1970 Jimmy front leaf arch

[vancelot69]

Which direction are the front leafs supposed to be mounted on a 1970 Jimmy? Arch up (like an 'n'), or arch down (like a 'u')? And, do the ends go up or down, like o_ or o-

I'm asking because the front leafs on my truck are arch up like a 'n' and the ends are connected facing up like o_, so does that mean my front leafs are shot?

My neighbor says they should be arch down like a 'u', but flipping my leafs would also flip the ends to o-. My rear leafs, and the exploded view in the LMC catalog, have the ends like o_ and arch down like a 'u'.

Thanks in advance.