Replacement 6,000LB Axle With 4 Drop Spindle and Electric Trailer Brakes

Updated 11/23/2021 | Published 11/21/2021

Products Featured in This Question

Trailer Axle w/ Electric Brakes - 4" Drop - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs

(246)

$670.64

U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles - 7" Long U-Bolts

(2093)

$59.74

Westlake ST225/75R15 Trailer Tire with Silver Mod Wheel - 6 on 5-1/2

(748)

$278.21

Question:

I will then plan to purchase new rims and tires to go with the axle you sell. What will I look for in proper wheels and tires?

asked by: Allen O

Expert Reply:

The Trailer Axle w/ Electric Brakes # e45SR is the closest axle we have that meets the criteria that you gave me. This axle is 6,000lbs with a 4" drop. It has a spring center to spring center measurement of 74" and hub face to hub face of 89". It includes electric brakes and hubs with a 6 on 5-1/2" bolt pattern. The axle does include easy lube spindles that make greasing your bearings much easier.

If this will not work please let me know your hub face dimension and wheel bolt pattern so I can find you a different axle.

Be sure to use a new U-Bolt Kit # APUBR-8 as the current U-bolts are likely corroded and should not be reused.

expert reply by: Bud M

Goodyear Endurance Tire Pressure Chart
(click to enlarge)

Allen O.

1/1/0001

I will then plan to purchase new rims and tires to go with the axle you sell. What will I look for in proper wheels and tires?

Gregory M.

11/23/2021

I recommend looking at the Goodyear Endurance ST225/75R15 Radial Tire w/ 15" Silver Modular Wheel # LH33FR. This wheel matches the 6 on 5-1/2" bolt pattern of the new axle. The Goodyear Endurance tire gives you the ability to adjust the air pressure in the tire to best work with the actual load of your trailer. The tire is a load range E with a maximum capacity of 2,830lbs at 80psi. The air pressure can be lowered to as much as 25psi which will support 1430lbs per tire. This will allow for you to not have an overly bouncy trailer from tires that are rated much higher than the weight of the trailer. I have included the tire pressure chart from Goodyear on the allowable tire pressures and load capability ratings. Otherwise you will need a wheel with a 6 on 5-1/2" lug pattern that is between 14-1/2" and 16-1/2" in diameter that will fit 1/2" lugs. Your tire should size must fit within the fender of your trailer and weight capacity must reflect the maximum weight that your trailer is capable of towing. Do remember that just because you install a 6,000lb axle the trailer frame and springs may not be able to support the additional weight if you had a lower rated axle.