Part #: (75-51SUS096)
Starting from $14.00
The sleeve nut is an extended nut that grips the threads and the taper to help strengthen the weak point on a LSR rack end. Any low point in a machined piece will be the weakest point of the part. Though the LSR rack ends are stronger than stock this just adds extra protection. Sleeve nut is sold individually and is made from steel and zinc coated for corrosion prevention.
They will help on the OEM rack end, but not as much as the LSR rack end, as they are machined specifically for the LSR rack end.