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Go Back   ClassicBroncos.com Forums > 66-77 Ford Bronco > Bronco Tech

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Old 12/08/18, 05:39 PM   #1
pipeline010
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Front Driveshaft Time

Hey guys, back again for the 2nd time this week.

Finally pulled the front driveshaft. Unlike the rear, which needed the rear most ujoint repped, the fronts issue is at the cv. Pulling that apart made me realize I may as well just do them all in there.

The one that had failed (god knows when) literally had shattered sections of the bearing caps and two caps had no bearings at all.

As far as the cardan joint, it didnt look so hot but ok and some bearing pins fell out during removal. May as well rep.

Now to question - there's nothing special with this joint rep, right? I'm great at erector sets, so following disassemble old / reassemble new, right?

Ran into a couple posts that made me 2nd guess that strategy. Got a couple pics for state of the driveshaft and cv. Going to prep and POR the stiff parts while they're out (ie-not the sliding shaft).

Note - yes I marked the shaft ends and yokes for proper reassembly.

Thanks!
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Old 12/08/18, 05:49 PM   #2
B RON CO
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Hi, I usually run a brake cylinder hone through the yokes to clean them up and make assembly a little easier.
Good luck
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Old 12/08/18, 06:13 PM   #3
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Good tip, thanks Ron. So nothing special here, no trips to the driveshaft shop right?

I'm gonna rep all 3 ujoint and the 1 cardan joint.
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Old 12/08/18, 08:21 PM   #4
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and am I missing this rubber boot? (obviously missing it).

required piece?

https://www.dennysdriveshaft.com/p10...reaseable.html
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Old 12/09/18, 06:49 AM   #5
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pipeline010,
In what condition is the slip joint? Does it wobble a little bit? If it is good continue on with the rebuild, if not get another drive shaft.

74 EB, disc brake D44, ARB 9" 4.11, 351W, C4, Glass body, 2" Duff sl, 2" bl, 33" trxus STS radials.
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Old 12/09/18, 08:18 AM   #6
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Slip joint is good, no play at all.
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Old 12/09/18, 08:38 AM   #7
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You are "lucky"..that centering post on the end of the driveshaft looks to be in perfect condition; those are often buggered up real badly when run with u-joints completely gone.

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Old 12/09/18, 12:19 PM   #8
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Quote:
Originally Posted by bmc69 View Post
You are "lucky"..that centering post on the end of the driveshaft looks to be in perfect condition; those are often buggered up real badly when run with u-joints completely gone.
ya. PO mentioned the front shaft making a noise in 4wd when loading it on the car carrier. I haven't engaged the 4wd ever until the snow last week, and then just a 2 mile trip at low speed. noise confirmed so I took it off.

I don't know when it began to look like that, but I don't think it was actually driven on for any length of time after failure.

Last edited by pipeline010; 12/09/18 at 12:42 PM..
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