This is just one of probably 14 that I will need to replace. These are non-tilt and I would like any installation materials available. Thank you

Hello there!

Thanks for reaching out to us. This looks to match the S351-25 or S390-25 with the 2420 stamp option. The difference between these two parts is the depth of the bottom shoe. Measure as shown below and see which one is the better match. 

Comparison of the S351 and S390 balance shoes.