Found these numbers on a tag on my 8.8 differential on my 1985 GT : 274F 73A755314. Can anyone decipher these. Also, I was checking my gear ratio, 1 360 degree turn of the tire turned the drive shaft 2 and 3/4 turns, by my close approximation. What exact ratio do you think this is? Also, with both tire off the ground, when i spun one tire the other tire spun in same direction, both forward. Does this indicate traction-lock? I was hoping the tag numbers would answer these questions.

 

2.73 is good answer

 

thats not an 8.8

 

an 8.8 and 7.5 side by side when i did my swap.

 

that's a 4 popper 7.5^^^^

 

v6 actually

 

it's 2.73 gears, also the door tag tells you that as well.

under "ax"

m=2.73
z=3.08
e=3.27 (only available with aod cars)