Clunk when I start off in forward and reverse - Defender Source
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  #1  
Old April 17th, 2014, 04:27 PM
richord
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Richard Ordowich
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Clunk when I start off in forward and reverse

I hear a loud clunk when I start off in off first gear and reverse. I went under the truck and I can turn the front drive shaft about 1" in either direction by hand. The rear drive shaft doesn't turn at all by hand.

Is this amount of play in the front drive shaft normal? If not what is the likely problem?
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  #2  
Old April 21st, 2014, 03:22 PM
chuckc4
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chuck b
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Do the U Joints on the drive shafts look like they are loose or broken?
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Old April 21st, 2014, 03:32 PM
richord
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Richard Ordowich
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I tried to check for looseness in the U joints but they look tight with no play on both driveshaft's.

I was looking for some advice on how to check for play in the drivelines. I haven't been able to pin point the origin but it appears to come from the back. Could it be the differential, axles? What's the best way to check for wear?
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  #4  
Old April 21st, 2014, 03:36 PM
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Rocky
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Chris
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Answer A: Its normal.
Answer B: Get into the habit of dropping out of gear just before you come to a halt. Selecting R or 1 after that will result is an almost silent change of direction.
Answer C: Add grease to the UJs.
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A friend of mine runs a land rover / range rover specialty repair shop. Based on his experience, they are capable of stopping anywhere, anytime, at any cost.

I don't know about the brakes, only their unreliability.
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  #5  
Old April 21st, 2014, 03:38 PM
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sonoronos
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Ed
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Occurred to me before my rebuild and stopped afterwards. The slop in the drivetrain was not related for me.

Things i fixed: new bolts for rear a arm mounts, new rear trailing arm bushings, new rear brake pads, new rear wheel bearings. New rear shock bushings
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  #6  
Old April 22nd, 2014, 06:56 AM
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J. Michael McCaig
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Check for worn splines in the front hubs, as they wear they can create driveline slop. If the "clunk" is coming from the rear, check for play in the rear ball joint over top of the rear axle.
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  #7  
Old April 22nd, 2014, 11:05 AM
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Viton
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Try heavier weight gear oil in diffs
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  #8  
Old April 22nd, 2014, 11:11 AM
RickM
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Rick Mabus
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I was getting some odd noises myself. Took the rear drive shaft off and it was way worse. I then checked the ebrake drum and the screw holding it all together was insanely loose. Put some loctite on it and put it all back together and all is good. With the ebrake on your drive shaft in the rear will not have any play, I think.

Anyway, I also second putting thicker fluids in the T-Case and Diffs.
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