Spicer Front Axle Lower King Pin for 1978-1991 Ford F-350, Chevy & Dodge (Kingpin Dana 60, Single Component)

Eliminate harsh front-end play, stabilize your steering tracking, and restore uncompromised structural integrity to your heavy-duty rig with this genuine Spicer Front Axle Lower King Pin. Specifically engineered as a high-durability original equipment replacement for 1978–1991 Ford F-350 4x4 trucks, as well as classic 1-ton Chevy/GMC and Dodge kingpin platforms, this single tapered pin provides the essential heavy-duty pivot point required to refresh a loose or pitted steering knuckle assembly.

On classic mono-beam Dana 60 solid front axles, the steering knuckles do not use modern ball joints. Instead, they rely on an ultra-rugged, industrial-grade kingpin configuration. The lower section of this system utilizes a precision-machined, hardened steel kingpin that presses tightly into the knuckle shell and seats down into a heavy-duty tapered roller bearing within the inner C-axle ear. Over decades of heavy commercial use, extreme snowplowing, or trail riding with massive 37-inch or larger off-road tires, this lower pin can develop deep pitting, rust scars, or flat spots due to moisture intrusion or lack of grease. A worn lower kingpin introduces structural slack into the steering knuckle pivot axis, leading to severe tire cupping, unsafe steering wheel shimmy, low-speed clunking, and a total loss of front-end alignment stability.

This original equipment manufacturer (OEM) replacement component is forged by the industry’s benchmark drivetrain supplier from premium-grade carbon-alloy steel, induction-hardened to exact case depths, and ground to microscopic factory tolerances. Choosing a genuine Spicer kingpin guarantees uncompromised metallurgical density and a flawless press-fit into your factory steering knuckle, avoiding the rapid wear or loose housing tolerances common with cheap aftermarket alternatives.

Component Features:

• Industrial Forged Strength: Precision-manufactured from high-tensile alloy steel to support the immense front-end weight of heavy iron-block engines and commercial utility attachments.

• Micro-Ground Seating Surface: Features a mirrored, ultra-smooth outer taper to ensure uniform load distribution across your lower kingpin tapered roller bearings.

• Restores Alignment Accuracy: Re-establishes a rock-solid lower pivot axis to instantly clear up lane drift and stabilize steering knuckle geometry under extreme load.

• Genuine Spicer OEM Quality: Engineered directly from original blueprint dimensions to guarantee hassle-free installation and strict compliance with factory strength parameters.

Vehicle & Axle Fitment:

• Axle Profile: Solid Mono-Beam High-Pinion or Low-Pinion Dana 60 Front Axles with Kingpin Suspensions. Does not fit later ball-joint style Dana 60 or Dana Super 60 configurations.

• Ford F-350: 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, and 1991 1-ton 4x4 truck models.

• Chevrolet & GMC K30 / K3500 Pickup & V3500: 1977–1991 1-ton 4x4 trucks equipped with kingpin Dana 60 front axles.

• Dodge W300 / W350 Pickup: 1975–1991 1-ton 4x4 trucks running open-knuckle kingpin Dana 60 housings.

• Position: Front Outer Axle Steering Knuckle — Lower Position, Left (Driver) or Right (Passenger) Side. (Note: Sold individually; two pins required if overhauling both sides of the front axle).