KPALAG Leaf Spring Shims 2in 4° Pair — 1045 Steel, E-Coated Black for Axle Angle Correction

KPALAG 2" 4° steel leaf spring shims are precision angle-correction spacers designed to adjust axle and driveshaft tilt by 4° to restore proper suspension geometry.

These universal suspension axle shims come as a pair and are built from 1045 medium-carbon steel for strength and dimensional stability. Finished with an electrophoretic coating to resist corrosion, each shim is two inches wide and intended to slip between leaf spring surfaces or mount points to change the driveline angle without major rework. They’re a compact, mechanical way to fine-tune alignment and reduce stress on related components after lift or lowering changes.

How do these shims correct driveline angle?

By adding a thin wedge between the spring perch and axle or between spring packs, the shim shifts the axle’s pitch relative to the frame by approximately 4°. This small angular change can re-center the driveshaft and reduce U-joint operating angles that cause vibration.

• 4° wedge profile per shim to alter axle tilt precisely
• 2" width fits common leaf spring contact areas
• Used singly or stacked to tweak angle incrementally
• Works with front or rear leaf-spring suspensions

What materials and finish ensure durability?

KPALAG shims use 1045 steel, a medium-carbon alloy noted for good tensile strength and wear resistance, helping them maintain shape under load. An electrophoretic coating reduces surface corrosion and gives a consistent finish that extends service life in varied conditions.

• 1045 steel core for strength and hardness retention
• Electrophoretic (e-coat) finish for corrosion protection
• Fabricated thickness optimized for structural stability
• Resistant to temperature and road-environment exposure

How simple is installation and what tools are needed?

Installation is straightforward for mechanically inclined users: lift the axle with a jack, relieve spring load, slide the shim into place, then secure the assembly. No specialized machining is required, but basic shop tools and safe lifting equipment are essential.

• Requires jack or lift to separate frame and axle
• Common hand tools (wrenches, sockets) for fastener removal
• Shims drop into spring perch or between leaf packs
• Can be installed individually or stacked to adjust angle

Will these shims work on my vehicle?

These shims are made as universal leaf-spring angle-correction parts, suitable for many vehicles that use leaf spring axles. Compatibility depends on spring perch dimensions and the amount of angle correction required; check clearance and load ratings before installing.

• 2" width fits a wide range of leaf spring perches
• 4° correction per shim—use stacking for greater change
• Ideal for vehicles after lift, lowering, or axle repositioning
• Confirm fit against your spring perch geometry first

Who is this for: KPALAG 2" 4° steel leaf spring shims are intended for DIY mechanics, professional installers, and off-road enthusiasts needing a compact, reliable way to correct driveshaft or axle angles without changing spring packs. They suit anyone who wants a durable, corrosion-resistant shim to tweak suspension geometry on trucks, SUVs, or utility vehicles that use leaf springs.