How Can I Determine The Weight Capacity Of Axles On 1972 Gooseneck Trailer?
Updated 11/17/2025 | Published 12/16/2024 >
Question:
i have a gooseneck trailer that i think was made in 1972 im trying to figure out the axle capacity on. it has 8x6.5 lug, 3-14/ axle tube, 61-3/8 spring center, 74 hub face, bower 388-A bearings, national 2081 seal.
asked by: James
Expert Reply:
Hey James, thanks for reaching out. That is a really difficult question to answer because trailers made way back then did not use standardized parts and a lot of older axles and now obsolete. All I can really do is take an educated guess and that would be an axle rating between 8,000 and 12,000 lbs. Most 8 lug hubs are for 7K-12K axles, and the 3-1/2" tube diameter indicates a heavier duty axle 8K or up. I wish I could give you more specific info, but since the axle is so old, there is no way to know for sure. The axle tag would be the only way to know and I am sure the tag on your axle is long gone.
Product Page this Question was Asked From
etrailer Rubber Hitch Cover for 2" Trailer Hitches - Qty 1
- Hitch Covers
- Misc Covers
- Plain
- Rubber
- Fits 2 Inch Hitch
- Standard
- Square
- etrailer
more information >
Continue Researching
- Q&A: Stealth Hitch that Fits 2024 Ford Mustang Mach-E
- Q&A: Why Does the etrailer Trailer Hitch part # e72AR Have a Higher Towing Capacity than the Vehicle?
- Q&A: Best Replacement For Older Dometic Duo Therm 57915.531 Ducted Single Zone AC System With Furnace
- Q&A: Does Roadmaster Invisibrake System Require Installing Diodes too
- Q&A: Replacement Air Conditioner for a Dometic Duo Therm 600315.331
- Q&A: Recommended Replacement AC for a Dometic 57915541
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: What Air Conditioner 13,500 BTU Will Replace My Current Dometic Air Conditioner?
- Article: How to Clean Weld Nuts for the Installation of a Trailer Hitch | etrailer.com
- Article: How to Measure for Trailer Hitch Drop
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: 2 Steps for Finding the Right Weight Distribution Hitch Size
- Article: Trailer Wiring Diagrams
- Article: How to Choose the Right Trailer Hitch Class


Jesse M.
11/17/2025
Hey James, were you able to confirm the axle rating on your old gooseneck trailer? Knowing what you found could help others trying to identify older axles like yours.