As some of you may or may not know I'm restoring / building this car, anyway, I pulled the rear end out to change the in-tank fuel pump so I decided to check it out since I've got it all apart, anyway after I sandblasted the chunk and axle tubes I got to looking for the numbers that tell the gear ratio, year, etc..
I got my Haynes manual and a camaro number reference guide to see what I had. Keep in mind I've owned this car since it was new, anyway the ratio code is a 2KG which is an 1982 number for a 3.08 gear open rear, my car is a 1987
Well, I checked and there was no 2KG listed for 87 but even the manufacture date states it's a 87 rear end. It is an open rear but buy the 1987 numbers a 3.08 is a posi, 4HB and 4HF.
Anyone know anything about this? It really doesn't matter but it would be nice to know what the deal is with the codes, thanks

mike

 

check the tech data section on the home page and see what rears came for you car. My 87 Z28 has the standard 2.73 peg leg i also got the 4bbl 305 and not TPI.

 

I would pull the cover to change the oil and check the gear , my 85 iroc's code's on the tube's did nothing for me they came back as something from 83 .