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How to Switch From Grease Hubs to Oil Bath Hubs on 3500-lbs Axle  

Updated 12/23/2020 | Published 12/20/2020

Question:

Wanting to convert my dexter 3500 5 on 4 1/2 axle to a oil bath hubs is this possible

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Expert Reply:

You can convert some hubs from grease to oil bath using a kit such as # XLPROLUBE1980KIT, which is designed for hubs with a 1.98" hub bore. This kit includes everything needed to make this conversion without actually swapping out the hubs or your existing bearings because it's got a cap that inserts into the hub bore. The cap bodies will push into the hub bore and feature threaded ends to which the actual oil caps will attach. However, if there is not a kit like this available for your hub bore size then it would not be possible without changing the hubs since most regular hubs are not threaded so you would not be able to screw on an oil cap.

If that kit won't work and your hubs aren't threaded, just tell me the inner and outer bearing numbers on your existing hubs I can determine if there is a way to replace them with an oil bath system.

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Erik B

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