The Unisteer steering shaft installed easiest from the bottom for us. On non-collapsible columns, it may be necessary to keep the column mounts loose to finagle the shaft and universal joints into place. For collapsible cars, the shaft itself can be slid to accommodate. Ours required more length than the original 1.75-inch recommendation to connect with the Unisteer shaft. Also, note the tons of clearance provided by the Hooker headers; these are the recommended headers for the Unisteer conversion.