98 GC Larado I6, big gear had 39 teeth on it with these numbers and letters.... D43982 P8L094 3911 876. pretty sure its still original axle. Anyone know what I got? Pretty sure I know but just want to be sure before I grab another. If need more info I can go get under it and look

 

Count the teeth on the ring gear (big gear) and divide by the teeth on the pinion gear (small gear). The number you get will be the gear ratio.

 

Ya my buddy's dad has a shop and he said something like that but I couldnt remember what exactly , thanks