301517 - 1978-1988 GM G-Body Lower Control Arm & Adj Upper Control Arm Kit Miata These are perfectly fine for

These are perfectly fine for regular driving

consistent behavior

and a 4140 chrome moly 1

The 4140 chrome moly spherical ball and delrin race provide wear resistance and durability

Compatible with all OEM diameter factory and aftermarket (lowering) springs for 5th Gen Camaro as well as all coilover spring sizes (2

301517 - 1978-1988 GM G-Body Lower Control Arm & Adj Upper Control Arm Kit Miata These are perfectly fine forThis kit includes (1) set of our tubular lower control arms and (1) set of our on car adjustable upper control arms, "Ultimate Arms". Both items are direct replacements of the OEM set up adding strength, ride improvement and most importantly, rear end adjustment. Kit Includes: 1 Set Tubular Lower Control Arms Item # 3015 1 Set Adjustable Upper Control Arms Item # 3017 Installation: Complete kit includes detailed installation instructions, uses OEM