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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 09-10-2008
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Vibration...

Heres the truck info:

2002 Ranger Supercab 4dr 4.0 SOHC, 5spd manual, 104,000 miles.

I just put a brand new OE ford clutch kit & slave cyl. in the truck. I now have a vibration at anything faster than 55mph. Wasn't there before I did the clutch. I used the alignment tool that came with the kit and everything went together very slick...in fact was the easiest clutch I have ever done.

I originally thought maybe the driveshaft had to be oriented a certain way and I should have marked the flanges where the driveshaft mounts both at the rear end and transfer case...but if these driveshafts balanced out of the truck then it shouldn't make a difference which bolt holes are used in the shaft vs. the rear end & tranny.

I then thought maybe the flywheel in the engine was the source as I did not get a new one or get it re-surfaced, I just took a scotch brite pad and took the glaze off it. But....when going 65-70 MPH and you take it out of gear and let it idle, or put it in a different gear it doesn't change anything so I don't think the flywheel is the source.

Any ideas???
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Old 09-10-2008
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U joint?
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Old 09-10-2008
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I don't think removing and replacing the drive shaft could have screwed up a u-joint...like I said, it didn't do this before I put the new clutch kit in. The one thing I didn't do is remove the front drive shaft from the transfer case...I just disconnected it from the front axle and left it hanging from the transfer case. I may have damaged it but I think its unlikely. Can you remove the front shaft in this truck without losing fluid out of the transfer case?
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Old 09-11-2008
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Double check where the bell housing meets the engine block.
Look for a wire or hose that may have gotten caught in between the two or an open seam where they are not quite together . A piece of dirt or something may be preventing the trans to sit square against the block.
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