What Parts Do I Need To Upgrade From 3,500 lb Axle To 5,000 lb Axle?
Updated 11/17/2025 | Published 12/02/2024
Products Featured in This Question
Question:
I am wanting to upgrade my axles from 3500 to 5000. Is this something you can assist me with identifying al the parts I will need?
asked by: Jbryan B
Expert Reply:
Hello Jbryan, thanks for reaching out. I can certainly point you in the right direction. There are a few things we will want to look at here in order to be sure you get the right parts. Mainly I will need to know the hub face length and spring center length of the current axle. It is possible to upgrade the capacity, but the new axle will need to be identical in length to the current axle.
For example, the Trailer Axle Beam # e55GR is 89" long overall and has a 74" spring center as you can see in the diagram below. Confirm these measurements for your axle and that will tell us what replacement you will need.
Also note that 3,500 lb axles have a 2-3/8" diameter and the 5,200 lb axles are a 3" diameter so you will need new u-bolts, part # CE23003 to go with each new axle.
(click to enlarge)
Product Page this Question was Asked From
Trailer Axle Beam with Easy Grease Spindles - 89" Long - 5,200 lbs
- Trailer Axles
- Leaf Spring Suspension
- Standard Grade
- No Hubs
- 5200 lbs
- Spindles Only
- 74 Inch Spring Center
- 89 Inch Hub Face
- No Drop or Lift
- etrailer
more information >
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Jesse M.
11/17/2025
Hey Jbryan, were you able to confirm the hub face and spring center measurements on your current axle? Once you have those, we can be sure the new 5,200‑lb axle and u‑bolt kit are the right match. Let me know what you find so we can narrow it down.