Roots Bloody Roots Mystery Cache

*** The cache is NOT at posted coordinates ***

******** Do NOT go there *******

To find the location of this cache simply solve the puzzle below

This cache “Roots Bloody Roots” is cache #2 of 8 in a circuit hike series at Trexler Nature Preserve. This cache can certainly be done by itself if you are nearby or as part of the series.
Click on the link for the “Welcome to Trexler Nature Preserve cache page” for more info on parking, hints, and an ordered list of all eight caches in the series. .

Solve For Final: "Roots Bloody Roots"

N 40° 40.00A

W 075° 37.BCD

The Brazilian nu metal band Sepultura's best know song is also the name of this cache. Find the year this song was released and subtract 1989 to get "A".

In 1977 the first "Blockbuster" miniseries Roots aired on ABC-TV. Find the year Alex Haleys novel, Roots: The Saga of an American Family was first published and subtract 1643 to get "BCD".