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03-05-2016, 04:31 PM
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#1 |
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Registered User
Join Date: Mar 2010
Location: St Charles MO
Posts: 481
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rear end swap
Ok getting close to swap. I just sold the Eaton HO52.
Now I want to go 5 Lug, and I have donor part ( off a 1973) I also have a donor part from a 71 ,6 lug. I want to know if I can use my 71 housing with my 73 axles. (Both units are 3:08) This would make it a direct bolt on. No Fab no welding. What do you think? |
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03-05-2016, 04:58 PM
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#2 |
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1965 Chevy C10, 2005 4.8L/4l60
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,541
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Re: rear end swap
71 12 bolt will be 5 lug not 6.
You will need to have the same length axles and spline count as well You can just have the 6 lug axles redrilled.
__________________
Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684  support our troops! |
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03-05-2016, 08:21 PM
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#3 |
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Registered User
Join Date: Mar 2010
Location: St Charles MO
Posts: 481
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Re: rear end swap
Thanks
I HAVE TO CHECK THE 6 LUG |
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03-05-2016, 09:17 PM
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#4 | |
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Registered User
Join Date: Feb 2010
Location: Richmond Hill, GA
Posts: 64
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Re: rear end swap
Quote:
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1957 Chevy 3200 1971 Jeep CJ-5 Renegade II 1983 Chevy K/10 Silverado 1985 Jeep CJ-8 Scrambler |
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03-05-2016, 09:49 PM
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#5 |
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Registered User
Join Date: Jan 2013
Location: Calgary Alberta
Posts: 1,166
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Re: rear end swap
I don't see why not if the housings are the same width and splines the same. I also have a 71 with 6 stud axles. Apparently they changed mid-year from 6 stud to 5 stud. Aside from stud count, what are the differences between the 71 and 73? I would have thought they might be the same. If the bearing surfaces are good maybe don't throw out those 6 stud axles. Somebody would love to have them.
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03-06-2016, 12:17 AM
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#6 | |
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Registered User
 
Join Date: Sep 2006
Location: San Francisco
Posts: 4,780
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Re: rear end swap
Quote:
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"A man and his truck, what a beautiful thing" 65 Short Fleetside BBC 65 Long Fleetside 283 3 on the tree for now. my build thread http://www.67-72chevytrucks.com/vboa...d.php?t=259536 |
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03-06-2016, 01:29 AM
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#7 |
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60-66 Nut
 Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: rear end swap
A 12 bolt from a '71-'72 C10 will be 63.5" wide and have the 5 x 5" wheel stud pattern. Also most will be setup for the trailing arm suspension. A 12 bolt from a '71-'72 K10 should also be 63.5" wide, setup for leaf springs, but the wheel stud pattern will be 6 x 5.5". The '73-'82 C10 12 bolts will also be 53.5" wide and have the 5 x 5" wheel stud pattern, but will be setup for leaf springs.
__________________
Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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03-07-2016, 06:50 PM
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#8 |
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Registered User
Join Date: Mar 2010
Location: St Charles MO
Posts: 481
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Re: rear end swap
I was looking at the 1973 axle seat and it is almost the same length as the 1971. I was wondering if welding a longer plate with holes ( u bolts) and the 73 axle seat can work?
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03-08-2016, 01:03 AM
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#9 |
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60-66 Nut
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: rear end swap
The '73 is setup for leaf springs and I doubt that the leaf spring pads are the correct center to center spacing. Why not do it right and cut those off and weld on the trailing arm mounts? Your are also going to have to weld on a panhard bar mount.
__________________
Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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03-08-2016, 07:22 AM
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#10 | |
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Registered User
Join Date: Mar 2010
Location: St Charles MO
Posts: 481
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Re: rear end swap
Quote:
Thank you you are very helpful |
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03-08-2016, 10:47 AM
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#11 |
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Registered User
Join Date: Apr 2009
Location: Billerica, Ma
Posts: 197
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Re: rear end swap
Out of curiosity, Why did you decide to get rid of the eaton?
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- Patrick 1964 GMC pickup lwb ~ My newest build! 1937 Ford Coupe ~ Custom frame, LS1, quickchange 1950 Chevrolet 3100 ~ Bagged (Sold) 1931 Chrysler Roadster ~'32 Ford Frame, Channeled 8"  (Originally a 60's show car)1967 Chevelle ~ 454 Triple Black (Sold) 1964 Chevrolet Impala SS (Sold) |
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03-08-2016, 11:18 AM
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#12 | |
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Registered User
Join Date: Mar 2010
Location: St Charles MO
Posts: 481
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Re: rear end swap
Quote:
The rear end is funding the build. |
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03-08-2016, 12:16 PM
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#13 |
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Registered User
Join Date: Sep 2006
Location: San Francisco
Posts: 4,780
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Re: rear end swap
They make Bolt on pan nard bar mounts but I could only find them for the Ford 9".
__________________
"A man and his truck, what a beautiful thing" 65 Short Fleetside BBC 65 Long Fleetside 283 3 on the tree for now. my build thread http://www.67-72chevytrucks.com/vboa...d.php?t=259536 |
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03-08-2016, 01:21 PM
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#14 |
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Senior Member
Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
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Re: rear end swap
Any of the log panhard bars us a bracket the goes on the trailing arm so no need to weld one on. The less heat you pt on the housing the better.
Jimmy
__________________
60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic |
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