Im going to be doing the Trail gear 5" SAS on my 91 pickup very soon and i need help with making the rear level with the front simply because i cannot afford to install the trail gear rear lift right now. That can be done later on.. But for the time being i need help with reaching 7" of lift in the rear. My truck is currently lifted with the Rough Country 4" ifs kit so i do have a 4" block in the rear. Could i go with a 2" add a leaf and 1" lift shackle?

 

Go that route.