Spohn Performance 640 Features:

Our rear upper control arm front frame mount for the 1959-1964 GM B-Body Impala, Biscayne and Bel Air is a direct replacement of the factory mount that attaches the rear upper control arm to the frame.
You can use our new mount to replace the factory mount when it is too corroded, or to use as a second mount when installing a four link (two rear upper control arms) set up into a factory three link (one rear upper control arm) car.
Our rear upper control arm front frame mount is precision CNC laser cut and formed from 3/16 in. steel and comes powder coated in gloss black for a brilliant and durable finish.
All necessary mounting hardware is included (Grade 8) to complete the installation, including new control arm mounting hardware.
Priced per Mount -- Qty. 1 = 1 Mount: You will need to verify whether your car has one or two rear upper control arms. All six cylinder and most small block cars were equipped with one rear upper control arm. Big block cars were equipped with two rear upper control arms.
Fitment Note : Fits 1959-1964 GM B-Body cars only.

• One piece CNC laser cut and formed 3/16 in. steel for maximum strength and durability
• Direct replacement of the factory mount that attaches the rear upper control arm to the frame
• Replaces the factory mount when it is too corroded, or to use as a second mount when installing a four link (two rear upper control arms) set up into a factory three link (one rear upper control arm) car
• All necessary mounting hardware is included (Grade 8) to complete the installation, including new control arm mounting hardware
• Powder coated for a brilliant and durable finish