Author Topic: 12 bolt Rear axle Decode 69 PJ code ?  (Read 760 times)

Conquest396

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12 bolt Rear axle Decode 69 PJ code ?
« on: June 04, 2014, 01:31:23 AM »
Here is a picture of the rear axle stamp, tried to make the stamping as visible as possible with lighting. Looks like  PJ code + 1012 G with E underneath, which is 68 3.73 posi, BUT the casting date on the 3894860 center section is J 7 8 . This would be cast in October 68. Car is a 12A 69 Camaro, could this be correct?
1969 51 51 729 12A A/C PW D80

Ed B

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Re: 12 bolt Rear axle Decode 69 PJ code ?
« Reply #1 on: June 04, 2014, 01:59:39 AM »
Looks like J 7 6 to me. Can you post a picture of the spring perch?

Ed

KurtS

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Re: 12 bolt Rear axle Decode 69 PJ code ?
« Reply #2 on: June 04, 2014, 04:39:22 AM »
I think it's a 67 axle too.
Kurt S
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elcamino72

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Re: 12 bolt Rear axle Decode 69 PJ code ?
« Reply #3 on: June 04, 2014, 01:51:48 PM »
Is the filler plug 3/4" or 1"

Conquest396

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Re: 12 bolt Rear axle Decode 69 PJ code ?
« Reply #4 on: June 04, 2014, 09:49:18 PM »
Pretty sure the perches are "filled" with the springs so its the deeper multileaf perches, Ill get some more pictures this weekend, and measure the plug. The last digit of the casting date in person is definitely an 8 , so the year cast is 1968 , no? October 7th 1968 and tube date is october 12 th, which works.

What does the filler plug size tell us ?

KurtS

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Re: 12 bolt Rear axle Decode 69 PJ code ?
« Reply #5 on: June 05, 2014, 02:58:35 AM »
There's no definite when it comes to cast 6's and 8's and 9's. They can all look the same.
PJ is a 10 bolt in 69. So it can't be that.
Perches can also be changed.

cook_dw

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Re: 12 bolt Rear axle Decode 69 PJ code ?
« Reply #6 on: June 05, 2014, 11:51:24 AM »
Just for comparison.

Darrell Cook

1967 LeMans Blue SS/RS L35 clone
1968 Rallye Green SS L78 - unrestored original
1968 Matador Red Z28