EM This is the part I'm looking for. It attaches to the grill/radiator support curves under the bottom of the fender, then attaches to the outer edge of the wheel well.

As far as I know they are the same for either side.

6522695-37Fenderbrace.JPG (504 downloads)

1957 Plymouth (Hemi, Dual Quads, A833 4 Speed 9 1/4 w 4.10) Sold
1937 Dodge Pickup (Hemi, 6X2 intake, 46RH, Dana 60 w 4.56) Sold
1968 Plymouth Valiant 2dr sedan (354 HEMI, 46RH w/4.30 gears)