Check the listing for details. 4036 Coil Spring Clamp Set. Condition: New. Listed at 49.98 USD. Removes and installs coil springs where removal through the center of the spring is not possibleServices both Straight & Curved Coil SpringsIncludes S-bolts & wing nutsMaximum diameter spring that the hooks will accommodate is 0.75".Diameter of the rod: 5/8" INSTRUCTIONS FOR STRAIGHT COIL SPRINGS:Install 3 leg assemblies evenly around the spring. Turn nuts finger-tight to hold in position.Install one S-bolt near the center of each leg with open end pointing away from the spring. Place the bar and wing nuts on the S-bolt, then finger-tighten the wing nuts.Tighten each leg nut a little at a time to compress spring gradually. Do not over-compress.To release the compressor, loosen each leg nut a little at a time. INSTRUCTIONS FOR CURVED COIL SPRINGS:With the car raised and safely supported, place a jack under the lower control arm. Raising the jack will compress the spring.Install as many leg assemblies and safety S-bolts as possible (see #1 & #2 above), then finger-tighten the leg nuts.Disconnect the lower control arm bolts, then slowly lower the jack until the spring can be removed. The curved contour will remain.To install a new coil spring, use one or more legs and S-bolts to produce the necessary curve. NOTE: Keep the threaded portion of the legs clean and well greased.