You would need a replacement axle if you have noticed tread wear due to improper tire alignment, which is the result of a bent trailer spindle on one side. In addition, another common reason for axle damage results from over loading the trailer, which will result in noticing tread wear on the insides of both trailer tires. If you trailer experiences exposure to corrosive environments, such as a boat trailer, rust damage is another possible culprit for axle replacement.
This 3,500 lb Capacity Trailer Drop Axle is made with 3/16" Steel Wall Thickness, measures 2 3/8" in diameter, and features #84 Spindles welded into the beam. This listing is for the Beam Only. This Axle is for trailers with a Leaf Spring Suspension. We offer all additionally needed components separately for you to build the exact axle kit that you are needing for your trailer.
This Drop Portion of this axle is the Trailers Spindle. The Spindle has a 4 inch Drop to it, which is then Welded into the Beam of the axle. This Drop lowers the Frame of the Trailer 4 inches. Typically you would be replacing a Drop axle with a Drop Axle. If you are going from a Straight axle to a Drop Axle, you would see your Frame, and Fenders, drop 4 inches, so some adjustments might need to be made.
The Tapered Spindle design of this 3,500 lb Drop Axle has the following features:
Inner Bearing Surface: 1 3/8" ( Accommodates Bearing 68149)
Outer Bearing Surface: 1 1/16" ( Accommodates Bearing 44649)
Grease Seal: 1.72" Grease Seal Surface
This Listing is For a 85" Hub Face Axle that has the Spring Perches welded at 70". This 85 inch Measurement is also referred to as the Track Measurement, or Center of Tire Measurement.
Specific Axle Specifications for this 3,500 lb Trailer Drop Axle:
Hub Face: 85"
*Refers to the Outside Face of one Hub as it meets the wheel to the outside face of opposing hub as it meets the wheel
Brake Flange Measurement: 79"
*Refers to the Outside of one Brake Flange to the outside of opposing brake flange
Overall Axle Length (Tip to Tip): 90"
*Refers to the tip of one side of axle spindle to the opposing tip
Camber: Cambered, Axle Camber is intended for use with Leaf springs mounted below the axle.
Spring Seat Location: Spring Seats are welded at 70", this would mean that your Center of Leaf Spring Measurement would be 70".