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Electric Trailer Brake Maintenance Tips (And When to Upgrade)

How to Inspect Your Towable RV Axles, Brakes & Suspension

General FAQs

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The E-Z Lube option was designed specifically for the marine application where the axles are constantly being immersed in water. This feature provides a convenient method for purging the water from the hub cavity without having to pull the hub every time. The hubs should be removed every 12 months or 12,000 miles to inspect the bearings and it is imperative to replace the seal at this time to assure that the grease does not leak out the back onto the brake linings rendering the brakes non-functional.
No, the E-Z Lube option requires a specially controlled machining operation to drill the holes in the spindles to provide the grease path from the end of the spindle to the inner bearing.
Aluminum wheels are thicker through the mounting bolt area and may not leave enough stud length for proper nut engagement. Consult the wheel manufacturer for stud length and mounting face requirements and wheel nut torque.
The hitch weight for conventional, bumper type hitches should be 10-14% of the gross weight of the vehicle. The remaining 86-90% of the load will be carried on the running gear. The hitch weight for 5th wheel and goose-neck type trailers should be 15-20% of the gross weight of the vehicle, with the remaining 80-85% of the load being carried on the running gear.

No, the two bearings were moved closer together and combined into a single sealed cartridge with only one spindle journal size. This required different spindle and hub-drum designs to accommodate the Nev-R-Lube cartridge. In order to upgrade to this option it will require purchasing new axles, hubs-drums, and possibly new wheels. The Nev-R-Lube option can only be used with certain wheel offsets.

Dexter offers an over/under conversion kit for leaf spring axles. The two different kits available are K71-384-00 for axles with 2-3/8" diameter tube and K71-385-00 for axles with 3" diameter tube. Please note that these conversion kits CANNOT be used with reinforced spring seats. Additionally, changing the spring mounting from under-slung to over-slung (or vice versa) will change the trailer frame height and change the center of gravity of the trailer. This may affect the towing characteristics of the trailer.

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