250's are easy to lift, leaf springs in all four corners. although leaf springs over the TTB is a god awful combination. if you can, try to make the rear lift all spring, i.e. avoid the use of blocks if at all possible. the front should install almost exactly like the rear, just unbolt from the cross member and shackles and install your new springs into the proper mounting surfaces and attach the ubolts from the TTB. the rear is even easier. make sure you have proper tools to use, such as a heavy duty floor jack (2 1/2-3 ton) and jackstands. take your time. it might get kinda frustrating when you have to install the dropped pivot brackets on the engine cross member, but just take your time and measure alot before you start drilling