André Koopmann in Germany manufactures a replacement for the torn gaiters on Jack Knight rack and pinion units.
His have a metal center section, with silicone rubber outer gaiters. The shaped spacers are included in the kit.
contact via : morganwerkstatt@aol.com
I've found the "original" gaiters were thick on one end and thin on the other, and very hard to fit without tearing.
