I haven’t measured it. I just bought it from a family member who insists it was an Iron Rock 4 inch lift. I agree with you, it looks like a 2 1/2” to me. I don’t have his paperwork but I’m inclined to believe him. I’d have bought it either way. No reason not to tell me if it wasn’t a 4 inch, and I do trust him. But I agree. It sure doesn’t look like 4 inches to me either . In any event, it will handle 35s and you have the look I want ( coincidentally in the same color) l. You kinda confirmed that the mats would be too noisy.
Just gotta pick a good AT. Thanks.