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Arn's avatar
Arn
Explorer
Aug 26, 2020

Trunnion Lube?

Getting my trunnion WD hitch tomorrow & I'm wondering what to use for lube where the bars go into the hitch head. I have some 80w90 gear oil & if it's heavy enough I'll use that. Thanks.

8 Replies

  • Just a drop of motor oil on each contact spot on my Reese HP trunnion style. A drop on the top and bottom link of each chain keeps them quiet as well. When using my Equalizer 4-point, marine grease goes on the lube points. With either, any lube is better than no lube.
  • Bobbo wrote:
    Reese Hitch Ball Lube



    I used this as well for many years. Just went to Amsoil hitch grease due to a good deal when I bought my gear lube for the truck. Not sure I like it though and may go back to the Reese with teflon once the Amsoil stuff is done. The oil and grease are starting to separate a bit and makes for a bit of a mess.
  • I use wheel bearing grease on the ball so I guess I'll use it for trunnions too. Thanks all.
  • Gear lube is good for high-pressure applications, but any place it is used it is constantly re-applied. Plus, it stinks.
  • Arn wrote:
    Getting my trunnion WD hitch tomorrow & I'm wondering what to use for lube where the bars go into the hitch head. I have some 80w90 gear oil & if it's heavy enough I'll use that. Thanks.


    I use wheel bearing grease or hitch grease. Much heavier and less wear.

    Rob
  • you can use oil if you like I prefer a dab of wheel bearing grease on the mateing surfaces as well as the ball. most any brand will do. clean them up with mineral spirits and a rag now and then then re lube