i have a 74 k20 with a 350/th350/205 and D60/Corp. 14 curently with 4.56's with 38.5 bogs. im puting in a e locker up front and puting 39.5 tsl's on. so i figured im that far might as well put some lower gears in it since its not going to be a daily driver anymore. so whats your input?