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While MOOG greaseable parts come greased from the factory, they should also be greased at the time of installation. After installation, MOOG recommends greasing these parts at each oil change for the best service life.
Out of grease? No problem we've got you covered with this Mystik Multi-Purpose Grease tube refill.
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Moog fulfills their warranty through their individual dealers. That means that in order to receive warranty support, you will have to refer back to the original dealer you purchased the part from. Be sure to check the dealer's warranty support before you buy the part to make sure that they will properly support the warranty. If a dealer will only refer you back to the manufacturer in order to receive warranty support, then you may not actually have any warranty at all.
Part of our warranty process includes reviewing evidence of the defect provided by the customer. This is easily accomplished by providing video or images of the defective part so our staff can verify the claim and move forward with the warranty process. This removes the necessity of shipping the part back to our facility at the customer's expense.
WARRANTY:
Moog Premium Steering Components carry a Limited Lifetime Warranty. Moog R-Series Control Arms, Hub Assemblies, and Knuckle Assemblies carry a 3 Year or 36,000 mile Warranty (whichever occurs first). Above warranties are based on customers who own a car, van, SUV or light truck (less than 8,000 lbs. or 3,625 kilograms).
Moog warranties their parts to be free of defects in materials and/or workmanship during these timeframes as measured from the date of purchase.
If a Moog part should fail due to materials or manufacturing defect while under warranty, we will provide a replacement of the part upon return of the defective part.
Wearable RUBBER parts are not covered under warranty (Dust boots, bushings, bump stops, etc.)
Front Lower Ball Joint | '67'-69 Camaro, '64-'72 GTO

Feature Rich
Keep your classic 1964-1972 Pontiac GTO cruising on down the road with the help of Moog's K5103 front lower ball joint. A Problem Solver ball joint is packed with features like a heat treated stud, Belleville washer, integral dust boot, and a greaseable design to give you the confidence you're selecting the best ball joint for your pride and joy.
Restored Connection
A car that was manufactured before cell phones were available is likely going to have a few older parts on it that need some TLC. Worn parts like control arms and ball joints with loose tolerances make noises and create a terrible experience as your suspension is allowed to move in ways it shouldn't. Make sure your car receives the love it deserves and improve your ride with a high quality ball joint from Moog.


Front End Refresh
Constantly directing thousands of pounds of vintage Detroit muscle around corner after corner can take its toll on your suspension. As you corner and brake your car's momentum shifts large amounts of weight to each side and forward, which increases the wear and tear on your lower ball joints. Refresh your Camaro or GTO's suspension with a new ball joint from Moog that is built tough and ready to work.
Long Lasting Tires
The precise tolerances found inside a Moog ball joint are excellent at accurately maintaining your alignment settings for better handling and longer lasting tires. Don't let worn out ball joints be responsible for developing uneven tire wear on your car that ruins more than your weekend adventure. Lock in your front end alignment with a new Moog ball joint and extend the life of your tires.


Product Reviews for Front Lower Ball Joint | '67'-69 Camaro '64-'72 GTO
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MOOG moog-k5103
starstarstarstarstar" Review 2 Years Later "
Works as expected!
verified_user Verified Buyer - Daniel J Putt - . MOOG moog-k5103 - 5 out of 5starstarstarstarstar" Very good "
I put them in my 68 Chevelle they work great. I only use Moog ball joints.
verified_user Verified Buyer - Gregg Blomquist - . MOOG moog-k5103 - 5 out of 5starstarstarstarstar" Very good "
I put them in my 68 Chevelle they work great. I only use Moog ball joints.
verified_user Verified Buyer - Gregg Blomquist - . MOOG moog-k5103 - 5 out of 5starstarstarstarstar" Review 2 Years Later "
Holding up fine \nAlthough this is not a car which gets driven daily\n
verified_user Verified Buyer - john elliott - . MOOG moog-k5103 - 5 out of 5question_answer Customer Questions and Answers
- Question:
- The size of the ball joint where it enters the lower control arm , is the 2.010 diameter on the inside or the outside of the knurled part?
- Answer:
- 2.310 inches would be the OD of the knurling on the ball joint.
- Question:
- I need the diameter of the ball joint body portion area that presses into the A Frame ?
- Answer:
- moog-k5103 OD of the body of the ball joint is 2.310 inches.
- Question:
- What are the dimensions for part K5103?
- Answer:
- Measurements are: OD =2.310 in Height = 3.660 in ID = 2.010 in Length = 3.660 in Stud Taper Per Foot = 0.047in Stud Thread = 0.562-18in
- Question:
- Can I order the dust boots only from part number k5103?
- Answer:
- No, Moog does not sell their dust boots separately from their parts. However, there is a polyurethane replacement option, https://www.suspension.com/universal-dust-boots.asp
- Question:
- What is the stud taper on part number k5103?
- Answer:
- Moog does not show their dimensions for ball joints. Call Moog tech support 800-325-8886.
- Question:
- What is the base OD dimensions of the K5103 ball joint?
- Answer:
- The base OD of k5103 is 2.310 inches.