Parts Needed When Adding Brakes to a 3,500 Lbs. Axle
Question:
I want to add electric drum brakes to my homemade boat trailer... I know what I need to do with the electrical, etc... I have a brake controller, etc.. We pulled the bearings out of one wheel and have the numbers... Trailer has dual 3500 pd axles 2 3/8 and wheels are 5 on 4 1/2... Axle is setup for EZ Lube and has grease fittings in the end... Bearings are L44649 and L68111... I want to replace everything from the spindle up while I am at it... So I need to know which brakes, hubs/drums, bearings, races, etc... All of it...
asked by: Luke
Expert Reply:
With a 3,500 pound axle you'll need brake flanges with a 4-bolt pattern like # 4-35. Your trailer may already have these and if so that's good. The brake flange needs to be welded to the end of the axle to support the brake assemblies. It will need to be welded perfectly straight for your brakes to function properly so the work should be performed by a certified trailer shop.
For brake assemblies, I recommend # AKEBRK-35-SA Left and Right Side Brake Kit. This kit will include 2-10 inch diameter brake assemblies, one for the left trailer side and one for the right. These assemblies will mount to the 4 bolt brake flanges that you may or may not installed on your axle. These assemblies are self-adjusting and only need an initial adjustment at the time of installation.
The brake drum hubs that will work with your axles will be # AKHD-545-35-K. You will need to order two assemblies and they will include bearings, seals, races (installed in hub), lugs, and dust caps.
The picture you sent has Bearing Buddies installed on your spindles. For a new set of Bearing Buddies, use # BB1980A.
I also recommend using the LubriMatic Disc/ Drum and Wheel bearing Grease, # L11465, when installing your brakes and drums. I also recommend a bearing packer, # L70025, to pack your wheel bearings with grease at installation.
If you can tells us what year your vehicle is , then we can make sure you have all the parts needed for installing your brake controller in your vehicle.
I have attached a few articles brakes, wheel bearing installation and installing a brake controller for you to review.
Products Referenced in This Question
Brake Mounting Flange for 2-3/8" Round Axle
- Accessories and Parts
- Trailer Brakes
- Disc Brakes
- Electric Drum Brakes
- Hydraulic Drum Brakes
- Brake Mounting Flange
- 10 Inch
- 2-3/8 Inch Diameter Axle
- Redline
more information >
Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Pre-Greased
- Trailer Hubs and Drums
- Hub with Integrated Drum
- Standard
- L68149
- L44649
- For 3500 lbs Axles
- 1/2 Inch Stud
- 5 on 4-1/2 Inch
- 13 Inch Wheel
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- etrailer
more information >
Bearing Buddy Bearing Protectors - Model 1980A w/ Auto Check - Chrome Plated (Pair)
- Trailer Bearings Races Seals Caps
- Caps
- Bearing Protector Grease Cap
- 1.98 Inch
- Bearing Buddy
more information >
LubriPlate Poly HP-2 Wheel Bearing Grease for Disc and Drum Brake Applications - 14-oz Cartridge
- Lubricants Sealants Adhesives
- Grease
- Brake and Bearing Grease
- Petroleum-Based
- Standard Bearing Grease
- Polyurea - Conventional
- 14 oz
- LubriMatic
more information >
Product Page this Question was Asked From
etrailer Electric Trailer Brakes - Self-Adjusting - 10" - Left/Right Hand Assemblies - 3.5K
- Trailer Brakes
- Electric Drum Brakes
- Standard Grade
- Self Adjust
- 10 x 2-1/4 Inch Drum
- 3500 lbs Axle
- etrailer
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Article: Most Popular Wheel Bearings
- Shop: etrailer Electric Trailer Brakes - Self-Adjusting - 10" - Left/Right Hand Assemblies - 3.5K
- Shop: Hub Bearing Kit for Lippert, Dexter, and AL-KO Axles - 3,500 lb with #84 Spindle
- Shop: Easy Grease Trailer Idler Hub Assembly for 3.5K Axles - 5 on 4-1/2 - Pre-Greased
- Shop: Easy Grease Trailer Idler Hub Assembly for 3.5K Axles - 5 on 4-1/2 - Galvanized
- Shop: CE Smith Trailer Idler Hub Assembly w/ Case for 3.5K Axles - 5 on 4-1/2 - Galvanized - Pre-Greased
- Shop: Easy Grease Trailer Hub and Drum Assembly for 3.5K Axles - 10" - 5 on 4-1/2 - Pre-Greased
- Shop: Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 4-1/2 - Pre-Greased
- Video: etrailer Trailer Hubs and Drums - Hub - AKIHUB-545-35-G-EZ-K Review
- Video: etrailer Trailer Hubs and Drums - Hub - AKIHUB-545-35-EZ-K Review
- Video: etrailer Trailer Hubs and Drums - Hub - AKIHUB-545-35-K Review
- Video: etrailer Trailer Brakes - Electric Drum Brakes - AKEBRK-35-SA Review
- Video: etrailer Trailer Bearings Races Seals Caps - Seals - 58846 Review
- Q&A: Bearing Buddy Compatibility With 1.99 Inner Diameter Hub Assemblies.
- Q&A: 3,500 lb Hub Replacement Recommendation for 2001 EZ Loader Boat Trailer
- Q&A: Is Grease Seal 58846 Double Lip
- Q&A: What Bearing Kit do I Need for my 2007 EZ Loader Boat Trailer
- Q&A: Can an EZ Lube Hub and Drum be Used with Bearing Buddies on a Non-EZ Lube Trailer Axle
- Q&A: 2002 Alumaweld Boat Rogue Trailer Hubs Replacement
- Q&A: Replacement Trailer Bearing Kit For a Tandem Axle Trailer That Has L68149 Inner Bearings
- Search Results: l44649
- Shop: Trailer Hitch
- Search Results: 25580
- Shop: Trailer Wiring
- Article: Trailer Tire Sizing
- Search Results: l68149
- Article: Trailer Wiring Diagrams
- Shop: Brake Controller
- Video: etrailer Electric Trailer Brake Kit Installation
- Search Results: bearing buddy
on Trailer Brakes
