how do I replace a broken U-Joint on the front (4x4) drive shaft and put the now removed drive shaft back in -without going to a mechanic?

Asked by Sep 10, 2014 at 03:30 AM about the 1990 Ford Bronco Eddie Bauer 4WD

Question type: Maintenance & Repair

I have a 1990 full-size Eddie Bauer Bronco. This is my first 4x4. I put it in 4low and 4high one night and drove at about 3-5mph up my driveway and back,about 60 yds. had a heck of a time getting it out of low. Next day broke driveshaft (4x4) and cracked transfer case adapter. Found another cast iron adapter had mech put it in. Bought universal joint and rear trannie seal after removing driveshaft myself.Mechanic told me my driveshaft(u-joint) broke because I drove my truck in 4x4 on the pavement. Please advise me what to do. I am not a mechanic but am learning everyday what I can do myself -one of the main reasons I love older model vehicles.

1 Answer

38,245

I'm confused. The drive shaft and the U-joint are 2 different things. The U-joint hooks up to the drive shaft. Did both break? The fact that you drove in 4WD on dry pavement for such a short time should not have broken it. If you had different size tires on it could be the problem. Now if the drive shaft is bent and no good now, go to the junkyard and pull one from there. The dealer will be very expensive! Additionally, you should have the replacement drive shaft balanced.

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