SO i picked up a 4th gen rear off of a 1999 z28. Was a manual transmission car so I was expecting a 3.42 gear ratio. Pulled the cover today and gears look great but the stamping was hard to make out. To me it looks like it is 42-11. 3.82 gears don't seem very common so I just wanted to verify with someone that may know more than me about these gears.




Almost looks like 12-11 but clearly that is not correct. So must be 42-11 or 3.82??

Thanks to anyone who can verify.

 

Looks like 12-11-2005. ....is that a date? Are the ratios stamped like that? Sure doesn't look like a 4. Can't you just count the teeth?

 

 

Looks to me like it says 12 41 ... which is 3.42

 

Concur. 12 41. You can see that the flag on the one's have a curve. The diagonal on the 4 does not.

GD