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Re: e-body axle housing vent hole location
[Re: 70mopes]
#1674127
09/19/14 01:17 PM
09/19/14 01:17 PM
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Joined: Jan 2003
Posts: 8,016
Polson, MT
DoctorDiff
master
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master
Joined: Jan 2003
Posts: 8,016
Polson, MT
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The vent location did not change.
You probably have a '65-'69 C-body housing. C and E body housings share the same 46" spring perch dimension, but the angle differs. In addition, the C-body housing end flange is a tad taller and the housing is a tad wider.
Last edited by DoctorDiff; 09/19/14 01:19 PM.
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Re: e-body axle housing vent hole location
[Re: DoctorDiff]
#1674128
09/22/14 06:48 PM
09/22/14 06:48 PM
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Joined: Feb 2003
Posts: 1,228
Maple Valley, WA
70mopes
OP
pro stock
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OP
pro stock
Joined: Feb 2003
Posts: 1,228
Maple Valley, WA
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Thanks Cass I learned something new!
For any interested parties, here is a pic of a 65-69 C-body housing on the left and a 70-74 e-body housing on the right. Vent hole location is different. Perch position common to housing tubes differ causing e-body assembly third member position to aim a few degrees upwards. The length and distance between leaf spring perches is the same between the two.
I used my sons high tech work bench to help in setting up the comparison shot!
Last edited by 70mopes; 09/23/14 02:22 PM.
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Re: e-body axle housing vent hole location
[Re: DoctorDiff]
#1674131
09/23/14 01:44 AM
09/23/14 01:44 AM
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Joined: Jan 2003
Posts: 27,471
So Cal
autoxcuda
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,471
So Cal
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Quote:
'65-'67 B-body housing:
Width (bare housing) 54.25"
Spring perch: 44" on center - pinion 4 degrees up
Vent bolt location: 7.75" from center of housing
'68-'69 B-body housing:
Width (bare housing) 54.9375"
Spring perch: 44" on center - pinion 4 degrees up
Vent bolt location: 7.75" from center of housing
'70 B-body housing:
Width (bare housing) 54.9375"
Spring perch: 44" on center - pinion 4 degrees up
Vent bolt location: 11.25" from center of housing
'70-'74 E-body housing:
Width (bare housing) 56.5"
Spring perch: 46" on center - pinion 7 degrees up
Vent bolt location: 11.25" from center of housing
'65-'69 C-body housing:
Width (bare housing) 56.625"
Spring perch: 46" on center - pinion 3 degrees up
Vent bolt location: 7.75" from center of housing
To add to that for non B/E body people reading this, the A-body vent location changed at some point too. Forgot which year? 
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