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#1
06-02-2013, 11:28 PM
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12 bolt axle code
Hi guys, I think that the stamp code that I am seeing is "BR" and not "RR". what do you think?
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#2
06-02-2013, 11:31 PM
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Re: 12 bolt axle code
BR is what I see
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1969 Camaro RS/SS Azure Turquoise 1969 Camaro Z/28 Azure Turquoise 1984 Camaro z/28 L69 HO 5 speed 1984 Camaro z/28 zz4 conversion 1987 Monte Carlo SS original owner
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#3
06-02-2013, 11:51 PM
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Re: 12 bolt axle code
The character is curving, unlike the "R". Appears to be a "B"
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1970 Super Sport Chevelle Enthusiast and Restoration L34, L78, LS5, LS6 427 engine... oval port and square port builds Muscle Car Mechanic and Engine Builds.
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#5
06-02-2013, 11:59 PM
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Re: 12 bolt axle code
Definitely BR.
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I currently own a 1969 Camaro SS350. Although the original drivetrain is long gone, this 4/speed car has a March '69 HC coded block with #041 heads. The transmission is an M20 Muncie #660 case and the rearend is a BS coded 12 bolt posi. Built in Van Nuys.
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#6
06-03-2013, 03:01 AM
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Re: 12 bolt axle code
If its a leaf spring rear end than it appears to be a 3.07 open for a Nova.
Kurt
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 1969 SS396 Post Sedan Delivered to Van-T Topeka KS MCACN Day2 Concourse Gold Award 1965 VW El Lobo Dune Buggy built in the mid 70’s for the Iowa Shriners 1968 Schwinn Orange Krate 1969 Schwinn Pea Picker 1968 Schwinn 5-Speed 1970 Schwinn 3-Speed Deluxe 1972 Schwinn 10-Speed Continental 1973 Schwinn 5-Speed Suburban All Original Paint Bikes
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#7
06-03-2013, 04:47 AM
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Re: 12 bolt axle code
CRG shows a BR axle is a 3.07 <span style="text-decoration: underline">with</span> Positraction. http://www.camaros.org/drivetrain.shtml#AxleCodes
After 1969 axle codes usually had a three letter identification, like CBR instead of just BR.
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...................... John Brown This isn't rocket surgery.....
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#8
06-03-2013, 10:47 AM
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Re: 12 bolt axle code
Yes John, you're correct...it is a 3.07 Posi......I read it wrong.
That rear end code is correct for a Nova also. Nova Resource What is the casting date? Kurt
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1969 SS396 Post Sedan Delivered to Van-T Topeka KS MCACN Day2 Concourse Gold Award 1965 VW El Lobo Dune Buggy built in the mid 70’s for the Iowa Shriners 1968 Schwinn Orange Krate 1969 Schwinn Pea Picker 1968 Schwinn 5-Speed 1970 Schwinn 3-Speed Deluxe 1972 Schwinn 10-Speed Continental 1973 Schwinn 5-Speed Suburban All Original Paint Bikes
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