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12-15K 5″ Tube U-Bolt Kit – 3/4″ Rod Diameter
$ 99.00
Description The 12-15K U-Bolt Kit secures heavy trailer axles to leaf springs. It fits 5 inch round trailer axle tubes and 3 inch wide leaf springs, the common setup on 12,000 lb and 15,000 lb trailer suspensions. This heavy-duty kit includes four U-bolts, two tie plates, and eight lock nuts to mount one axle. The U-bolts use a 3/4″-10 thread diameter and measure about 9-5/8″ long to wrap around the large axle tube and spring stack. The kit works with trailers that use leaf spring suspension systems. You install it after you place the leaf springs beneath the axle tube. Then you slide the U-bolts over the axle tube. Next, you set the tie plates under the spring stack and thread the nuts on. Tightening the nuts evenly pulls the axle tightly to the springs. Proper torque helps keep the assembly secure under load. This U-bolt kit fits many heavy utility trailers, equipment trailers, gooseneck trailers, livestock trailers, and car haulers with 12K–15K rated axles. Match it to tapered or straight round axle housings with 5-inch outer diameters. The 3″ spring width matches typical heavy-duty 3″ leaf springs, including slipper and multi-leaf setups found on high-capacity tandem axles. A solid U-bolt clamp prevents axle shift, reduces suspension noise, and improves handling. Install this kit whenever you perform a spring replacement, axle rebuild, or suspension upgrade. New U-bolts stand up better to load cycles and road shock than reused hardware. Torque the nuts in a crisscross pattern to avoid distortion.
Planting & Care
At a Glance â 3-in-1 Combination Peach Tree
- Sun: 1/2 day to full day of sun
- Soil: Well-drained, moderately fertile soil
- Water: Keep evenly moist during establishment
- Rootstock: Semi-dwarf (Lovell)
- Size: 12â15 ft at maturity
- Pollination: Self-fertile
- Harvest: JulyâSeptember
- Hardiness: USDA Zone 5â9
Planting & Care â 3-in-1 Combination Peach Tree
Site Selection
- Choose a location with excellent sunlight to ensure full sweetness and color.
- Good airflow reduces fungal pressure, especially in humid or coastal climates.
Soil Preparation
- Prefers well-drained loam or sandy loam; avoid clay-heavy or waterlogged soil.
- Add compost to improve drainage and fertility.
- Ideal soil pH: 6.0â7.0.
Planting Instructions
- Plant at the same depth as in the nursery pot.
- Water deeply and mulch with 2â3 inches of organic matter.
- Keep mulch a few inches away from the trunk.
Watering & Fertilizing
- Maintain consistent moisture during the first 1â2 years.
- Deep water 1â2 times per week in heat or drought.
- Peaches are medium feedersâuse a balanced organic fertilizer in early spring if growth appears weak.
- Avoid overfertilization, which reduces fruit quality and increases disease risk.
Pruning & Graft Management
- Prune more vigorously growing grafts to maintain balance across the tree.
- Encourage an open center to improve light penetration.
- Thin fruit clusters to improve size and prevent limb damage.
Harvest & Use
- Frost offers classic peach flavor with strong leaf curl resistance.
- Salish Summer (Q-1-8) produces juicy, richly flavored fruit well-suited to cooler climates.
- Indian Free provides brilliant red flesh and outstanding complexity.
- Muir delivers exceptionally sweet, aromatic fruit.
General Tips
- Combination peach trees thrive when graft vigor is balanced yearly through pruning.
- Renew mulch annually and water consistently for best fruit quality.
- Leaf curlâresistant varieties reduce the need for sprays in many climates.
