Author Topic: Teflon coating on slip yoke splines peeling  (Read 1946 times)

Offline 1911fan

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Teflon coating on slip yoke splines peeling
« on: September 25, 2015, 07:09:05 PM »
I posted this on another forum,  but don't know how much overlap there is so was curious on everyone's opinion here. Pulled my rear driveline to work on the U-joints, noticed the slip yoke was dry and caused about 1/3rd of the splines to lose their teflon coating. The slip joint is still tight when assembled, but I have heard it is best to have the spline end replaced and re-balanced when you lose the coating. Is this truly the case? Or can I just lube it well? Local shop wants upward of $300 to replace the spline e

Offline Irish_Alley

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Re: Teflon coating on slip yoke splines peeling
« Reply #1 on: September 26, 2015, 08:15:29 AM »
i never knew there was a coating on the splines. always just see/use grease, i wouldnt worry about a teflon coating if they have grease on them
If you canít tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline 1911fan

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Re: Teflon coating on slip yoke splines peeling
« Reply #2 on: September 26, 2015, 07:06:02 PM »
I was told that without the Teflon that the fit gets sloppy and vibration will show itself.  Also that binding can occur, am hoping I can just run it.  Noticed all this when I had to pull my blown transfer case.
« Last Edit: September 26, 2015, 07:07:54 PM by 1911fan »

Offline Irish_Alley

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Re: Teflon coating on slip yoke splines peeling
« Reply #3 on: September 26, 2015, 10:46:54 PM »
makes sense in a way i mean dirt sticks to grease. but im sure ive seen grease zerk fittings on the female side
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Offline 1911fan

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Re: Teflon coating on slip yoke splines peeling
« Reply #4 on: September 29, 2015, 05:04:20 PM »
Well, took my drive line down to the local driveline shop. His opinion was I could pack it with grease and run it, but that it would most likely vibrate and cause damage to the slip yoke eventually. Also, since I just rebuilt my transfer case was concerned about undue stress on that. He recommended cutting off the stub end (splines) and welding in a new one. Price out the door is $350 for the cut and weld, new center bearing and shaft balance.  A lot higher than I was hoping, but what are you going to do.

Offline Irish_Alley

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Re: Teflon coating on slip yoke splines peeling
« Reply #5 on: September 29, 2015, 05:21:39 PM »
grease ;).
If you canít tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes