Tandem Axle Spring Over-Under Conversion Kit — 3,500 lb Axles, 2.375" (UOCK-3500)
This spring over-under axle conversion kit is designed to relocate leaf springs from the top of the axle to the bottom, or vice versa, on tandem axle trailers equipped with 3,500 lb round axles. Converting spring position typically adjusts trailer ride height by approximately 2–4 inches, depending on spring thickness.
Features
- Allows leaf springs to be mounted above or below the axle
- Commonly used to raise or lower trailer ride height
- Designed for round trailer axles
- Intended for tandem axle suspension setups
Specifications
| Axle Rating | 3,500 lb |
|---|---|
| Axle Diameter | 2.375" (round axle) |
| Application | Tandem axle trailers |
| Part Number | UOCK-3500 |
Kit Contents
- 4 × 2.375" spring seats
- 8 × 1/2" diameter U-bolts (5-1/2" long)
- 4 × U-bolt tie plates
- 16 × 1/2" hex nuts
Designed for trailers equipped with round 3,500 lb axles measuring 2.375" in diameter. Verify axle diameter, spring configuration, and suspension layout before ordering. Professional installation and proper axle alignment are recommended after conversion.