Lassos Boutique Kryptonite Heavy-Duty Upper & Lower Ball Joint Set — Fits 2003–2013 Ram 2500/3500 4x4 Cummins, Pre-greased

Heavy-duty Kryptonite upper and lower ball joints built for 2003–2013 Ram 2500/3500 4x4 Cummins trucks deliver reinforced steering and suspension reliability for demanding work and off-road use.

When you need a direct-fit replacement that tolerates heavy towing, towing, off-roading and daily hard use, this Kryptonite ball joint package supplies oversized internals, heat-treated chromoly studs and a protective finish. Each joint ships pre-greased with premium Chevron Ultra EP2 grease and is manufactured in the USA to meet the higher loads and tougher environments that heavy-duty Rams experience.

How do these ball joints improve steering durability?

The Kryptonite joints use 4140 chromoly studs that are heat-treated for higher tensile strength and wear resistance compared with standard OEM components. Oversized internal parts and a robust construction reduce flex under load, keeping steering geometry stable longer under towing and heavy payloads.

• Heat-treated 4140 chromoly studs for improved strength
• Oversize heavy-duty internals to resist deformation
• Black oxide finish for corrosion resistance
• Direct press-in replacement for factory fit

What makes installation and maintenance easier?

These joints come pre-packed with Chevron Ultra EP2 grease, so they’re ready for immediate installation without additional lubrication. The upper and lower joints include serviceable grease ports, allowing future maintenance and extending service life when serviced regularly.

• Pre-greased out of the box for quick install
• Serviceable grease ports for periodic re-greasing
• Direct-fit design eliminates modification or adapters

Will these fit my Ram 2500/3500 model and drivetrain?

This package covers a broad run of heavy-duty Rams: 2003–2007 5.9L and 2007.5–2013 6.7L Cummins 2500 and 3500 4x4 models. The set contains both upper and lower replacers (KR0316 upper, KR7467 lower) so you can refresh all primary front ball joints in one service session.

• Fits 2003–2007 Ram 2500/3500 4x4 5.9L Cummins
• Fits 2007.5–2013 Ram 2500/3500 4x4 6.7L Cummins
• Includes two uppers and two lowers for a full axle service

What warranty and quality assurances are included?

Kryptonite backs steering and suspension components with a no-nonsense lifetime warranty to the original purchaser against defects, premature wear, or breakage, with specific exclusions. Products are made in the USA and designed for the harsher demands of heavy-duty use, racing, and off-road conditions.

• Lifetime warranty against defects and premature wear (original purchaser)
• Made in the USA to heavy-duty specifications
• Warranty excludes heim joints; check terms for details

Who is this for? Owners of 2003–2013 Ram 2500/3500 4x4 trucks with 5.9L or 6.7L Cummins engines who tow, haul, lift, or drive off-road and want a heavy-duty, direct-fit upgrade. It's aimed at mechanics, fleet managers, and DIY truck enthusiasts wanting a durable OEM-replacement solution that’s install-ready and serviceable for longer life under tougher conditions.