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Rear Wheels locking in 4x4

Steve O

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Steve O New Member

Steve O

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Hi, Just got this truck today. It is a 97 Z-71 Push button engage 4x4. When I put in 4x4 the rear wheels bind after rolling about 4 of 5 feet. I tried this is a gravel parking lot and rear wheels do not completly lock but they, I think the term is crow hop ? It has large tires ( 315-70r-15 ) they are new and matching. And also 4" body lift. It does this while rolling in a stright line, 4hi or 4lo. I did notice some red fluid on under carrige where rear shaft enters case. Not much. Have not had time to check fluid. Would out of fluid cause this ? If case has to come off , is this a big job ? About how much time ? Any help appriciated !!!! Thanks Again. Steve

6.slow Enthusiast

6.slow

Posted
Posted
Hi, Just got this truck today. It is a 97 Z-71 Push button engage 4x4. When I put in 4x4 the rear wheels bind after rolling about 4 of 5 feet. I tried this is a gravel parking lot and rear wheels do not completly lock but they, I think the term is crow hop ? It has large tires ( 315-70r-15 ) they are new and matching. And also 4" body lift. It does this while rolling in a stright line, 4hi or 4lo. I did notice some red fluid on under carrige where rear shaft enters case. Not much. Have not had time to check fluid. Would out of fluid cause this ? If case has to come off , is this a big job ? About how much time ? Any help appriciated !!!!  Thanks Again. Steve

 

 

 

Them tires shouldn't be doing that in a straight line!!! Might be a dumb question, but are you sure the front and rear gears match?

RyanZ71 Senior Enthusiast

RyanZ71

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Just a question, I don't think our trucks are equipped with full time 4WD unless we have lockers on them? Usually when you put it in 4WD, it will have the right rear tire spinning and the left front tire spinning? Yes? no? Thats the way it works on most 4WD systems without lockers... Most people think that if it says 4WD it means all 4 wheels will be spinning....

Steve O New Member

Steve O

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Well not sure of what size gears but when we tried it in the gravel both front wheels would spin. Not sure of what that means. Thanks for the help!!!!

6.slow Enthusiast

6.slow

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Okay, I'd try this here, put the truck on a lift, or up on jackstands. Mark all the tires in one spot, with tape, a tire crayon or something. Put it in 4-lo and count the revolutions of each axle. Hell, I suppose you could do the same in the gravel parking lot, but I'd try not to encourage this binding. I think them gears don't match. But, I've been wrong before. God, how I've been wrong....

 

Good luck, let us know.

Steve O New Member

Steve O

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Thanks for the help. After futher investigation, I have found the trans case fluid to be low. Not sure if that would cause this, but will try filling tomorrow. Will keep posted. Thnaks Steve

RyanZ71 Senior Enthusiast

RyanZ71

Posted
Posted
Thanks for the help. After futher investigation, I have found the trans case fluid to be low. Not sure if that would cause this, but will try filling tomorrow. Will keep posted.  Thnaks  Steve

 

 

 

 

Rear output shaft seal is leaking, very common. I found out the hard way when I went to change the fluid and only got half of a cup of the stuff out of the transfer case.

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