Will Switching From a Drop Axle to a Straight Axle Increase Tire Clearance
Question:
Thanks Conner for that valuable information. I have another question. Would you help me figure out why my concession trailer is 3/4” lower on one side than the other. I have ruled out the tires because they are the same height. The leave springs are not that old so I don’t think there is any sag there. What could I do to correct this? Thanks
asked by: Charlie
Expert Reply:
The 175/80-13 tire that you have now is 24" diameter x 6.9" wide and the new 225/75-15 tire is 28.3" diameter x 8.9" wide. Therefore, the new tire size will be 4.3" larger in overall diameter and 2" larger in overall width. However, you will only need to account for half of each measurement so 2.15" for diameter and 1" for width.
The conversion from the 4" drop axle you have now to a straight axle is actually going to bring the spindle down in line with the axle which means you are actually going to have more tire to fender clearance with the new axle than you did with the old drop axle.
I have attached a list of our 6,000 lb trailer axles as well as our 225/75-15 wheel/tire combos for you as well. If you can tell me the spring center and hub face measurement of your axle then I would be glad to see if we have a match for you. For example, the Dexter Trailer Axle Beam with E-Z Lube Spindles part # 8327830 has a 74" spring center and 89" hub face measurement. If you were to add the Dexter Nev-R-Adjust Electric Trailer Brake Kit part # 23-458-459 with the Dexter Trailer Hub and Drum Assembly part # 8-201-9UC3-EZ you could then use Karrier ST225/75R15 Radial Tire with 15" White Spoke Wheel - 6 on 5-1/2" - Load Range E Item # AM32680, which is rated at 2,830 lbs and has an 81 mph speed rating.
Products Referenced in This Question
Dexter Nev-R-Adjust Electric Trailer Brakes - 12" - Left/Right Hand Assemblies - 6K
- Trailer Brakes
- Electric Drum Brakes
- Standard Grade
- Self Adjust
- 12 x 2 Inch Drum
- 6000 lbs Axle
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- 16 Inch Wheel
- Dexter
more information >
Dexter Trailer Hub and Drum Assembly - 5,200-lb and 6,000-lb Axles - 6 on 5-1/2 - Pre Greased
- Trailer Hubs and Drums
- Hub with Integrated Drum
- Pre-Greased
- 25580
- 15123
- For 5200 lbs Axles
- For 6000 lbs Axles
- 6 on 5-1/2 Inch
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- Dexter
more information >
Karrier ST225/75R15 Radial Tire with 15" White Spoke Wheel - 6 on 5-1/2" - Load Range E
- Trailer Tires and Wheels
- Tire with Wheel
- Radial Tire
- Load Range E
- 225/75-15
- 15 Inch
- M - 81 mph
- 6 on 5-1/2 Inch
- Steel Wheels - Powder Coat
- Kenda
more information >
Product Page this Question was Asked From
Dexter Trailer Axle Beam with E-Z Lube Spindles - 89" Long - 6,000 lbs
- Trailer Axles
- Leaf Spring Suspension
- EZ Lube Spindles
- No Hubs
- 6000 lbs
- Spindles Only
- 74 Inch Spring Center
- 89 Inch Hub Face
- No Drop or Lift
- Dexter
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Article: Trailer Lighting Requirements
- Shop: Kenda Karrier ST235/80R16 Radial Trailer Tire with 16" Black Mod Wheel - 6 on 5-1/2 - LR E
- Video: Let’s Check Out the CE Smith U-Bolt Kit for Mounting Round Trailer Axles
- Shop: TowSmart Channel Tongue Trailer Coupler - Trigger Latch - 2" Ball - Bolt On
- Shop: Trailer Hitch
- Shop: 3-Leaf Double-Eye Spring for 2,500-lb Trailer Axles - 25-1/8" Long
- Shop: LED Bullet Clearance or Side Marker Trailer Light with Grommet - 3 Diodes - Amber Lens
- Video: Comprehensive Review: U-Bolt Kit for Mounting 3,500-lb, Round Trailer Axles
- Shop: Front Mount Hitch
- Search Results: dexter axle d35
- Video: Let’s Check Out the LED Bullet Clearance or Side Marker Trailer Light with Grommet
- Video: Let’s Check Out the Demco Channel Tongue Trailer Coupler
- Video: Erickson Multiplier Ratchet Tie Down Strap Manufacturer Demo
- Video: Choosing the Right Trailer Fenders
- Shop: Tire Chains
- Search Results: d35
- Article: Double-Eye Trailer Suspension System Review
- Shop: CE Smith U-Bolt Kit for Mounting 3,500-lb, Round Trailer Axles - 5-1/2" Long U-Bolts - Zinc
- Article: How to Raise Your Travel Trailer Height
- Q&A: What are the Wires at Each End of Dexter 3500 Pound EZ Lube Axle # T3584F-EZ-8974
- Q&A: What Are The Wires For In The Axle Tube Of Dexter Trailer Axle w/ Idler Hubs # 7359765-I?
- Q&A: Instructions to Wire a Trailer for Electric Brakes
- Shop: Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles - 89" Long - 3,500 lbs
- Article: Where to Position the Trailer Axle?
- Shop: Towing Mirrors
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
- Shop: Loadstar ST175/80D13 Bias Trailer Tire with 13" White Wheel - 4 on 4 - Load Range C
- Search Results: brake controller wiring
- Search Results: brake controller wiring kit
on Trailer Suspension Parts
Charlie
1/31/2019
Thanks Conner for that valuable information. I have another question. Would you help me figure out why my concession trailer is 3/4” lower on one side than the other. I have ruled out the tires because they are the same height. The leave springs are not that old so I don’t think there is any sag there. What could I do to correct this? Thanks