As I start to increase HP in my Vette what are the weak links going to be?
Some of this depends on usage. The first item to show weakness is usually the clutch on six speeds. As horsepower increases, the stock tires will also become hard to hold. For drag racers there is an axle shaft in the differential that is common to break, that is why you often see high horsepower cars with “hardened output shaft” in their mods list. Another common problem, particularly for drag racers with big power, is actually snapping the entire rear housing off the transmission on hard launches. We combat this problem by using a brace that ties the rear and tranmission together giving these assemblies increased rigidity for drag and high horsepower abuse.