How To Determine the Weight Rating of a Trailer Axle For Leaf Spring Replacement
Question:
We have a shasta 22 foot camper that we use for deer camp and the springs are getting weak. How do we determine the weight rating of the axle for replacemant purposes? Thank you and yes the camper was built in the late 70s
asked by: Larry C
Expert Reply:
The trailer will have a plate or sticker on it that will list the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that will list the weight capacity. Since the trailer you have is an older trailer it might be missing the plate or be very hard to read.
You can also tell the weight capacity of the axle by measuring the diameter of the axle. A 2,000-lb axle will have an axle diameter of 1-3/4 inch. A 3,500-lb. axle will have a axle diameter of 2-3/8 inches and a 6,000-lb. to 7,200-lb. axle will have an axle diameter of 3 inches.
I am including a link to a FAQ page on trailer suspensions and it will list the axle diameters for different axle weight capacities.
Also, I am including a link to a FAQ page on leaf springs. It will have a chart that will show the sizes and capacities of the leaf springs.
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