SWB vs. LWB Front Bumper differences?

[TWJ]

Can anyone spell out the differences between a SWB front bumper (say '66) and a LWB Front Bumper (say a '72)? Are they interchangeable?

Thanks in advance!

[1QuickS]

Not interchangeable due to how they mount to the car. I know because I mounted a 72 front bumper to my SWB and it required fab work to create the mounting points. Besides the mounting points they are interchangeable.

[gsjohnson]

Paul is correct. The bumpers are the same, but the brackets are different.

[porwolf]

Here is a reference to early bumpers. There is also the issue of the 25 pound cast iron weights inside the 1967 and 1968 bumpers. Ask me how I know. I had once a '68T.

[TWJ]

Thanks everyone! That pretty much spells it out.

[rgofast]

There is also a difference at the fog light brackets. We installed a SWB front bumper on a 69 and the fog light brackets had to be modified as they hit the battery boxes before the bumper was aligned.