6˝ Replacement Knuckle System - Superlift’s new replacement knuckle system complements our popular bracket style system we’ve offered for years.  Which is right for you?  For most people, the primary considerations are track width, lift height and tire size.  Track width is the measurement from outside of tire-to-outside of tire.  As with all HD series replacement knuckle style lifts, track width must be increased to gain wheel-to-knuckle clearance. Superlift’s knuckles increase track width a total of only 1.8˝ compared to as much as 3˝ with some competitors.  Included in the system are replacement knuckles yield the best possible alignment specs with minimal increase in track width, high clearance, one-piece crossmembers, and all other load-bearing bracketry, are laser cut from .25˝ thick plate steel.

A new differentail skid plate connects and strengthens the front / rear crossmembers while protecting the differential and kicker braces further increase overall rigidity. A brushed stainless steel skid plate is availible as an option.