I found that the plastic snubbers were worn and wouldn't let the gear and rack fit correctly together... thus the teeth on the gear were rounded off ... and the teeth on the rack were worn.... and my gear was 3/4" wide and the rack was 1/2" wide.. I went to a local bearing house and purchased 2 new racks... which are 3/4" wide.. now 50% more contact.. I had to order to more gears from the slide manufacturer... and than sat down with a friend we designed a spring loaded system to keep the gear engaged into the rack correctly.... now 3 years later the gear/rack look new...
it was simple to find the rack, cut to length and grind off the welds on the old one and weld in the new one... from what I was told the only other option was to pull the slide(remove) and replace the tube and rack as an assemble...
BTW the dealer only wanted to replace parts... I did the repair with the slide out and feel my repair is much better than the OEM installation..
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Retired Business Owner, Re-manufacturing HD Clutches, Brake Shoes, Air Compressors, Sales & Installation of PacBrake and other Industrial Friction
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