Pre-1997 Models

Clunk in rear end

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Old Mar 16, 2003 | 08:23 PM
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Clunk in rear end

93 F-150 with limited slip. I have a loud clunk or snap when making right and left turns, also backing up. Now this noise comes and goes, not clunks all the time. Replaced two speed sensors thinking the snap blows them out. Checked gears and everything looks good, changed oil and additive. Lost !!
 
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Old Mar 16, 2003 | 09:23 PM
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MAybe the LS needs to be rebuilt. I know the clutches go bad after a while, but I do not know the symptoms.
 
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Old Mar 17, 2003 | 12:06 AM
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Had something similar, checkt he rear leaf springs, the 4 bolts on the driver side leafs come loose causing it to do that on mine.
 
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Old Mar 17, 2003 | 12:27 AM
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You know, I just started noticing some shuddering when I'm turning. I might be do for a re-torquing of my suspension or my LS could be going bad as well. I know about a year ago when my friend did a burnout in my truck (I don't usually like to abuse my tranny like that but my friend doesn't seem to care) I noticed only one tire was spinning. So I'm sure my clutch must be going out, but I don't know if that's what's causing the shuddering or not. One more thing to check out I guess.
 
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Old Mar 17, 2003 | 08:00 AM
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My snap, pop, clunk come from the front end in a hard turn
 
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Old Mar 17, 2003 | 05:13 PM
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If it was my truck i would jack the rear end up and support with jack stands. they pull the on the tires to see how much axl endplay you have. before i rebuilt my rearend this summer i had about 5/8'' end play on each axl.

i did a complete rebuild of my rear end this summer for around a 100 dollars, if you know how to set up gears it is easy to do. i had a bad pinion bearing, and i think it was not set up correctly from the factory(way to much slop)
 
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Old Mar 19, 2003 | 10:47 PM
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About a year ago I had a clunking sound/feel with my 1993 F150 at the rear end.
I found the bushings and bolts in the forward end of my leaf springs were shot.
I pulled the springs, took them to a spring shop, and had them press in new bushings. I also had them re-arch the springs.
Reinstalled and the problem was solved.
I also had them add a leaf and the rear end is much firmer now.

You could pull one of the bolts and check it for wear. Mine had large grooves worn into them from the slop in the bushings.
 
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Old Mar 20, 2003 | 12:30 AM
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another common source of a jarring 'clunk' on startup from a stop is a worn spline in the slipjoint in the driveshaft. My '86 F150 does it every so often, I live with it
 
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Old Mar 22, 2003 | 09:20 PM
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Originally posted by mxhotshot
If it was my truck i would jack the rear end up and support with jack stands. they pull the on the tires to see how much axl endplay you have. before i rebuilt my rearend this summer i had about 5/8'' end play on each axl.

i did a complete rebuild of my rear end this summer for around a 100 dollars, if you know how to set up gears it is easy to do. i had a bad pinion bearing, and i think it was not set up correctly from the factory(way to much slop)
Have some end play, maybe less 1/4". How hard to rebuild Limited Slip assy?
 
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Old Mar 22, 2003 | 09:28 PM
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Have some end play, about 1/4". How hard to rebuild Limited Slip Assy?
 
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