Tire and Wheel Recommendations for a 37 Foot Dual Axle 5th Wheel Trailer with 235/85-16 Tires
Published 08/26/2011
Products Featured in This Question
Question:
I have a 37 foot fifth wheel trailer with LT 235/85R16 - Load range G tires Goodyear G614 RST - rated at 3750# @ 110psi. The trailer recommendation is to run 110psi inflation due to nearly 14,000 lb. trailer weight on 4 tires. My present rims 11 years old is rusting under the paint and am concerned that I should replace them before I have rim failure. Question: What is the difference between AM20750 and AM20768? What is the load and pressure rating of each? And which would you recommend for my trailer?
asked by: Larry R
Expert Reply:
The Dexstar Steel Spoke Trailer Wheel, # AM20750, uses 1/2 inch -20 bolts AND/OR 9/16 inch -18 bolts. It is rated for 3,750 pounds at 110 psi.
The Dexstar Steel Spoke Trailer Wheel, # AM20768, uses just 1/2 inch - 20 bolts. It has a capacity of 3,960 pounds at 110 psi.
The rest of the specs are the same for each. Both are 16 x 6 inch wide, have an 8 on 6-1/2 bolt pattern, and a pilot diameter of 4.9 inches.
The Dexstar Steel Spoke Trailer Wheel, # AM20750, would be the way to go for two axles with a total of 4 tires.
Make sure to use ST trailer tires. The ST in front of the tire sizes indicates Special Trailer. Trailer tires are designed with a thicker side wall to handle more vertical load. An LT is a light truck tire and light truck tires should not be used on trailers. The exception is if the LT comes at the END of the size then that would indicate it is appropriate for trailer use.
Some Load Range F tires actually have a higher capacity than some Load Range G tires. I recommend the Karrier ST235/85R16 Radial Trailer Tire, # AM10501. This is a Load Range F tire rated for 3,960 pounds at 95 psi. However, you will need to stay within the capacity of the rims at 3,750 pounds at 110 psi.
Trailer tires should always be inflated to the maximum psi listed on the tire to avoid excessive heat build up and failure. I have included a link to our FAQ articles on trailer tires and wheels.
Product Page this Question was Asked From
Dexstar Steel Spoke Trailer Wheel - 16" x 6" Rim - 8 on 6-1/2 - White Powder Coat
- Trailer Tires and Wheels
- Wheel Only
- 16 Inch
- 8 on 6-1/2 Inch
- Steel Wheels - Powder Coat
- Dexstar
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: trailer tires and wheels
- Video: A Closer Look at the Dexstar Steel Spoke Trailer Wheel
- Shop: Americana Metal, Bolt-In Valve Stem - 1-1/4" Long
- Shop: Dexstar Steel Spoke Trailer Wheel - 16" x 6" Rim - 8 on 6-1/2 - White Powder Coat
- Shop: Dexstar Steel Spoke Trailer Wheel - 16" x 6" Rim - 8 on 6-1/2 - White Powder Coat
- Article: Trailer Wiring Diagrams
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Search Results: trailer hitch
- Shop: Trailer Hitch
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Video: A Look at the Power Mountain Tallboy 6 Ton Off-Road Bottle Jack with a Military Cargo Trailer
- Shop: Power Mountain Tallboy Off-Road Bottle Jack - 8-1/2" to 37-3/4" Lift - 6 Tons
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Shop: etrailer Anti-Rattle Hitch Collar for 2" Hitch Receivers
- Shop: Suspension Enhancement
- Video: Measuring To Choose The Right Trailer Axle
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Q&A: Which is Better for Highway Use 4.80-12 or 5.30-12 Trailer TIres
- Search Results: trailer wiring
- Q&A: Comparing Kenda KR03, KR35, And KR53 Tires
- Shop: Trailer Wheel Bearing Kit for Lippert, Dexter, and AL-KO Axles - 3,500 lb with #84 Spindle
- Search Results: trailer jack
- Shop: Brake Controller
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: Gooseneck Hitch
- Article: How to Measure for Trailer Hitch Drop
- Q&A: What is the Difference Between Load Range C and D ST175/80D13 Trailer Tires
- Search Results: spare tire mount
on Trailer Tires and Wheels
