need more 4wd help?? - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 09-18-2010, 01:27 PM Thread Starter
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need more 4wd help??

I had posted a while back asking about transfer cases and front diffs. I have a bad, wrather violent front end, if i put the truck in 4wd. Like the wheels are square or the driveshaft is totally twisted. Thats the best i can describe it. I just took the transfer case out and took it in half to inspect. I replaced the output bearing and the needle bearings on the 4wd side. I also put in a chain that i know is good. The truck is fine in 2wd. No clunking etc. The main section of the transfer case is good(2wd part). I really thought i was going to find something when i took the tc apart. At first i thought front differential was bad but got to talking with people on here, and was thinking front bearing in the tc was bad. 4wd hi and low feel the same shaking. I am not driving in directions or turning feeling the usual 4wd bind. This is just 15 mph going straight. I am trying to get the 4wd to work before winter. The tc is simple, once it shifts to 4wd it slides the collar over 2 gears locking the shaft, therefore turning the chain. Real basic. I really am convinced, its not here in the tc. I guess, I have to start digging into the front diff. Not sure what else to look for? any ideas?

2008 6.4 f250 lariat 4wd
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post #2 of 4 Old 09-18-2010, 01:42 PM
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How is the front drive shaft?

2002 F-350 Crew Cab 4X4 Donahoe Lift kit, 38" Toyo open country mudd, AMP research Steps, 4.56 Gears, Mag Hytec Diffcover and Tranny Pan, Superchip, AFE Stage 2,Wicked Wheel, 4" exhaust turbo back.
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post #3 of 4 Old 09-18-2010, 02:36 PM Thread Starter
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I replaced the front u joint in it. The cardan joint seems good. Best of my knowledge its not bent. I spun it by hand and looked at it. It spins smooth.??

2008 6.4 f250 lariat 4wd
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post #4 of 4 Old 09-19-2010, 03:11 AM Thread Starter
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anyone, any ideas what to look for?

2008 6.4 f250 lariat 4wd
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