Slip Yoke part #
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Fleet Mechanic
Joined: Nov 2000
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From: In my House
Slip Yoke part #
I have the dreaded slip yoke clunk, I used the FORD SPEC ptfe lube and it works for a while until the tranny fluid that makes its way onto the slip yoke dissolves it!! Does or has, anyone had any success with replacing the slip yoke with an updated one?
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Joined: Mar 2011
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From: MN
Same here. I'm going to replace the front slip yoke with a brand new. Re-greased it several times over the years and the clunk just comes back in a week or two. A Ford A-tech told me the trannys output shaft is hardened and the front drive shaft yoke isn't, so the output shaft wears out the front yoke splines. Installing a new one should get rid of the noise for a few years till it wears out again or at least greatly minimize the clunk. I can't imagine they clunked after they were sold new or people would have bitched. Replacing mine and installing 2 new "Spicer" u-joints, the double lip kind. The best they make. The drive shaft itself is separate. All that's needed is to remove the front u-joint from it and replace the part that slides into the tranny finishing with a newly installed u-joint.
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Fleet Mechanic
Joined: Nov 2000
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From: In my House
I am currently looking into a few places on the web that have the slip yokes for sale....One place told me around $60...not bad at all. the only thing is, my OEM one has a big round vib dampner ring around it, the new ones don't
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Joined: Mar 2011
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From: MN
I would stick with the OE design. Balance at that point of the driveline is critical. I will look for one from a Ford wholesaler on-line for savings "Silver State Ford".
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Joined: Mar 2011
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From: MN
I just got my new one delivered from Buy Ford Parts Online - Ford Parts Discount Outlet . for $87.50 plus shipping. #9L3Z4841B for my particular truck and VIN, with the OE dampener ring. Much cheaper that the local Ford dealer. Can't wait to install it and 2 new triple lip NEAPCO U-joints with greasable zerks. I'll bet my OE's are dry or darn near. I'll install a new rear transfer case seal to to ride on that new surface. I may have the whole shaft rebalanced/checked while it's at Driveline Specialists in town. I'll stop by the Ford dealer for the latest version of the special grease used on the splines. Maybe I'll pick up 1 mpg. That would be nice since gas just jumped nearly $0.50 a gal.in the last week or so.
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