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#1
07-17-2005, 01:40 AM
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12 Bolt Rearend Stamping
I have a BV coded 12 bolt rear end that I am trying to verify. It is a correct #860 69 Camaro rear. The axle is stamped BV 1116 G1 and that is all. There is no "E" stamped under it as all the posi applications are supposed to have. It is a Nov. 68 casting. Question is are all the BV stamped rears supposed to have the Eaton stamp or does anyone else have one that is not stamped? It appears to be an original stamp and not a restamp.
John 
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#2
07-17-2005, 03:40 AM
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Re: 12 Bolt Rearend Stamping
The axle was made at Detroit Gear and Axle Plant with the following posi codes used:
D = Dana Diff. E = Eaton Diff W = Warren Motive Diff. No Stamp = Could have been an oversight by the assembler, remember, mistakes were common. What diff did the rear have? Paul
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70 Camaro LA Z-28 03B Citrus Green LT-1 M-40 3.73's 69 Camaro X-77 Z-28 10C Cortez Silver M-21 3.73's Deluxe Project X - SOLD 69 Camaro X-77 Z-28 01B Garnet Red w/Black top, M-20 3.73 Deluxe Houndstooth
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#4
07-17-2005, 04:32 AM
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Re: 12 Bolt Rearend Stamping
Hi Paul, Yes the differential had the original 4.10 dated gears and Eaton 4 series posi. Was definitely original to the rear. Just bugs me that it is not stamped for posi. Just opens up questions for us original guys. I guess your BV rear is stamped for posi?
John
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#5
07-17-2005, 08:03 AM
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Re: 12 Bolt Rearend Stamping
Yes, mine is BV0417G1 E. It also has the original 4.10 gears and Eaton Posi.
Paul 69 Camaro SS L78 M21 4.10's
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70 Camaro LA Z-28 03B Citrus Green LT-1 M-40 3.73's 69 Camaro X-77 Z-28 10C Cortez Silver M-21 3.73's Deluxe Project X - SOLD 69 Camaro X-77 Z-28 01B Garnet Red w/Black top, M-20 3.73 Deluxe Houndstooth
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#6
07-17-2005, 08:20 AM
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Re: 12 Bolt Rearend Stamping
Stamping Pic:
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70 Camaro LA Z-28 03B Citrus Green LT-1 M-40 3.73's 69 Camaro X-77 Z-28 10C Cortez Silver M-21 3.73's Deluxe Project X - SOLD 69 Camaro X-77 Z-28 01B Garnet Red w/Black top, M-20 3.73 Deluxe Houndstooth
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#8
07-19-2005, 08:43 AM
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Re: 12 Bolt Rearend Stamping
Maybe the E was missed at the time of stampings...Possible!
I just noticed that your BV and the above picture BV with the E, they both have the B and V staggered equally with the V up higher...interesting! 
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Chavez Ravine
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#9
07-19-2005, 02:59 PM
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Re: 12 Bolt Rearend Stamping
On rearend stamps, it is like they did not use a gang holder. You see on some BE rears the letter codes are not straight either. Roger
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67 Z28, 67 RS/SS 396 Canadian, 73 Camaro Z28/LT Carolina Blue
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