Mixed up my 273 rocker arms. Are they different?

RustyRatRod said
That tells me all I need to know. They are all the same.

Thank you. All have 308 stamped on one side and a W with mixed numbers on the other e.g W15, W4, W13 etc. So I thought I might be in for a bit of a bad day tomorrow lol.
You've made my night :lol: