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E-Body 8:75 Axle Housing Differences #2667943
06/20/19 11:54 AM
06/20/19 11:54 AM
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MD
floyd Offline OP
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Looking at two E-body axle housings today and noticed some differences between the two. Overall length and spring perch location are the same. Note the wider flaring of the axle tube where it meets the flange on the bottom one. The bottom one is the original out of my T/A and the original in my 71 is the same. Is the narrower flaring from a later model? Also, which vent style is correct for a 70?

Thanks!

150414BF-19D6-40F3-A050-BA81659CCF37.jpegDC3B7CF6-85B2-456E-8DFB-122BE64F5820.jpegD52FDA62-DE53-417D-A99F-799632F47120.jpeg
Re: E-Body 8:75 Axle Housing Differences [Re: floyd] #2667948
06/20/19 12:04 PM
06/20/19 12:04 PM
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Rio Linda, CA
John_Kunkel Offline
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The narrow flaring is an aftermarket flange that accepts only the Green bearing. Somebody did a nice job of welding it on and blending it into the housing.

The factory housing end needs to be deeper to accept the bearing retaining collar and seal.


I'm supposed to respect my elders, but its getting harder and harder for me to find one now.
Re: E-Body 8:75 Axle Housing Differences [Re: John_Kunkel] #2667971
06/20/19 12:59 PM
06/20/19 12:59 PM
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floyd Offline OP
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John, that’s plausible but I cannot see any signs of welding. Also, wouldn’t you need to cut down a longer tube to get that result?

9EA55FFE-D957-47BB-89B3-036DDD3AF0E2.jpeg
Re: E-Body 8:75 Axle Housing Differences [Re: floyd] #2668021
06/20/19 02:44 PM
06/20/19 02:44 PM
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Posts: 20,419
Rio Linda, CA
John_Kunkel Offline
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Yeah that's factory. Maybe the later ones eliminated the bulged end. shruggy


I'm supposed to respect my elders, but its getting harder and harder for me to find one now.
Re: E-Body 8:75 Axle Housing Differences [Re: John_Kunkel] #2668277
06/21/19 10:18 AM
06/21/19 10:18 AM
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Iowa
burdar Offline
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Maybe there were a couple different suppliers? Here is the original rear axle from my 73.
[Linked Image]

Re: E-Body 8:75 Axle Housing Differences [Re: burdar] #2668311
06/21/19 11:22 AM
06/21/19 11:22 AM
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Polson, MT
DoctorDiff Offline
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The top housing is a 1974 model.

Re: E-Body 8:75 Axle Housing Differences [Re: DoctorDiff] #2668371
06/21/19 01:44 PM
06/21/19 01:44 PM
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floyd Offline OP
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Originally Posted by DoctorDiff
The top housing is a 1974 model.


1974 only? Wild. Any other differences that year? Were the axles/bearing setups unique as well?

Re: E-Body 8:75 Axle Housing Differences [Re: floyd] #2668528
06/21/19 09:28 PM
06/21/19 09:28 PM
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Polson, MT
DoctorDiff Offline
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1974 and maybe some 1973. 1974 pickup and van rears were also like that.

I never noticed any other differences.

Re: E-Body 8:75 Axle Housing Differences [Re: DoctorDiff] #2668648
06/22/19 10:20 AM
06/22/19 10:20 AM
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north of coder
moparx Offline
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i have a complete 70 newport rear on the shelf, and it has the "long" style ends. my charger also has those ends.
so should all 8 3/4's then, have that style of bearing housings [ the "long" style] until the late 73 and end of line 74 model years ?
beer

Re: E-Body 8:75 Axle Housing Differences [Re: moparx] #2668705
06/22/19 01:01 PM
06/22/19 01:01 PM
Joined: Jan 2003
Posts: 20,419
Rio Linda, CA
John_Kunkel Offline
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I'd be interested to see a shot looking into the housing end of the '74.


I'm supposed to respect my elders, but its getting harder and harder for me to find one now.
Re: E-Body 8:75 Axle Housing Differences [Re: John_Kunkel] #2668913
06/23/19 02:20 AM
06/23/19 02:20 AM
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Polson, MT
DoctorDiff Offline
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The short housing ends contain the same inner axle seal in the same location as the wide version.

The tubing is just thinner in that area.


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