Low Gear Set

Im not sure if my 904 came with it (highly doubtful), so I am looking for a set.
2:74 1st gear, 1:54 2nd gear, 1:1 3rd gear

Look for a Diplomat cop car or taxi with a 2.2:1 rear. They came factory with the 2.77:1 first gear. I put one in my Dart with a 3.55 rear and it launched like it had 4.11's but still streetable gears.