This is a brand new Synergy Manufacturing Jeep Wrangler JK and Grand Cherokee WJ Heavy Duty Adjustable Front Ball Joint Kit.

We are an Authorized Dealer of Synergy Manufacturing and carry the full line of products.

Fits the following applications:

'07-'18 Jeep Wrangler JK 2 Door
'07-'18 Jeep Wrangler JK Unlimited 4 Door
'99-'04 Jeep Grand Cherokee WJ

Part #: 4127KN

Description:

After 5 years of development and over 100,000 test miles our Heavy Duty Adjustable Jeep JK Ball Joints are here! This is the last set of ball joints you will ever have to buy. Limited Lifetime Warranty. Tighten up your steering for good with our patent-pending (# 16/020894) design which is fully adjustable, serviceable, and rebuildable without having to press the ball joints back out of the axle end forging yokes (C's). These ball joints never have to come back out. Available in knurled and non-knurled versions to fit all vehicles regardless of what type of ball joints were installed previously. Lower ball joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized to make these the longest lasting, longest wearing ball joints on the market. Kit includes all 4 ball joints to service one Jeep and the adjuster tool for adjusting the preload on the lower ball joints.

Benefits:

Tightens sloppy steering
Designed to last the life of the vehicle
Never need to replace ball joints again
Best in class price/performance ratio
Limited Lifetime Warranty

Features:

Kit includes all 4 ball joints and lower ball joint adjuster tool
Patent Pending lower ball joints are adjustable so they always have the correct amount of preload
Knurled and non-knurled ball joint housing options to fit any vehicle
Lower ball joints are rebuildable on the vehicle without removal
Lower Ball Joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized for extreme wear resistance
Low profile dust boots are made from thick nitrobutile rubber (NBR) to protect the joint from contaminants and eliminate any chance of tearing
Zerk fittings included for trouble-free maintenance

Notes:

Synergy 4119 High Performance Grease recommended
Knurled ball joints required when replacing knurled ball joints that have enlarged the axle end forging bores
Non-Knurled ball joints recommended for replacing non-knurled ball joints
Compatible with RCV axle shafts

Limited Lifetime Warranty: 

For the original purchaser, this warranty covers defects in materials or workmanship of the ball joint for the lifetime of the joint. Ball Joints are wear items and normal wear of the ball joint is not subject to this Limited Lifetime Warranty. The wear items of the ball joint will periodically need to be replaced once the adjustment in the joint is used up and are available separately as a ball joint rebuild kit. Length of time between rebuilds is subject to the use and build of the vehicle.

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We appreciate your business. To make your shopping experience as simple and easy as possible, please refer to our company policies shown below.

Payment Information:

• We accept PayPal and all major credit cards using PayPal. 
• We accept PayPal eChecks. Just like a regular check, it usually takes between 3 and 5 business days for an eCheck to clear in our business PayPal account.
• For shipment to an Arizona address, we are required to collect 9.3% sales tax.
• We suggest immediate payment for all orders, but do allow 10 days from the date of purchase for payment to be received.
• If payment is not received within 10 days of the order being placed, an Unpaid Item Case will be opened.

Shipping Information:

• UPS Ground / FedEx Ground shipping is free to the lower 48 states, excluding Alaska, Hawaii, Puerto Rico, Guam, and all other U.S. territories.
• For international shipments, orders may be subject to additional duties, taxes, charges, fees, and costs associated with the shipment of the item once it has reached its destination. These charges are the buyer's responsibilty.
• Shipping is available to a PO box and any APO/AA/AE/AP address at an extra charge for this service when available.
• Most orders will ship within 1-3 business days from the time payment is received and cleared.
• Shipments are not made on weekends or holidays.
• Express shipping is available at the buyer's expense. Please contact us for a shipment quote to your location.
• Some out of stock items are drop shipped from a distribution warehouse or directly from the manufacturer, so tracking information may not be available immediately.
• Tracking numbers will be updated to as quickly as possible once an order has processed and shipped. Tracking numbers are updated manually, so please allow enough time for your information to be entered after your order has been placed.

Return Policy:

• AZ Offroad & Performance, Inc. & will do everything possible to ensure the customer's satisfaction.
• If there is any error in the part received, please contact us immediately.
• Returns will be accepted if the item is unused, uninstalled, in the original packaging and in brand new condition.  Items that are defective may also be returned.  We are not responsible for install mistakes.  Items must be returned within 30 days from the purchase date.
• All returns must be approved and issued a (Return Authorization) RA # for return.  The RA # must be on the outside of each package with the RA # in a visible area.  Any package without the RA # will be refused.
• Buyer is responsible for shipping charges on returned items and to insure the package.
• Returns may be subject to a 20% restocking fee. If any item is returned by choice that originally included free shipping (not a defective or performance claim), there will be a restocking fee deducted from the refund.
• Once items have been received & inspected per our guidelines, a credit or refund will be issued to the customer.
• Any cancellation must be approved prior to shipping.  Any item that has already shipped must be returned according to the guidelines stated above.