4 inch lift and drivelines.

[Dwaynes56&68]

What luck I have. I bought Tuff country 4 inch easy rides front and rear for my 78 shorty. Now, my stock springs were collapsed a bit from age but not to bad. But the new springs jacked me up 7 1/2 inches. My drive shaft in the front will not rotate without binding and the rear has about 1/2 of splines showing out of the slip yoke. Anyone else have to modify there drivelines with a 4 inch lift? I even double checked the part numbers, they are 4 inch springs. This blows.....