3.07 gears

[KurtS]

A CBL axle is a late 69 axle, about 8 months too late for a 12D car. It's not original.

[X33RS]

Crawled back under it, can't get a good picture on the ground.  Pretty sure it has a C

Date is 8 11 H   Not 100% certain on the H but that's what it appears to be until I can get it on the lift.

Any way to explain the 68 model year date?

[X33RS]

Probably best I clean this up to take and picture so you guys can determine, because looking again it appears II instead of 11,  and what I think is an H is almost unreadable.  This may not photo well but I'll do my best.

[HawkX66]

The rear end code should be something like "C BS 0820 G2" with an "E" for Eaton underneath if it's a posi Eaton which yours wouldn't be (non posi). That's for the late 69 rear end. I attached a pic of mine.
I can't imagine a 69 Z28 ever being ordered without a posi.




From CRG: http://www.camaros.org/drivetrain.shtml#AxleCodes

Axle Code Format:  aa mmdd fs             
                        p
     where:
       aa = application code - two alphabetic characters
       mm = two-digit numeric month (01-12)
       dd = two-digit numeric day of month (01-31)
        f = factory plant code
            G - Detroit Gear & Axle plant
        s = shift code (1 or 2)

        p = a positraction manufacturer code, when applicable,
            is added on a second line.  The posi manufacturer
            codes are D for Dana, E for Eaton, and W for
            Warner.

     Example: BL 1122 G2
            For a 68 or 69 model, this is interpreted as a
            3.07:1 axle ratio, non-posi, 12-bolt rear
            axle assembled on November 22, 67 or 68 by the 
            Detroit Gear & Axle plant, second shift.

[william]

I can't imagine a 69 Z28 ever being ordered without a posi.

Possible and not all that unusual; over a dozen in our db. Standard equipment; I had one. Posi was not desirable on tight road courses. Only a Z/28 could be built with a 3.73:1 non-posi axle.

[HawkX66]

I can't imagine a 69 Z28 ever being ordered without a posi.

Possible and not all that unusual; over a dozen in our db. Standard equipment; I had one. Posi was not desirable on tight road courses. Only a Z/28 could be built with a 3.73:1 non-posi axle.

Interesting. I never would have thought that. Thanks.

[bcmiller]

Crawled back under it, can't get a good picture on the ground.  Pretty sure it has a C

Date is 8 11 H   Not 100% certain on the H but that's what it appears to be until I can get it on the lift.

Any way to explain the 68 model year date?

You might be seeing it upside down.  Might be H 11 9  - H is August and the C BL code would then make sense.  Would like to know for sure because we could use your data over in the axle thread concerning this time period.

This is the link to the axle thread.   http://www.camaros.org/forum/index.php?topic=10375.0;all

Oh, and you can just go ahead and call me Bryon.  Kinda like Brian with a different spelling. 

[bcmiller]

I can't imagine a 69 Z28 ever being ordered without a posi.

Possible and not all that unusual; over a dozen in our db. Standard equipment; I had one. Posi was not desirable on tight road courses. Only a Z/28 could be built with a 3.73:1 non-posi axle.

Interesting. I never would have thought that. Thanks.

Now we are talking 69 and Z28s guys, right?  Because I know of two 68 L78s that I am pretty sure were built with 3.73 open rear axles.  Mine is one. 

[william]

Yup '69s. Don't have '68 ordering info.

[X33RS]

Crawled back under it, can't get a good picture on the ground.  Pretty sure it has a C

Date is 8 11 H   Not 100% certain on the H but that's what it appears to be until I can get it on the lift.

Any way to explain the 68 model year date?

You might be seeing it upside down.  Might be H 11 9  - H is August and the C BL code would then make sense.  Would like to know for sure because we could use your data over in the axle thread concerning this time period.

This is the link to the axle thread.   http://www.camaros.org/forum/index.php?topic=10375.0;all

Oh, and you can just go ahead and call me Bryon.  Kinda like Brian with a different spelling. 

LOL, all those letter/numbers work upside down and right side up, what are the chances, haha.  I hadn't thought of that.  Best thing for me to do is clean this thing up and get a couple of good pics to post so you guys can figure it out and use it in your data base.  Thanks Bryon.
Larry

[X33RS]

I can't imagine a 69 Z28 ever being ordered without a posi.

Possible and not all that unusual; over a dozen in our db. Standard equipment; I had one. Posi was not
desirable on tight road courses. Only a Z/28 could be built with a 3.73:1 non-posi axle.

This car would not have surprised me if it wasn't a posi.  Other than being an RS with deluxe interior, it has no other options on it.  Not a gauge car, no spoilers, no hood.  Doesn't even have power steering.