Autofab coil spring adjuster kit. Make your coils adjustable with this slick weight jack item. Allows you to fine-tune the ride height which can greatly help with final alignments on Ford trucks. Designed for the Ford D shape top coil winding. Allows for 1.5″ of adjustment. Threaded push rod is 1.5″ diameter thread. The kit is for D shape top loop coil springs commonly used on Ford or Bronco trucks.