One New Trailer Leaf Spring, -4 leaf double eye 1,750lbs for 3,500 lbs trailer axle This is the most commonly used standard spring for 3,500 lbs trailers in the market. We sold hundreds of the containers of this spring to major trailer and trailer axle manufacturers.

One New Trailer Leaf Spring-6 leaf double eye 3,500lbs rated for 7,000 lbs trailer axle This is very commonly used standard spring for 7,000 lbs trailers in the market. We sold tens of thousands of this spring to major trailer and trailer axle manufacturers.

When using one axle, order two springs to the correct capacity and one shackle set. With tandem axles, order 4 correct capacity springs and one tandem axle shackle set. Sold individually. Spring Type: Leaf Trailer Spring, Spring Capacity Per Pair (lbs.): 3,500, Springs Included (qty.): 1