ProForged Greasable Idler Arm OE Style Steel Black Paint - GM A-Body 1964-72 Turnlock Fastener Washer Many of their parts are

Many of their parts are made from lightweight aluminum

3" x 16" Coil-over Springs

Cylinder Head Porting Kit

753 lbs/in Rate - 127% Stiffer than Factory Sway Bar

ProForged Greasable Idler Arm OE Style Steel Black Paint - GM A-Body 1964-72 Turnlock Fastener Washer Many of their parts areProduct Description: Idler Arm Greasable OE Style Steel Black Paint GM A Body 1964 72 Sold Individually ProForged new products are designed using the latest CAD programs and prototypes are validated through hardness testing, microstructure analysis, surface finish examination, and roundness testing. We ensure application suitability through extensive tensile and elasticity strength testing, stud pullout testing, stud impact testing, salt spray tests,