Who knows Detroits? 4-53, 6V-53, etc?

In the mid 80's I had a 1974 F250 with a 4-53T, 4-speed with a 3-speed brownie behind it. a tad bit nose heavy. That thing would sure turn heads when driving around a parking lot with main box in granny low and the brownie in 1st. People would look and wonder what the screaming was!!!! Fun at the time but, I'll keep my 2001 5.9 6-speed.