Replacement Axle and Disc Brakes for 2018 Grand Design Imagine 2970RL With 4,400 lb Axle
Updated 01/05/2026 | Published 09/12/2024
Products Featured in This Question
Question:
Hi Robin, Thank you. I did not see the reply until now. Ok let's switch gears then. Do you sell a larger axle with disc brakes and pump assembly with hoses that will bolt on to my travel trailer? If so, please send the part numbers for pricing for everything. Thanks
asked by: Terry Z
Expert Reply:
Hello again Terry; the next size up is a 5,200 lb axle which is commonly used to replace a 4,400 lb like the one you have now. Your current hub face measurement (length) is 86-1/2" so you can use the Dexter Trailer Axle Beam with E-Z Lube Spindles - 86-1/2" Long - 5,200 lbs # 8327816 as a replacement.
The spring center measurement is 71-1/2" so you will have to cut off the spring seats and weld on # TRSS300 to match your current 68-1/2" measurement. You will also need the U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles # APUBR-8 for installation.
With the new axle you will be able to use the DeeMaxx Disc Brake Kit - 12" Hub/Rotor - 6 on 5-1/2 - Maxx Coating - 6,000 lbs # DE28YR. These have a 6 on 5-1/2 bolt pattern so you can use your existing wheels. The actuator # DE47SR and hydraulic brake lines # DE57SR are the same as the previous answer so that will complete the setup.
Product Page this Question was Asked From
Dexter Trailer Axle Beam with E-Z Lube Spindles - 86-1/2" Long - 5,200 lbs
- Trailer Axles
- Leaf Spring Suspension
- Standard Grade
- No Hubs
- 5200 lbs
- Spindles Only
- 71-1/2 Inch Spring Center
- 86-1/2 Inch Hub Face
- No Drop or Lift
- Dexter
more information >
Continue Researching
- Article: How to Measure a Trailer Axle
- Search Results: bearing kits trailer bearings races seals caps
- Shop: Replacement Trailer Brake Magnet Kit for Dexter and Hayes / AL-KO 10" Trailer Brakes
- Shop: Dexter Trailer Hub and Drum Assembly for 3,500-lb E-Z Lube Axles - 10" Diameter - 6 on 5-1/2
- Search Results: trailer axles
- Video: Feature Review Dexter Trailer Hub and Drum Assembly for 3,500-lb E-Z Lube Axles
- Video: What to Know About the Replacement U-Bolt Axle Mounting Hardware Kit
- Video: Ultimate Overview of the CE Smith U-Bolt Kit for Mounting 5.2K to 7K, Round Trailer Axles
- Shop: Complete Bearing Kit with L44649 Inner/Outer Bearings and 10-9 Grease Seal Fits 1.063" Spindles
- Shop: Timken Bearing Kit for Lippert, Dexter, and AL-KO Axles - 3,500 lb with #84 Spindle
- Q&A: Length Of The U-Bolts In The Replacement U-Bolt Axle Mounting Hardware Kit # LC27XV
- Q&A: Determining Correct Axle Upgrade For 2018 Grand Design Imagine Travel Trailer
- Q&A: Recommended Dexter Axle To Replace Lippert Axle
- Q&A: Replacement for Lippert 3500 Lb Axle
- Shop: Dexter Trailer Axle w/ Electric Brakes - 4" Drop - E-Z Lube - 5 on 4-1/2 - 89" - 3.5K
- Shop: CE Smith U-Bolt Kit for Mounting 5.2K to 7K, Round Trailer Axles - 7" Long U-Bolts - Zinc
- Shop: Replacement U-Bolt Axle Mounting Hardware Kit - 3" Axles
- Video: How to Install the Hydrastar Electric Over Hydraulic Actuator on a 2023 East To West Ahara Fifth Whe
- Video: Remove and Reinstall a Trailer Hub Review
- Video: How to Install the Kodiak 6 on 5-1/2 Disc Brakes - 2020 Grand Design Reflection Fifth Wheel
- Q&A: Replacement Axle Beam for 2020 Grand Design Reflection 315RLTS
- Q&A: What Makes 5200lb and 6000lb Dexter Axles Different Capacity?
- Q&A: Replacement For 86-1/2 Inch Long 5,200 lb Axle
- Article: Trailer Wiring Diagrams
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
- Article: Double-Eye Trailer Suspension System Review
- Article: How to Accurately Measure Trailer Leaf Springs
- Article: Brake Controller Installation: Starting from Scratch
- Article: How to Raise Your Travel Trailer Height
on Trailer Axles
Robin H.
1/5/2026
Hey Terry, how did the upgrade to the 5,200‑lb Dexter axle and DeeMaxx disc brake setup work out on your travel trailer? Your results could really help others thinking about a similar swap.