How To Lift Trailer with 3-1/2 Diameter 8k Axle With Center Point Suspension Already Installed
Updated 01/28/2020 | Published 01/27/2020
Products Featured in This Question
Question:
Hello, I am looking for ways to raise the rear of my 2009 Mobile Suites fifth wheel. My tow vehicle is a 2017 Ram 3500 Dually which when hitched to a BW in-bed fifth wheel hitch, causes the rear of fifth wheel to bee approx. 4-6 inches lower than I need to safely navigate my sloped driveway. What would be the best method of raising. I will check pin block to make sure it is low as possible. If I decide to install axle flip kit, will my center point suspension system parts be in the way ? Thanks for any advice.
asked by: Randall S
Expert Reply:
You can lift your 2009 Mobile Suites 5th Wheel trailer, but since you have 8000-lbs Dexter Axles that are 3-1/2" diameter, the Dexter Trailer Springs Over-Under Conversion Kit # K71-385-00 will not work since they are only designed for 3" diameter axles. It's also worth noting that the Lippert Components Center Point Suspension Upgrade # LC1565391 already raises your trailer approximately 2".
You could add the Tandem Axle Lift Kit # RR23QX which will add approximately 2-1/4" of lift to your existing setup. This kit actually bolts onto the new hangers to elongate them and provide additional lift for your 5th wheel trailer, but isn't going to provide you with the approximately 4-6" you're looking for.
For this reason, you're likely going to need to cut off your existing hangers and change them to longer (taller) hangers that will provide the desired amount of lift. For example, if your current front and rear hangers are 2" tall, swapping them with the # E4139 (4-1/4" tall) would add roughly 2-1/4" of lift to your trailer. You would need to provide measurements of your hangers in order to determine which hangers will replace your current ones and maximize the lift. If there are not available hangers that will get you to over the 4-6" threshold, you can pair new hangers with the Lift Kit # RR23QX I mentioned above to get into that range.
The # E4139 is for double eyed leaf sprigs, but if you can provide me with the length of your current hangers and confirm the type of leaf springs used in your suspension I can help you locate the correct parts to get your trailer lifted up high enough to reduce or eliminate the bottoming out you're experiencing.
Product Page this Question was Asked From
Dexter Trailer Springs Over-Under Conversion Kit
- Trailer Suspension Parts
- Alignment and Lift Kits
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Double Eye Springs
- Round Axle - 3 Inch
- Dexter
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Video: Review of RV Ride Control Trailer Suspension Parts - Alignment and Lift Kits - RR23QX
- Shop: Correct Track Trailer Alignment and Lift Kit - Tandem Axle
- Shop: Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 7K Trailer Axles
- Shop: Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks - Tandem 8K, 3-1/2" Axles
- Shop: Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 5K Trailer Axles
- Shop: Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks - Tandem 8K, 3" Trailer Axles
- Video: Roadmaster Comfort Ride Leaf Spring Suspension Kit Installation - 2021 Grand Design Reflection Fifth
- Search Results: suspension enhancement
- Q&A: How Tight Should the Spindle Nut be on a Dexter 8,000 Pound Axle
- Q&A: Will Demco Disc Brake Actuator Put Out Enough Pressure for Kodiak Disc Brakes
- Search Results: lug nuts
- Shop: Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet and KodaGuard - 3,500 lbs
- Search Results: trss350
- Search Results: 117581
- Shop: Replacement U-Bolt w/Nuts for 8,000-lb, Round Trailer Axles - 9/16" Diameter
- Search Results: lift blocks
- Video: TruRyde Trailer Suspension TRSS350 Review
- Video: Redline Trailer Suspension 117581 Review
- Q&A: Availability of 3-1/2 Diameter Axle U-Bolt
- Q&A: How to Raise a Trailer for More Ground Clearance
- Q&A: Dexter Trailer Springs Over-Under Conversion Kit Recommendation for Additional Ground Clearance
- Q&A: Recommended Gooseneck Trailer Adjustment for Towing with a Ford F-250 with 4 Inch Lift
- Q&A: Best Ways To Raise a Trailer for More Tire Clearance
- Video: An In-Depth Look at the Replacement U-Bolt w/Nuts for 8,000-lb, Round Trailer Axles
- Search Results: axle lift blocks
- Video: All About the MORryde X-Factor Crossmember for LRE, RE, or TRE Leaf Spring Suspension
- Video: Breaking Down the Dexter Single-Axle Trailer Hanger Kit for 3" Slipper Springs
- Article: How to Level a Travel Trailer in 3 Steps
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Ugly RV Makeover: How to Change Outdated RV Lighting
on Trailer Suspension Parts
