How Does The EZ Lube Spindle # TRU74FR Work On A Boat Trailer

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Question:

I recently bought a used boat trailer.I believe the spindles are the #TRU74FR.There is a hole,in the center, on the inside end of the spindle. When you add grease from the outside fitting, it comes out of this hole. Is there supposed to be a grease fitting in the inside end of the spindle?

asked by: Ed A

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Expert Reply:

On the EZ Lube Spindle # TRU74FR you do not need a grease fitting for the hole on the inside end of the spindle. This is an EZ lube spindle which is designed to allow you to put grease onto the bearings by using the zerk fitting on the threaded end of the spindle. You will not want to block the hole that is on the inside end of the spindle.

When the hub is installed on the EZ lube spindle it will form a cavity around the wheel bearings and when you pump grease into the spindle through the zerk fitting it will fill the cavity with grease and allow the bearings to be greased and will keep water from getting to the bearings.

I would also recommend the EZ Lube Grease Cap # RG04-040 to go with the EZ lube spindle. This grease cap will have a removable plug that will allow you easy access to the EZ lube fitting on your spindle.

Also, I am sending a video link to a demonstration of how to repack trailer hub bearings. It will show the EZ lube spindle and it describes how it works.

expert reply by: Jeff D

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Answer 1

Thanks for the pictures. It looks like your zerk fitting has broken off. You should have a standard 1/4" grease zerk fitting if you have EZ Lube spindles. You would be able to replace it with the Grease Zerk for Ram Jacks item #Gzerk.

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Answer 2

An EZ lube spindle will be better because it allows you to insert grease from inside the spindle where the bearings are and push out the old grease whereas with a Bearing Buddy you basically just get to push grease through the front of the hub. I…

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Answer 3

Either way is correct. It depends on if you want to keep the semi-style 7-Way (if you need to tow that type of trailer) or if you will never be towing a semi-trailer. If you need to keep the 7-Way semi active on the truck, then you would need to…

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Answer 4

I confirmed with my contact at Dexter Axle that the grease zerk used in their EZ Lube spindles like #TRU74FR is a standard 1/4-inch pipe thread fitting that you can replace with an item like #Gzerk. Your local hardware store may have one too. You…

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Answer 5

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and…

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Answer 6

The 'sleeve' or shank portion of the Fulton #F500266 caster assembly is meant to be compatible with Fulton F2 trailer jacks, which is why it's kind of oddly shaped. At the widest point, that sleeve is 2-1/2 inches in diameter,…

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Answer 7

Hey Antoine, so the two kits you mentioned are actually really similar and honestly I would go with the part #ETBC7 if I were you. The #ETBC7L is basically the same thing minus a couple wires and breakers so you may as well get the kit that has…

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How Does The EZ Lube Spindle # TRU74FR Work On A Boat Trailer

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