Rear Axle Gear Ratio Code Confusion!!

[Guest firerivi]

Can anyone tell me what this code on my rear axle of my 67 Riviera means??

(PJ DA 152) I know that the (PJ) means non-locking, but the other letters and numbers don't make sense as far as gear ratio.

I've seen the chart with all the years with the numbers and letters but none of them have the DA 152 thats on my axle.

Thanks

[1965rivgs]

Can anyone tell me what this code on my rear axle of my 67 Riviera means??

(PJ DA 152) I know that the (PJ) means non-locking, but the other letters and numbers don't make sense as far as gear ratio.

I've seen the chart with all the years with the numbers and letters but none of them have the DA 152 thats on my axle.

Thanks

The PJ code not only indicates that this is an "open" differential but also indicates the ratio is 3:07. Dont know what the DA denotes, but the "152" is apparently the "day of year of manufacture".

Tom Mooney

[Guest firerivi]

Thanks for the info Tom. I thought the 3:07 was suppose to come after the PJ code so that's why I was confused about the "152" number.

Griff