It will work with or without those springs... they are there to keep the disc from rattling or beating against the driver pins.... as long as the disc and driver pins are a tight fit it doesn't rattle too much without the springs.. but as the holes wear a bit it will begin to rattle if you don't have the springs..
glad you found the issue 
__________________
Jay
40 years of Using and playing with IH Cub Cadets!
Proud owner of the following:
Cub Farmall, Super A Farmall, Original, (2)70's, 72, 100, 102, 123, 105, 125, 127, 108, 128, 1450, (3)782's, Yellow 982, 1782, "Sam's" 2182, M Farmall and a #7 trailer
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