ReadyLIFT 2" Rear Block Kit 11-23 GM 2500HD / 3500 DS-WP60-S But for those that want

But for those that want more sound than the stock exhaust

Improve exhaust flow

resulting in a smooth and unimpeded airflow

5" diameter piggyback shocks at all corners

Includes all Piggyback features: Bump Zone and reservoir design for heat control and smooth performance

ReadyLIFT 2" Rear Block Kit 11-23 GM 2500HD / 3500 DS-WP60-S But for those that wantThis kit is available for two different applications. One kit is designed to work 2500HD's that did not come from the factory with the Trailer Package Rear Springs (upper overload springs). The other kit would be for 2500HD's that DID come from the factory with these springs, as well as 3500 applications. Based on OEM designs and never made out of light weight extrusions these 2" GM Blocks are made from cast iron just like the factory blocks, insuring