SSBC-USA B8-Barbarian Big Brake Bundle 2011-2019 Chevy/GMC 2500/3500 DRW/SRW [Front Brake Kit] Bumper Spacer No it is not necessary

No it is not necessary since the OEM upper arms are already designed to run at this height

B8 Control Arms are a direct fit upgrade for factory upper control arms on trucks and SUVs

With faster turbo spool-up

Requires frame bracket modification and minor welding

Less restriction means more airflow

SSBC-USA B8-Barbarian Big Brake Bundle 2011-2019 Chevy/GMC 2500/3500 DRW/SRW [Front Brake Kit] Bumper Spacer No it is not necessaryHighlights: Made In The USA, direct fit, 8 piston machined billet aluminum calipers, DDS rotors, stainless steel pistons, fits behind factory wheels, uses stock rotors, 2013 2019 Chevy GMC 2500 3500. Custom colors and finishes available to match your truck build. You need a brake thats built as tough as your Chevy GMC 2500 3500. The 8 piston, heavy duty B8 Barbarian Brake Caliper Upgrade Kit from SSBC USA gives your Chevy GMC 2500 3500 truck the