rear axle stamped 2HG C007 1 ??
02-06-2002, 08:27 PM
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Car: 1982 Z-28
Engine: 5.0 w/ Holly carb
Transmission: TH-700R4
rear axle stamped 2HG C007 1 ??
I cleaned off the area on my rear axle where the numbers are stamped. I found 2H G C007 1 What does this mean?
02-06-2002, 09:27 PM
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
2H is the gear ratio code
G = Detroit Gear & Axle assembly plant.
C = ?
007 = Day of year made
1 = Day shift.
G = Detroit Gear & Axle assembly plant.
C = ?
007 = Day of year made
1 = Day shift.
02-07-2002, 02:31 AM
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Car: 1982 Z-28
Engine: 5.0 w/ Holly carb
Transmission: TH-700R4
The "C" could be a ZERO or a 6 I guess. It is clear but faintly stamped. 2H is 3.23?
02-09-2002, 05:57 PM
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Car: 1982 Z-28
Engine: 5.0 w/ Holly carb
Transmission: TH-700R4
So the prefix "2HG" 2H is ratio? G is production plant.
I have 3 other rears 2 ea 3.42 posi (w/PBR disc)with the prefix "2PN". And one that is 3.23 posi (w/PBR disc) with the prefix "2PM". These rears must have been made at different plants?
I have 3 other rears 2 ea 3.42 posi (w/PBR disc)with the prefix "2PN". And one that is 3.23 posi (w/PBR disc) with the prefix "2PM". These rears must have been made at different plants?
02-10-2002, 01:36 PM
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Car: 1989 Firebird Formula
Engine: Internal Combustion
Transmission: Completed
Axle/Gears: ones that turn.
Checking here http://www.hioutput.com/tech/ratio.html I find the code 2HG as being a 1986 3.23 ratio open carrier (non-posi).
Pete
Pete
02-10-2002, 02:14 PM
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Since we've determined the proper code from the axle as 2HG C 007 1 we come up with
2HG = 1986 3.23 ratio open carrier
C = Buffalo assembly plant
007 = Day of year made
1 = Day shift
2HG = 1986 3.23 ratio open carrier
C = Buffalo assembly plant
007 = Day of year made
1 = Day shift
02-10-2002, 04:53 PM
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Car: 1982 Z-28
Engine: 5.0 w/ Holly carb
Transmission: TH-700R4
Thanx, a lot fellas. The 2HG rear in question was apart at sometime before I owned the car. It makes a howling noise that I attribute to improper assy by the previuos owner. Can I simply convert it to "posi" by changing the carrier, and make the noise go away at the same time?
Thanx,ANDYZ28
Thanx,ANDYZ28
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