Quote:
Originally Posted by Andy
I have never worked on a Merc box so bear with me. I think they are probably like 55-up Chevies and then Mustang boxes.There should be a secrw in a pressed steel cover that sets the gear engagement and also holds the sector shaft down into the worm assy. With that much play, I suspect your adjustment screw has loosened and fallen out. See if there is a hole in your top cover.
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Andy:
Thanks for your response.
The adjustment screw controls a "cage" that holds the head of the sector shaft/pivot roller. The screw moves the cage up and down to adjust the roller's interference with the worm. The adjustment screw is in place and the box is adjusted to provide resistance at center and decreasing resistance as you turn the wheels to either side.