Replacement 3,500lb Dexter Axle For Diamond C 3RBT Utility Trailer
Updated 03/07/2021 | Published 03/05/2021 >
Products Featured in This Question
Question:
etrailer, I need an axle replacement for my Diamond C 3RBT utility trailer. I talked to Diamond C and this is the info they gave me: Dexter Part#7703056 Axle 3500lb idler 550 EZ lube 88 hub face 74 center Can you assist me with find the correct axle on your website?
asked by: Tim H
Expert Reply:
Based on the information you gave me, the closest axle we have is the 3,500lb EZ-Lube Dexter axles which measure 74" from spring center to spring center and 89" from hub face to hub face. While you were looking for 88" hub face to face, this 89" shouldn't cause any issue and is likely the correct size axle that you were needing since 89" is extremely common. Either way, the 1" difference will not be a problem.
For a complete axle and electric brake setup with 5 on 4-1/2 bolt pattern you can go with Trailer Axle w/ Electric Brakes - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 89" - 3,500 lbs # e43SR for straight axle or Dexter Trailer Axle w/ Electric Brakes - 4" Drop - E-Z Lube - 5 on 4-1/2 - 89" - 3.5 # 8327812-EB for a 4" drop axle.
For an axle idler hub setup with 5 on 4-1/2 bolt pattern you can use Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 89" Long - 3,500 lbs # 35545I-EZ-89 for straight axle or Dexter Trailer Axle Beam w/ Idler Hubs - 4" Drop - E-Z Lube - 5 on 4-1/2 - 89" Long - 3.5K # 8327812-I for a 4" drop axle.
For just the axle with spindles, use Dexter Trailer Axle Beam with EZ-Lube Spindles - 89" Long - 3,500 lbs # T3584F-EZ-8974 for straight axle or Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles - 89" Long - 3,500 lbs # 8327812 for a 4" drop axle. You can then use Trailer Idler Hub Assembly for 3,500-lb E-Z Lube Axles - 5 on 5 - Pre-Greased # AKIHUB-550-35-EZ-K if you need 5 on 5 lug pattern or use Trailer Hub and Drum Assembly - 3,500-lb E-Z Lube Axles - 10" Diameter - 5 on 5 - Pre-Greased # AKHD-550-35-EZ-K for 5 on 5 lug pattern with hub and drum assembly for electric / hydraulic brakes.
I have attached demonstration videos for these axles listed.
Product Page this Question was Asked From
Trailer Axle w/ Electric Brakes - Easy Grease - 5 on 4-1/2 Bolt Pattern - 89" Long - 3,500 lbs
- Trailer Axles
- Leaf Spring Suspension
- Standard Grade
- Electric Brakes
- 3500 lbs
- 5 on 4-1/2 Inch
- 74 Inch Spring Center
- 89 Inch Hub Face
- No Drop or Lift
- etrailer
more information >
Featured Help Information
Miscellaneous Media








Continue Researching
- Article: Trailer Wiring Diagrams
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Replacement Brake Assemblies and Hubs for 1960 Airstream Trailer
- Article: How to Change the Axle on your Boat Trailer Without Leaving your Driveway
- Q&A: Over Under Conversion Kit Needed To Lower The Height Of A Boat Trailer
- Article: Parts Needed to Add Electric Drum Brakes to a Trailer
- Q&A: Where To Connect Two White Wires From Brakes on Trailer Axle
- Q&A: How to Determine Replacement 6,000 lb Leaf Springs For Arctic Wolf 5th Wheel Trailer
- Q&A: Instructions to Wire a Trailer for Electric Brakes
- Article: Double-Eye Trailer Suspension System Review
- Q&A: How Much Distance Should I Have Between The Tire And The Trailer Frame?
- Q&A: My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
- Article: How to Tell the Weight Rating of a Trailer Axle
- Article: How to Accurately Measure Trailer Leaf Springs

