Kryptonite Bolt-In Upper Ball Joint 1988-1998 C & K Series 2500/3500 Trucks
This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.
Select your truck to continue
Ships directly from the supplier. The final shipping cost will be shown before payment.
- Ships from Kryptonite Products
Fits:1989-2000 Chevrolet / GMC C2500 / C35001988-2000 Chevrolet / GMC K2500 / K35001992-1999 Chevrolet / GMC K2500 Suburban1996-2002 Chevrolet Express / GMC Savana 2500 / 3500 2WDImportant Fitment Details:Does not fit 1500 pickup trucks or SUVs.
Features:
Heavy-Duty Engineered Design Built specifically for the extreme demands of HD GM trucks, whether stock, leveled, or lifted.Forged High-Strength Housing Optimized HD forging increases articulation and provides added clearance to prevent binding at full suspension travel.Heat-Treated Chromoly Ball Stud Significantly stronger than factory studs and highly resistant to bending under heavy loads.Metal-on-Metal Internal Design Eliminates weak factory-style internals for long-term durability in towing, off-road, and high-load applications.Powdered-Metal Internal Races Designed for extreme wear resistance and consistent performance over the life of the joint.Coil-Spring Preload System Maintains consistent internal tension as the suspension cycles, reducing looseness and extending service life.Premium Class 10.9 Hardware Includes Kryptonite-supplied high-strength mounting hardware for secure, reliable installation.Greaseable Service Design Pre-greased with Chevron Ultra EP2 grease and serviceable every 5,0007,000 miles.Bolt-In Installation Installs into the factory control arms using provided grade 8 hardware.Corrosion-Resistant Finishes Black E-coat housing with a gold zinc-plated cap for long-term corrosion protection and a premium appearance.Description:The Kryptonite KR6344 Bolt-In Upper Ball Joint represents the latest evolution of Kryptonite’s ball joint design. Improving not only on factory components, but even on previous Kryptonite generations. Every aspect of this joint was engineered to survive the demands of lifted trucks, oversized tires, aggressive alignment settings, and real-world abuse.A massive chromoly stud, powdered-metal races, and a metal-on-metal internal design work together to deliver unmatched strength and articulation. The coil-spring compression system maintains consistent preload throughout suspension travel, reducing looseness and extending service life even under extreme conditions.Finished with a corrosion-resistant gold zinc cap and protected by a thick rubber boot, the KR6344 is built for longevity, performance, and reliability. Whether you’re daily driving, towing, or pushing your truck off-road, this is a true heavy-duty upgrade over stock and aftermarket alternatives.Upon install, these ball joints will require 4-6 pumps of grease. Going forward, the recommended service interval is about a half pump every 5,000–7,000 miles. Think of grease like blood in your body: without it, nothing survives. The boots are to keep dust and debris out and not to hold grease in so be careful not to over-grease.
Includes:
1 x Bolt-in Ball Joint4 x 8mm Grade 10.9 Flanged Bolts4 x 8mm Grade 10.9 Flanged NutsWarranty:(Kryptonite No Fine Print Lifetime Warranty)Kryptonite Steering & Suspension components are warrantied for life to their original purchaser. This warranty covers manufacturer defects, premature wear, or breakage. Race it, jump it, off?road it, wreck it, lift it—we don’t care. If you can break it, we’ll replace it.Your Kryptonite products must be purchased through an Authorized Dealer, and Warranty Registration completed within 90 days of purchase.
Fits:1989-2000 Chevrolet / GMC C2500 / C35001988-2000 Chevrolet / GMC K2500 / K35001992-1999 Chevrolet / GMC K2500 Suburban1996-2002 Chevrolet Express / GMC Savana 2500 / 3500 2WDImportant Fitment Details:Does not fit 1500 pickup trucks or SUVs.
Features:
Heavy-Duty Engineered Design Built specifically for the extreme demands of HD GM trucks, whether stock, leveled, or lifted.Forged High-Strength Housing Optimized HD forging increases articulation and provides added clearance to prevent binding at full suspension travel.Heat-Treated Chromoly Ball Stud Significantly stronger than factory studs and highly resistant to bending under heavy loads.Metal-on-Metal Internal Design Eliminates weak factory-style internals for long-term durability in towing, off-road, and high-load applications.Powdered-Metal Internal Races Designed for extreme wear resistance and consistent performance over the life of the joint.Coil-Spring Preload System Maintains consistent internal tension as the suspension cycles, reducing looseness and extending service life.Premium Class 10.9 Hardware Includes Kryptonite-supplied high-strength mounting hardware for secure, reliable installation.Greaseable Service Design Pre-greased with Chevron Ultra EP2 grease and serviceable every 5,0007,000 miles.Bolt-In Installation Installs into the factory control arms using provided grade 8 hardware.Corrosion-Resistant Finishes Black E-coat housing with a gold zinc-plated cap for long-term corrosion protection and a premium appearance.Description:The Kryptonite KR6344 Bolt-In Upper Ball Joint represents the latest evolution of Kryptonite’s ball joint design. Improving not only on factory components, but even on previous Kryptonite generations. Every aspect of this joint was engineered to survive the demands of lifted trucks, oversized tires, aggressive alignment settings, and real-world abuse.A massive chromoly stud, powdered-metal races, and a metal-on-metal internal design work together to deliver unmatched strength and articulation. The coil-spring compression system maintains consistent preload throughout suspension travel, reducing looseness and extending service life even under extreme conditions.Finished with a corrosion-resistant gold zinc cap and protected by a thick rubber boot, the KR6344 is built for longevity, performance, and reliability. Whether you’re daily driving, towing, or pushing your truck off-road, this is a true heavy-duty upgrade over stock and aftermarket alternatives.Upon install, these ball joints will require 4-6 pumps of grease. Going forward, the recommended service interval is about a half pump every 5,000–7,000 miles. Think of grease like blood in your body: without it, nothing survives. The boots are to keep dust and debris out and not to hold grease in so be careful not to over-grease.
Includes:
1 x Bolt-in Ball Joint4 x 8mm Grade 10.9 Flanged Bolts4 x 8mm Grade 10.9 Flanged NutsWarranty:(Kryptonite No Fine Print Lifetime Warranty)Kryptonite Steering & Suspension components are warrantied for life to their original purchaser. This warranty covers manufacturer defects, premature wear, or breakage. Race it, jump it, off?road it, wreck it, lift it—we don’t care. If you can break it, we’ll replace it.Your Kryptonite products must be purchased through an Authorized Dealer, and Warranty Registration completed within 90 days of purchase.
HSP offers a limited lifetime warranty to the original purchaser on eligible HSP products. Underhood powder coating has separate two-year limited coverage. Non-HSP brands follow their own manufacturer warranties. Discontinued products and customer/installer damage are excluded. Claim authorization is required; customer pays inbound shipping for ordinary claims.
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
HSP Diesel warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Professional installation is recommended.
- Return eligibility
- HSP states returns must be postmarked within 30 days of purchase, new and unused with original tags and packaging, with an approved RMA. A 15% restocking fee and customer-paid return shipping apply. Special orders, non-HSP dropship products, apparel, used items and custom colors are excluded. Based on what HSP Diesel offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- HSP Diesel
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- HSP Diesel
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.