start it.
But the issue at this time is if it was in neutral when the battery went dead the you changing the selector to park may not actually have placed the transmission in park. With electronic gear selection it actually need power to the system to place the transmission in park.
Without it really being in park the key may move to the lock position.
A bit of quess work here but I hope for you I hit the mark.

Posted on May 20, 2010

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1 Answer

On a 1994 Nissan D21, do I need some type of conversion kit or something to change automatic locking hubs to manual? Or do I just buy the manual locking hubs?


Im a locking hub kind of a guy my self and have ownned 4x4 Nissans .
But I have never heard going from electroinicly locking hubs to manaul lock .
I remember a recall with the locking hub inner bearing seal issue that seized the hub shaft to the inner bushing but the bearings wore huge and didn't effect them .
Unless you know something I don't I don't think this can be done

Mar 31, 2015 | Nissan Cars & Trucks

1 Answer

1995 GMC Sonoma will not switch back out of 4 high?


Are the front hubs still locked in?

If you have manually locking front hubs, you probably have a bit of binding in the drive train due to the front wheels being locked to the drive system

After unlocking the hubs, back up about 20 feet, then back forward about 20 feet.....see then if the transfer case can then be disengaged. You MAY need to just yank on the transfer case shifter while the vehicle is moving (slowly of course).....

I had an older ford pickup which did the same thing.....disengaging the hubs and just yanking the shifter had disengaged the 4 wheel drive then I was able to put it back into 2wh high.

Feb 28, 2011 | 1995 GMC Sonoma

2 Answers

Front drive shaft not fully engaged in 4WD, with truck on stands all 4 wheels do rotate but if i stop front wheels the front drive shaft is not engaged


Hi,
Do you have auto locking hubs on the front wheels, or manual locking hubs?
If you have auto locking hubs chances are they are not engaging properly and will need to be removed and spline sets checked for broken teeth on locking hub and locking shaft.
If you have manual locking hubs then check that they are firm when turning to engage them in the lock position.If they are light when engaging them to the lock position then they my have broken/worn out the locking hub and spline. Also check that the engaging spring inside the hub has enough tension to engage the hubs they may be broken. If the hub are all ok then you have a problem in the transfer box, where the 4WD lever is not meshing the transfer box properly. Hope this helps, let me know how you get on.

Jason

Apr 04, 2010 | 2002 GMC Sierra C/K1500

1 Answer

When selecting 4 wheel drive my locking wheel hubs dont seem to be locking.I have drive to the wheels as the drive shafts can be seen turning when the vehicle is raised off the ground.Are the automatic...


The auto locking hubs are sort of a weak link. Many replace them with manual locking hubs, which last basically forever. Here is a set of instructions:
http://npora.ipbhost.com/index.php?showtopic=1405

Jan 11, 2010 | 1994 Nissan Pathfinder

1 Answer

I have a 1997 gmc pickup with 4-wheel drive. The


You probably have blown drive hubs. Do you have to engage the hubs at the wheels? If not and they are automatic locking and they are probably blown or seized into the unlock position. They are not too expensive to replace with manual locking hubs (My Suggestion) but the autolocking hubs are expensive. When you take the caps off the front drive spindles and try running it again you may see the axle turning inside but not the wheel. That is the best test. Wish you luck!!

Jan 05, 2010 | 1997 GMC Sierra K2500

1 Answer

Different 4wd settings


you should have 2 hi 4 low 4 hi and nuetral on your transfer case 4 hi would be anything up to 35-40mph or lower 4 low is almost never used it just gears down your t case if your climbing a hill or super stuck the manual locing hubs are extremely reliable do not have them locked on dry pavement or concrete just loose dirt snow ice ect put the tranny gear shifter in nuetral to put your t case in 4 low

Oct 05, 2009 | 1989 Toyota Pickup SR5

1 Answer

4 wheel drive engages but hubs are not locking in


chances are that your one of your auto locks have when out on you you can replace them with the manual locking type if you dont mind getting out and locking the hubs in. and a plus to manual locks is that they are much much stronger

Apr 20, 2009 | 1998 Dodge Ram 1500 4WD

1 Answer

4x4 Manual locking hub stuck in "lock"


What I have done in the past when manual locking hubs were difficult, is have a friend get in the vehicle and slowly roll backwards while I attempted to unlock the hub.

Feb 22, 2009 | 1995 Suzuki Sidekick

1 Answer

1997 isuzu rodeo 4x4 problem


Only the "S" model has the manual locking hubs.
Auto locking hubs look like normal center on a whel; only bigger. Manual locking hubs woul have and indent in the middle of hub and a raised ridge to grab with your finger to rotate the hub into the locked position. There should be some writting on the hub edge telling you which way to turn to lock and unlock.

Jan 28, 2009 | 1997 Isuzu Rodeo

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