[Southcity]

A quick and very "non-scientific" measurement on my 66 K10 Suburban seems to indicate a very slight un-levelness where rear end sits a bit higher than front (stock suspension). Worth mentioning, the wheel wells on the K10 Suburban are such that the front is much larger than the rear, so it tricks the eye and makes it appear that the front is higher. A level on the front fender indicates almost level, a very very slight lean that favors the front being just "slightly" lower than rear.