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post #1 of 4 Old 09-17-2013, 05:25 PM Thread Starter
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bad output shaft?

Hey guys, I have a small issue with my 08 350. When coming to a complete stop, I can feel a strange clunk, like the rear end is sloppy. When taking off I feel the same clunk. I opened up the rear end to find no real issues,there was some play but nothing excessive. Worked my way up the driveshaft, nothing loose there. Once I got to the tranny I noticed this is where the play was coming from. I can turn the drive shaft a good half inch back and forth, which leads me to think my problem is originating from the output shaft. Is this a common problem? The truck was used for plowing before I bought it. Is there anything I may be over looking?

2008 6.4 stroker, Spartan, MBRP 5", S&B cold air, RCD EGR delete
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post #2 of 4 Old 09-18-2013, 06:19 AM
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Drop the driveshaft and grease the slip yolk. If it has no grease it will cause a clunk on take off. Mine did the same thing.

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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post #3 of 4 Old 09-18-2013, 12:40 PM Thread Starter
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I'll give that a try. Thanks

2008 6.4 stroker, Spartan, MBRP 5", S&B cold air, RCD EGR delete
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post #4 of 4 Old 09-18-2013, 12:45 PM
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Yea an honestly that should fix it. If possible use the motorcraft stuff in the link below. I doubt your output shaft is broken. I would think the input shaft would break way before the output shaft would.

http://www.amazon.com/Genuine-Ford-Fluid-XG-8-Lubricant/dp/B000NU77DA/?tag=5336116737-20

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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