I'd hate to cut and turn coils. I would think that it is a lot more difficult than a leaf cut n turn. You could probably get away with adjustable links to set pinion angle if it's not a killer angle that wants to pop the spring out. If you have extra sections of frame, it wouldn't be too bad to extend it, IMO. Just plasma out some fishplate and weld it up.well let me ask you, whats more work, extending the chassis or cutting and turning the rear diff? bear in mind this is a linked coil rear end