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Author Topic: Earliest 3969341 and Latest 3894860 axles  (Read 11081 times)
bcmiller
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« on: January 08, 2013, 10:48:08 PM »

It appears that 12 bolt rear axles with casting number 3969341 started showing up in 69 Camaros sometime around early August of 1969.  Prior to this, only the 3894860 casting number was used.  

What I am looking for are dates (casting date of housing and assembly date stamp - with letter codes - on the axle tube) for early 3969341 axles and late 3894860 axles.  If you know it is original to the car, you can post the body assembly date from the cowl tag too.

Please let me know what you have.  Post pics if possible.  There was probably somewhat of an overlap, but not sure how much.    

Thanks in advance!

Bryon

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1968 Camaro SS - now 468 BBC, M21, 12 bolt.
Bryon
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« Reply #1 on: January 12, 2013, 02:30:37 AM »

Where are the casting numbers?
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69 x77 burnished brown, 711 int 05A bought in 78
67 rs/ss 350 butternut yellow 4 speed 2nd owner
70 Z28 forrest green, green int, M40, bk vinyl roof PROJECT
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Ed Bertrand
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« Reply #2 on: January 12, 2013, 12:08:22 PM »

Here you go.

Ed

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bcmiller
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« Reply #3 on: January 12, 2013, 06:33:47 PM »

09A Dusk Blue Z28 124379N680789
12-bolt 3:73 Posi:
assembly stamp C BU 0828
                           E
Casting # 3969341
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1968 Camaro SS - now 468 BBC, M21, 12 bolt.
Bryon
KurtS
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« Reply #4 on: January 13, 2013, 09:06:11 PM »

I parted out 9N677954  CBS0805G  341, cast G259. I only know of 2 341's before that one. There have to be more.....

Not a lot of axle casting data on these late cars in the db.
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Kurt S
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« Reply #5 on: January 14, 2013, 12:22:18 AM »

My 09C Z28/RS has the 3969341 rear, stamped BU0828

Gary
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
x77-69z28
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« Reply #6 on: January 14, 2013, 02:09:30 AM »

Here you go.

Ed
Oh. Thought he was talking about the axles themselves! Duh!!!

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69 x77 burnished brown, 711 int 05A bought in 78
67 rs/ss 350 butternut yellow 4 speed 2nd owner
70 Z28 forrest green, green int, M40, bk vinyl roof PROJECT
99 SS hugger orange 6spd NO TTOPS bought new 1 of 54
11 cts-v blk diamond  edition wagon 556hp sick!
69glacierblue
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« Reply #7 on: January 18, 2013, 11:11:27 PM »

Maybe a little earlier than you want, but here goes:
06A
9N665238
BM0625G
Cast 860

Dennis
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Dennis
'69 SS350 Vert (X55) 4-sp.
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bcmiller
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« Reply #8 on: February 09, 2013, 01:33:47 AM »

Keep the information flowing guys. Thanks for the replies so far!
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Bryon
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« Reply #9 on: February 10, 2013, 03:20:45 PM »

Build date 08E (Z28)
Casting number 3969341
Assembly stamp CBU 0828 G2
Casting date H139
                           
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Sonny

1969 Z28 Camaro
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bcmiller
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« Reply #10 on: February 12, 2013, 06:19:45 PM »

My 09C Z28/RS has the 3969341 rear, stamped BU0828

Gary

Gary, is it stamped BU or CBU?  The one Kurt posted had a casting date earlier than yours and it used the 3 letter code. 

I am just trying to see if maybe the casting date change corresponded with the change from 2 letter codes to 3 letter codes.
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Bryon
bcmiller
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« Reply #11 on: February 12, 2013, 06:20:42 PM »

Build date 08E (Z28)
Casting number 3969341
Assembly stamp CBU 0828 G2
Casting date H139

Thanks! 
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1968 Camaro SS - now 468 BBC, M21, 12 bolt.
Bryon
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« Reply #12 on: February 12, 2013, 11:48:37 PM »

My 09C Z28/RS has the 3969341 rear, stamped BU0828

Gary

Gary, is it stamped BU or CBU?  The one Kurt posted had a casting date earlier than yours and it used the 3 letter code.  

I am just trying to see if maybe the casting date change corresponded with the change from 2 letter codes to 3 letter codes.

only 'BU'...  2 letter code..   (see photo attached)
and actually I see that I posted the incorrect date...   BU0829G1 ....
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
KurtS
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« Reply #13 on: February 15, 2013, 01:06:05 AM »

That looks like a C to the left of the BU. Pretty hard to see...
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Kurt S
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« Reply #14 on: February 15, 2013, 08:46:37 AM »

..  then you have better eyes or a better imagination than I, Kurt..  Smiley
Do you have a photo of a CBU stamp?  I don't think I've ever seen one, so maybe it's not like I was expecting..?
or maybe Bryon can post a pix of his as he has a C BU code??
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
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