Adjustment ranges from OE baseline:
1. Lateral links +/- 15 mm
2. Leading/trailing arms +/-20 mm
3. Toe control arm +/- 15 mm

Recommended torque specs:
1. Eccentric cam bolts 63-75 ft-lb
2. Rear Upper Lateral Link, joint side bolt 48-57 ft-lb
3. All other u-bracket and joint bolts 49-59 ft-lb

Circuit Sports Adjustable Rear Upper Leading Arm is a direct replacement of the Mazda MX-5 Miata (ND) factory link: part #N243-28-20X. Our arm uses Teflon-lined spherical (pillow ball) Heim joints with steel spacers as well as high tensile strength carbon steel u-brackets to ensure that each arm is made for high quality as well as increased strength, precision, and longevity. Each part retains the qualities of the OEM unit but is designed on improving strength and allow for increased adjust ability in fine tuning. The body of the tubular arms are finished off in our signature Circuit Sports high-gloss blue powdercoat to help resist against rust, damage, stain and oxidation.