Can I use extended shackles to increase ride height further?
A. This is not recommended for several reasons. You could make the truck unstable and you could run into problems with drive line geometry. Also you will increase the distance between the axle and the bump stop which could overstress your springs in maximum compression. The only time extended shackles can be used is on Military Land Rovers which have offset rims to improve stability and axle buffers which are fitted lower to prevent the springs becoming overstressed.