3500-lb Axle Compatibility with Idler Hubs
Question:
I’m adding a second, 3500 lb axle to my boat trailer. I originally purchased the trailer with no brakes. I added brakes to it and kept the original hubs. I contacted the manufacturer of the trailer to ascertain the size of axle I would need to order. I do not need hubs. This is a straight axle in which the springs are mounted on top of the axle. The manufacturer advised me the following: 76.5” centers, 89.75” hub face, and 94.25” overall length. Can you tell me which axle I’ll need from you, please? Thank you!
asked by: Chad
Expert Reply:
We offer 3500-lb beam axles in two lengths, 89-inch and 95-inch, and all appear on the linked page along with the universal-fit Timbren systems that do not require an axle beam. These 89-inch and 95-inch beam axles have spring centers of 74-inches and 80-inches, respectively.
If you need spring centers spaced at 76-1/2-inches you will need to have spring seats welded on at that spacing. For the 2-3/8-inch diameter of a 3500-lb axle you can use spring seats # TRSS238.
Please note that in order for a hub to fit on an axle it must use the specific set of bearings that fit the spindle on that axle. For example, the Dexter 95-inch beam axle # 7359765, which does not include hubs, has spindles that accept hubs with bearings # L68149 (inner) and # L44649 (outer).
If your old idler hubs use these bearings then they will fit on the spindles. This axle also has a 4-bolt brake mounting flange.
You may care to take a look at the two linked articles on trailer suspensions. These may be helpful as you go through the planning of your trailer modification.
Products Referenced in This Question
Dexter Trailer Axle Beam with E-Z Lube Spindles - 95" Long - 3,500 lbs
- Trailer Axles
- Leaf Spring Suspension
- Easy Lube Spindles
- No Hubs
- 3500 lbs
- Spindles Only
- 80 Inch Long
- 95 Inch Long
- No Drop or Lift
- Dexter
more information >
Replacement Trailer Hub Bearing - L44649
- Trailer Bearings Races Seals Caps
- Bearings
- Standard Bearings
- 1.063 Inch I.D.
- Bearing L44649
- Race L44610
- 3500 lbs Axle
- etrailer
more information >
Replacement Trailer Hub Bearing - L68149
- Trailer Bearings Races Seals Caps
- Bearings
- Standard Bearings
- 1.378 Inch I.D.
- Bearing L68149
- Race L68111
- 3500 lbs Axle
- etrailer
more information >
Spring Seat for Typical 3,500-lb, Round Trailer Axles with 2-3/8" Diameter
- Trailer Suspension Parts
- Spring Seats
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Round Axle - 2-3/8 Inch
- TruRyde
more information >
Product Page this Question was Asked From
Dexter Trailer Axle Beam with EZ-Lube Spindles - 89" Long - 3,500 lbs
- Trailer Axles
- Leaf Spring Suspension
- Easy Lube Spindles
- No Hubs
- 3500 lbs
- Spindles Only
- 74 Inch Long
- 89 Inch Long
- No Drop or Lift
- Dexter
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Kenda Karrier ST205/75R15 Radial Trailer Tire with 15" Black Mod Wheel - 5 on 4-1/2 - LR D
- Shop: LubriMatic Deluxe Bearing Packer
- Shop: Loadstar ST205/75D15 Bias Trailer Tire w/ 15" White Spoke Wheel - 5 on 4-1/2 - Load Range C
- Shop: Dexter Trailer Axle with Idler Hubs - 5 on 4-1/2 Bolt Pattern - 60" Long - 2,000 lbs
- Shop: Castle Rock ST205/75R15 Radial Tire w/ 15" Liger Aluminum Wheel - 5 on 4-1/2 - LR C - Black
- Shop: Loadstar ST205/75D15 Bias Trailer Tire w/ 15" Black Mod Wheel - 5 on 4-1/2 - Load Range C
- Shop: Kenda Loadstar 5.30-12 Bias Trailer Tire with 12" White Wheel - 5 on 4-1/2 - Load Range C
- Q&A: What Information is Needed to Replace Trailer Axle
- Q&A: Can I Put Larger Wheels and Tires On My Harbor Freight Trailer By Replacing the Hubs?
- Q&A: How to Determine the Distance for Mounting Trailer Spring Hangers on a Single Axle Trailer
- Q&A: Are Replacement Hubs Available for a Harbor Freight Trailer
- Q&A: Axle Replacement 1720 Harbor Freight Trailer
- Q&A: Axle Upgrade for my Harbor Freight 1720 Utility Trailer
- Q&A: Difference Between an Idler Hub and a Hub/Drum
- Search Results: idler hubs
- Search Results: harbor freight
- Search Results: harbor freight trailer
- Video: Review of etrailer Trailer Fenders - Single Axle Fender - HP29VR
- Video: Timbren Axle-Less Trailer Suspension System Installation
- Shop: Trailer Hitch
- Search Results: 44649
- Article: Trailer Wiring Diagrams
- Video: Choosing the Right Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: 68149
- Shop: Trailer Wiring
- Search Results: 25580
- Shop: Brake Controller
- Article: How to Choose the Right Trailer Hitch Class
- Video: Lippert Solera Slider Slide-Topper Review
on Trailer Suspension Parts
