this is the only person on this thread so far who knows what he's talking about12 Volt Man;2524887; said:I would not worry.
reason is its only since the mid to late 90's that tanks were built with the braces.
they were designed that way. its likely just an older tank.
my 90 and 65 were purchased in 93, had no center braces and ran straight for 15 years..
just make sure the silicone is still good (perhaps reseal) and you are good to go.
this is the only person on this thread so far who knows what he's talking about