Rancho Leaf Spring Center Bolt Kit - Grade 8 Hardware For Lift Kits & Spring Packs

Building a leaf spring lift kit or replacing worn-out spring hardware? This Rancho center bolt kit has the heavy-duty pins you need. It includes two Grade 8 center bolts, each 5 inches long and 0.38 inches in diameter, plus matching nuts. They’re zinc-plated to resist rust and fatigue. These bolts are used to align and clamp multi-leaf spring packs together and center them on the axle. Over time, the factory bolts can rust, stretch, or break—especially in lifted or heavily used trucks. Swapping in these stronger bolts adds reliability and peace of mind. They’re universal fit for most leaf spring applications, including aftermarket lift kits. Just make sure the length and diameter match your springs. An inexpensive but critical part for any leaf spring repair or upgrade.