73-87 1/2 ton 3/4 ton Chevy Squarebody 3" shackle reversal

Lift the rear of your truck 3" without using stiff lift springs or axle wrap causing lift blocks! Applications: 1973-1987 (also 88-91 some models) GMC Chevy K5, K10, K20, Suburban, Blazer, Jimmy, V1500, V2500   What is a shackle reversal? Currently the rear of your truck has a tension style shackle hanger (shackle points towards sky). Our shackle reversal replaces that stock bracket with a much stronger bracket that points the shackle towards the ground creating lift. Everything else about how your truck rides is kept the same! Why 3" reversal? 3" gives you way more options to match the front lift of your truck. For example typically with blazers and suburban's they sit about an inch low in the back. If you use a 2" lift spring in the front and our 3" reversal in the rear it will sit about perfect! Of course you can use different combinations of springs to match your front lift like you could pair the 3" reversal with a 3" lift spring to get a total of 6" of lift at a soft