Why only one?

[khodne]

I am wondering why there is a heat shield only on the passenger side on the gas tank?

[b5blue]

Probably for factory single exhaust pipe...single tailpipe would be hotter than duals. 

[charger Downunder]

That aint no heat shield.
This is what it is.
Bracket fuel tank side restraint charger PN 3404697.
From the factory parts book can be located at 14-86-27
One wasnt needed on the other side of the tank as the filler will stop it moving that way.

[tan top]

good info CDU  ,  
                     
, i always thought it was something to do with ecs pipes on 70 California cars , some type of shielding  , now i know  

[khodne]

Very good, I had no idea what this was for.  It isn't on my dad's R/T.

[maxwellwedge]

My 70 R/T didn't have one either but it could have been removed earlier in its life - for what ever reason.