SPC Performance 63-70 Chevrolet C10 Adjustable Upper Control Arms turn14-atp the Borg Warner S358 turbos

the Borg Warner S358 turbos give quick spool-up with no surging

+-3deg camber adjustment (when using all 3 arms)

even under the most extreme loads

No shuttle shifting problems

Weather-resistant bulkhead and side rail seals

SPC Performance 63-70 Chevrolet C10 Adjustable Upper Control Arms turn14-atp the Borg Warner S358 turbosMarket Description This unique, patented design provides the most adjustability and best clearance of any arm available for the popular '63 '70 GM C10 applications. Sold as a pair, these forged steel adjustable arms come with ball studs that are 1 2" taller than stock to improve camber curve. Dial in some caster combined with the ability to adjust camber, yields a truly 'modern' feeling suspension. The ball joints are greaseable and fully rebuildable.