In 1988 (around VIN 24500) the steering rack was modified. Prior to this VIN all racks had rectangular mounting feet. From this VIN onwards all racks had rounded mounting feet. The later racks were then supplied by Bentley to fit the earlier models, albeit with a modified lower steering column and a set of brackets that fit between the rack and the subframe.
We still supply reconditioned racks as per their original fittings so if you are ordering a steering rack for a car prior to VIN 24500 please ensure that it has the original rectangular feet.