Which early z bar is for a 273? (pics)

[bb66cuda]

I have these two different z bars that I believe are both early a and I'm trying to determine which is correct for my 273. Both are identical other than the extra tab with hole at the end.

 

[clifcuda65]

The one on the right side of your pictures (extra tab with hole at the end) is what came on my 1965 273 Commando 4 speed Barracuda ...

Clif of Az. :coffee2:

 

[bb66cuda]

The one on the right side of your pictures (extra tab with hole at the end) is what came on my 1965 273 Commando 4 speed Barracuda ...

Clif of Az. :coffee2:

Is there something that goes through that hole?

 

[66340SEDAN]

The one on the right side of your pictures (extra tab with hole at the end) is what came on my 1965 273 Commando 4 speed Barracuda ...

Clif of Az. :coffee2:

Correct

 

[66340SEDAN]

Is there something that goes through that hole?

I think maybe a spring? I have a Brewers one now so its different :burnout:

 

[396 Signet]

My 65 came with the one on the left. Don't know what the extra hole is for on the RH one.