Rossroams
Full Access Member
So I lifted the 87 6.9 two inches with tuff country springs and drop brackets. The lift actually seems to be around 3.5" raising the front from 5.5-6" to 9-10" from the top of the tire to wheel well. So now it seems I'm about level if not slightly above the rear. So while looking for blocks I saw the "Readylift" 4" replacement block for super duty trucks. It looks to be the exact block, just 2" higher than my factory 2" block. So are the superduty and OBS blocks interchangeable?