1968 Barracuda back space question

Treblig, 3" bs? those are huge.
I believe they were 3 3/4" BS (I'd have to check??) but I did have to move the springs with the offset shackles. I was going for the 60s street car look. Some FABO members don't like the "jacked-up" look but after crawling under cars for 60 years it really gets old having to get the jack out just to look under the car much less having to work under the car??
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Treblig