3 t d 7

Looking at a couple of 3 T measured the rails #1 has a rail hight of 4 1/8 in. and 8 1/8 in. from center of pin to center of pin # 2 is 4 1/4 high and 8 1/8 on the pins Any one have a wear chart or info on these ? The link # on # 2 is Sealed Link 1S1864 if there is info post hear some help finding it would be good Thanks for your time MTMike

For that link number the rail height is 4.63 in. new & 4.25 in. 100% worn

Need to measure chain stretched over 5 pins & 4 links.
New is 31.98 in. 100% worn at 32.46 in.