The way @younggun2.0 did it is super clean, but you don’t need to section them into the frame rails like that. Even just mounting them to the bottom of the frame rails will lower the car vs. the stock shackle set up. When I did mine it lowered the car about 3/8”, and mine are just mounted to the bottom.
You could just plate that area and add some threaded inserts so they bolted right up!
Also, we both used AFCO sliders that don’t have a built in angle. The Calvert version has some angle built in, which is better for tracking the movement of the spring.
