How wide is the front leaf spring on a K10?
The front leaf springs on a Chevrolet K10 are typically about 52 inches wide from edge to edge. Exact width can vary by year, model, and whether the springs are stock or aftermarket.
To understand what that means for your truck, it helps to know how the measurement is taken, how it relates to the axle and track width, and how common variations appear across different K10 generations.
What the measurement covers
The term “width” for a front leaf spring refers to the transverse dimension of the spring pack—the distance from the outer edge of the left-hand spring to the outer edge of the right-hand spring, when the pack sits on the axle. This width influences how the spring mounts to the frame, how the shackles and shocks fit, and how the wheel track lines up with the tires.
Typical stock widths by era
Most stock K10 front leaf-spring packs fall in a relatively narrow band around 52 inches wide, with small year-to-year variations. The following ranges reflect common configurations seen on factory trucks.
- Late 1960s to early 1970s K10s: approximately 50–52 inches wide.
- Mid- to late-1970s through mid-1980s K10s: commonly around 52 inches wide.
- Aftermarket or custom springs: widths can vary widely, often 50–54 inches or more depending on design.
When replacing springs, always verify the exact width from the supplier or measure the current pack to ensure compatibility with your shocks, steering linkage, and wheels.
Why the width matters for performance and fit
The spring width influences the track width and how the axle sits within the wheel wells. A wider or narrower than stock spring can affect steering geometry, shock travel, and tire clearance. For restorations or upgrading to aftermarket suspension, matching or intentionally widening/narrowing the spring width may be part of your build plan.
Summary
In most stock K10 front suspensions, the front leaf-spring width is about 52 inches, give or take a bit depending on year and spring configuration. For precise restoration or upgrade work, measure your existing springs or confirm with the manufacturer to ensure proper fit with the rest of the front-end components.
