Here are the Rancho 0" shock specs

[tomp]

Like timgco said, longer shocks or travel may not gain you anything, depnding on on how the travel is offered. IE: longer body or longer extneded length?

Cranking TBs will cause early shock failure as the suspension will hang on the shock before it hits the control arm stop. The shock extensions correct this and give you back the travel you lost and eliminates basketball bounce effect.