1963-72 Chevy Rear Block Kit 5order Air Lift 1000 HD™ provides

Air Lift 1000 HD™ provides the greatest support of any coil-spring insert air spring available

The bearing where the short front drive shaft and the longer back drive shaft connect

Mercury Marquis and 1982 to 1989 Lincoln Town Car model

Recon Accessories 264118BK

1963-72 Chevy Rear Block Kit 5order Air Lift 1000 HD™ provides1963 72 Chevy Rear Block Kit Priced As Pair Easy Install Instructions Yes. Allows adjustment from 3 8 inch to 1 and 1 8 inch drop in 3 8 inch increments. They fit in between the axle and trailing arms, think of them like adjustable lowering blocks. Longer U bolts let you stack the shims to get your desired ride height! You can even fine tune out the lean that some trucks have! Complete with new U bolts Commonly known as Universal Lowering Blocks,