 | Home > Maintenance & Modifications > Replacing grease nipple in situ? |
 
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| Johan_B Member Since: 20 Sep 2024 Location: Gothenburg Posts: 100   
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As I examined this UJ more closely today I felt a small play so it needs to be replaced anyway. Will order part during the weekend but the question is, do I keep the prop on the truck during the week or should I remove it and go in 2WD? I’ve no idea for how long it has been like this.
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7th Jun 2025 8:27pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20870 
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So long as you aren’t going through lots of water, in particular deep water, I’d leave it.
You can go 2WD with diff locked if you wanted to of course though. _\Hennessey|Venom| F5/___ ___\⭐️Lone|Star|State/___ ____\We|Will|Win/___ ____/🇬🇧🇺🇸\____ _//*⛽️🛢️⚙️🧰*\\_ |
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8th Jun 2025 1:20pm |
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| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5942 
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Stay with prop attached. You be surprised how bad/noisy the drive is on a single prop.
I fitted a brand new UJ to a mates prop the other week. The quality was so good the nipple came out the UJ and we hadn’t even fitted it to the vehicle yet 😂😂😂 No quality parts were used 🤯🤯🤯 |
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8th Jun 2025 3:44pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2397
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I’m 99.9 % certain the prop nipples are a 1/4 UNF thread. If I’m correct an M6 can be used, but it will recut the thread. Ps - cheap nipples can fail / be a real PITA to use, so get good quality ones not cheap Chinese rip offs  |
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8th Jun 2025 6:08pm |
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| Johan_B Member Since: 20 Sep 2024 Location: Gothenburg Posts: 100
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So, I did the job last night. It was not as easy as the video above made it out to be. Re-watching the video now, I realize I didn't do it as suggested. I used the vise and sockets to push the cups through until I could grip the protruding cup. If the cups are cylindrical, which I assumed, this would not cause any harm, but if they are conical I might have done something stupid. Anyone knows?
Also when I could grip the cup with the vise, it was ridiculously hard to move and even hard to grip it enough to not just turn in the vise. In retrospect I should have cleaned the cups and lubricated them before I did this. But anyway, I doubt I would have had any luck by just using a hammer. Assembly was easier but the joint was very stiff when finished. I could move it and there was no harshness but it took a lot of force. Is that normal for a new joint? Refitting the prop in the vehicle I forgot to clean the mating surfaces. On the output flange there was a tiny amount of oil, can this effect the performance of the joint? Do I need to take it out again and re do it? Sorry for all the questions but having seen what a failed UJ can do I am a bit nervous. The car drives well, less noise and vibrations then before and another bit of slack in the driveline has been removed. |
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12th Jun 2025 9:36am |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20870
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It’ll bed in.
 _\Hennessey|Venom| F5/___
___\⭐️Lone|Star|State/___ ____\We|Will|Win/___ ____/🇬🇧🇺🇸\____ _//*⛽️🛢️⚙️🧰*\\_ |
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12th Jun 2025 6:01pm |
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