Help me confirm my measurements and back spacing thought

I found a 14x5 1/2" mopar rim just to give me an idea of spacing. It has 3 3/4" backspace and it leaves me 3 1/4" to the spring. So with a 5 1/2" backspace and the 1" for the tire will leave 3/8" to the spring. If I understand this all. Using a level on the front of the rim and measureing to the front lip leaves me 2".