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06-13-2012, 07:19 PM
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#1 |
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Registered User
Join Date: Jan 2007
Location: pittsburg kansas
Posts: 894
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70 and 72 axle interchangability
I have a 70 gmc with a 12 bolt factory rearend. I am switching over to 5 lug and i know i can buy aftermarket axles or have mine slugged and drilled for 5 lug. But i have a 72 rear end sitting at a friends house and was wondering if i could just pull the axles out of it and slide them into my housing and carrier.
Has anyone done this or know of any problems with this. thanks |
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06-13-2012, 07:26 PM
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#2 |
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member #16
 
Join Date: Dec 1999
Location: Yuba City Ca.
Posts: 3,618
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Re: 70 and 72 axle interchangability
Measure to see if you have the longer housing. Sometime in 1970 gm changed. some will interchange.
__________________
john http://67-72chevytrucks.com/vboard/showgroups.php board vendors  http://www.flickr.com/photos/1745471...7602865984234/ |
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06-16-2012, 08:32 PM
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#3 |
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Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: 70 and 72 axle interchangability
Anymore info on redrilling axles? I'm about to build an earlier model rearend for mine.
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06-16-2012, 08:39 PM
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#4 |
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Confirmed Truckaholic
 
Join Date: Oct 2000
Location: Sarver,PA 16055
Posts: 732
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Re: 70 and 72 axle interchangability
I've had 4 1970 trucks and they all had the same rearend as a 71 and 72.
__________________
1968 50th STEP SIDE SHORTY, 350/350, a/c, ps, p,b Daily Driver, 1970 Cst short fleet, all black, 350/350, 1970 2wd Blazer, 2wd, 6 cyl. 3 spd, original, now a 454, 350turbo, 3.73 posi, on the road 1971 2wd fleet shorty, 454, 700r4, 3.73 posi, SOLD to 67OLDSTYLE72 "My rig's a little old but that don't mean she's slow" - SAWYER BROWN's Six Days On The Road SEMPER FI "I use to be a lean mean fighting machine, but now I'm a huffin, puffin, over stuffin love muffin" |
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06-17-2012, 11:59 AM
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#5 | |
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Registered User
Join Date: Jan 2007
Location: pittsburg kansas
Posts: 894
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Re: 70 and 72 axle interchangability
any good machine shop can slug and redrill your old axles. Last time i had it done i think it was about 30 per axle.
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