Undersized brake boosters giving you a rock-hard pedal, leaky transmission coolers with cheap hose clamps, hacked-up factory dashboards for modern radios, and giant cowl hoods that completely block your view of the road. Welcome back to 21 Classic Muscle Car Upgrades You’ll REGRET – Part 2! from Gearhead Garage Inc [00:00]. In this no-nonsense breakdown of classic car modifications, we continue our countdown starting at #12 to highlight the mods and poor installation habits that ruin driveability, hurt resale value, and turn weekend cruisers into garage headaches
