This Tuff Country brake proportioning valve kit relocate the factory proportioning valve when lifting your GMC Suburban.
1973-1991 GMC Suburban 2" Front Leaf Springs Tuff Country 18270
1969-1991 GMC Suburban Tuff Country SX6000 Shocks Front 62231
1969-1991 GMC Suburban 3" Rear Leaf Springs Tuff Country 19370
1973-1991 GMC Suburban 4" Front Leaf Springs Tuff Country 18471
1969-1991 GMC Suburban Tuff Country SX8000 Shocks Rear 61301
1969-1991 GMC Suburban 2" Add-a-Leafs Rear Tuff Country 81200