Harold, You took the question right out of my fingers, I was going to ask the same thing. Does seem strange that only one side used it, even if it had something to do with auto tranny cooling lines. That surely wouldnt explain ii if you had a standard tranny, unless it was for keeping cost down for a couple of pennies and keeping an all around standard set up.
Bingo! Remember this setup was also for Camaro's (and maybe 2nd Gen Nova's?). Same radiator support.
More reinforcement to support the fixed passenger side for the tranny lines:
If that side was rubber based, it would transfer vibration to the radiator and possible crack the tranny line connection points. At first I was just thinking about trying to avoid expansion movements.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI
