Are there characters in which the radicals are the same but the position changes the meaning? Are there any characters in Chinese that have the same radicals in their formation, but the position of those radicals result in different meanings. 

e.g. A character made up of two radicals, AB, and another BA, that is also a valid character.

Traditional or Simplified is fine.
Same meaning:

崕 = 崖 (ㄧㄚˊ / yá) = cliff; precipice

峰 = 峯 (ㄈㄥ / fēng) = peak; summit

毗 = 毘 (ㄆㄧˊ / pí) = to adjoin; to border on

群 = 羣 (ㄑㄩㄣˊ / qún) = group; crowd

飃 = 飄 (ㄆㄧㄠ / piāo) = to float

鄰 = 隣 (ㄌㄧㄣˊ / lín) = neighbor; adjacent

Different meanings:

早 (ㄗㄠˇ / zǎo) = early; morning
旪 (ㄒㄧㄝˊ / xié) = 協 = agreement

吟 (ㄧㄣˊ / yín) = to chant; to recite
含 (ㄏㄢˊ / hán) = to contain; to keep in mouth

旱 (ㄏㄢˋ / hàn) = drought; dry
旰 (ㄍㄢˋ / gàn) = 傍晚 = sunset; dusk

岳 (ㄩㄝˋ/ yuè) = mountain; peak
岴 (ㄑㄩ/ qū) = 嶇 = rugged; rough

星 (ㄒㄧㄥ / xīng) = star
甠 (ㄑㄧㄥˊ / qíng) = 晴 = clear (weather)

啻 (ㄔˋ / chì) = only
啼 (ㄊㄧˊ / tí) = cry; crow

There are many many others.