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Old January 27th, 2007, 06:52 PM   #1
foxracingtrx250x
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91 bronco

Today I went to the mounds with some of my friends first for a lifted 91 bronco I just bought and I put it in 4x4 at the entrance it engaged but the front tires dont spin kind of of like a spider gear is broke which I hope its not. Can you tell me if theres something im doing wrong because I dont know much about my new 91 bronco
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Old January 27th, 2007, 07:13 PM   #2
jontboudrie
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bronco

try the lock outs r they auto or manual if one is messed up they won't work

good luck i have a set for 50.00 warns if needed . jon 734-755-6577
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Old January 27th, 2007, 07:43 PM   #3
bj house
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Diagnosed my brothers dakota like this. Put the both axles on jack stands get both front and rear wheels well off the ground. Start it engage four wheel drive put it in gear and let off the brake. Don't gas it much chain transfer cases don't like all of the slop and without the friction of the ground things like to clunk and bang.

So with your foot off the brake and your buddy watching teh front driveshaft does it spin? If so and you don't have manual lockouts your left with two things. The front ring and pinion or spider gears like you mentioned. If the front driveshaft and the front axle shafts are spinning but not the tires then maybe the auto hubs.

If the front driveshaft isn't spinning its your tcase chain or planetary gear set.

My brothers dakota smoked the front spiders once and the tcase planetary once.
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Old January 27th, 2007, 08:04 PM   #4
foxracingtrx250x
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Alright thanks ill try that tomorrow
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Old January 28th, 2007, 12:02 AM   #5
ddeadserious
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Quote:
Originally Posted by bj house View Post
Diagnosed my brothers dakota like this. Put the both axles on jack stands get both front and rear wheels well off the ground. Start it engage four wheel drive put it in gear and let off the brake. Don't gas it much chain transfer cases don't like all of the slop and without the friction of the ground things like to clunk and bang.

So with your foot off the brake and your buddy watching teh front driveshaft does it spin? If so and you don't have manual lockouts your left with two things. The front ring and pinion or spider gears like you mentioned. If the front driveshaft and the front axle shafts are spinning but not the tires then maybe the auto hubs.

If the front driveshaft isn't spinning its your tcase chain or planetary gear set.

My brothers dakota smoked the front spiders once and the tcase planetary once.

The front driveshaft is spinning, just nothing's happening in the front diff. & the hubs are automatic.

There were metal sparkles in the diff fluid when he stuck his finger in it.
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Old January 28th, 2007, 10:04 AM   #6
chris1044
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Alright, get under the truck with it on jack stands and in neutral, and spin the front drive shaft by hand. The axle shafts should be spinning (atleast one of them as it's got an open diff). If the axle shafts are not spinning, you've got

A) a smoked pinion/ring gear - you should hear some noise if this is the case...and its very hard to break this before something else

B) a broken axle shaft. If an axle shaft is broken up by the diff, then the power will get transfered to the broken shaft. Again, you may be able to hear some noise, and then again you might not - it depends on what side broke as only one is held in with a c clip - the other is simply slid in. I've never seen these axles break there though - they almost always break where the U joints are, or close to them....

C) possible that the splines on the pinion gear are smoked, allowing the drive shaft to spin over it - but that's highly unlikely.

If the axle shafts are spinning, then your hubs are more than likely bad if the wheels (or one of them) isn't spinning. If one of the wheels spins, have someone hold it stationary while you spin the drive shaft. The other wheel should spin as the power will be sent to it - if it doesnt then you've got a bad hub.......
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