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Proforged Upper Ball Joint for Mazda MX5 NA

2 Reviews


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These ball joints are manufactured by what we consider to be the best in the industry, Proforged. They’re serviceable with a grease nipple and will more than likely outlast the arm you choose to press them into.


The world’s finest ball joints from the name you trust – Proforged. Laboratory tested and proven in the real world, our ball joints feature improved design over the competition for increased longevity and durability, even in the most demanding conditions. Proforged Ball Joints generally utilize forged SAE4140 steel for the ball stud and forged SAE1045 for the housings, a combination that yields incredible strength and toughness. Proforged ball joints are available for nearly every year, make, and model vehicle found on the road today.


  • SAE1045 forged steeling housings
  • Ball studs forged from ultra-strong SAE4140 chromoly steel
  • Ring-retained, accordion-style boot
  • CNC-milled fit surfaces

Note – There is a difference between the MK2 / NB upper control arms and the NA arms, these ball joints won’t fit.


Weight 0.300 kg
Dimensions 7.5 × 5 × 5 cm


2 reviews for Proforged Upper Ball Joint for Mazda MX5 NA

  1. nvankoert (verified owner)

    Looks and feels like a real high quality US Made product. The finishing touch to my wishbone refresh.

  2. Rich (verified owner)

    Lovely quality and reassuring to know it’s backed by a fantastic warranty, similar price to the few alternatives out there but far superior quality

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We Can Install This For You

Alongside part sales, we also operate a workshop service to install and configure all the products we offer online.

For the past decade, we’ve been servicing, modifying and boosting our own MX-5s. What started as three guys in a shed has grown into a workshop full to the brim of MX-5 knowledge and passion, where no project is too big or service job too small.

If you’d like to book something in or have a chat about your build, give us a call on +44 (0) 203 795 0515 or send us an email at [email protected]