Finally, a reliable neutral safety switch (NSS) module for 6L80 / 6L90 / 8L90 swap applications!

This neutral safety switch module allows starting of engine in park or neutral only. No crank in reverse or drive gears.

If ordered alongside a new Speartech harness build, the module is plug and play only requiring you to tie a single wire into your vehicle's ignition switch "start/crank" wire.

This will work with just about any LS / LT standalone swap harness - we include an easy hook up instruction sheet with the neutral safety switch, label every wire, and include quick disconnect pigtails for an easy installation. This item is not compatible with GMPP Connect & Cruise packages.