Ended up installing tubular upper and lower control arms with 2” drop springs in front and 3” drop springs in the rear with tubular upper and lower control arms as well. Also added 1.25” sway bar in front and 1” sway bar in the rear. All UMI products. It is so low I had to remove the long tube headers and go with stock exhaust manifolds to tuck it close with 3” exhaust back to 2 spintech 3000 mufflers turned down in front of the rear axle(it is loud). At the same time did a Muncie 4 speed conversion. Everything was done by Jamie Mckevlin of Jamie’s Performance and Repair in Sacshe Tx. He and Josh do great work! Only place I will take my Buick in the Dallas area.