Personally not something I would do knowing the car’s handling could be compromised if the springs were unbalanced. Other may have a different opinion. Changing the springs is the normal route. If you were to shim and lower one side you would need a shim with an axle locating dowel pin/hole and a longer u bolt. I would ask the experts at Mulfab and seek their advice. They sell the lowering blocks/shims, U bolts and good quality springs.
