Dipaco DTech DT660032 Injector High Pressure #3 / #6 Fuel Line 01-04 6.6L GM Duramax LB7 BD-1050340-WSP While the stock shaft is

While the stock shaft is typically adequate with a stock torque converter

The high-temp wrinkle-black powder-coating also insulates the tubes from engine heat and protects the tube from corrosion

allowing more available fuel

and the problem is only exacerbated

Dipaco DTech DT660032 Injector High Pressure #3 / #6 Fuel Line 01-04 6.6L GM Duramax LB7 BD-1050340-WSP While the stock shaft isWhen it comes time to replace the injectors in your LB7 Duramax, it is absolutely imperative to also replace the injector lines as they typically contain contaminants that will destroy your newly replaced injectors. Most injector rebuilders or manufacturers will not warranty their injectors if you do not replace the lines at the same time. This direct replacement line will fit both the #3 as well as #6 cylinder.