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11-07-2013, 07:57 PM
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#1 |
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Registered User
Join Date: Oct 2013
Location: Mililani, HI
Posts: 526
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Help Identifying Rearend
Hey Team:
I am doing a lot of reading and coming to the realization that I need to know what rear end I have...from what I read, I believe I have an Eaton. Please help me identify this rear end, also what are some pros and cons to this particular model? I am planning a dd restoration and want something that isnt harsh on mpgs, but also can handle the occasional 4000 lb trailer pull. Mahalo!
__________________
-JASON My grandpa, Gramps, won a 1970 C20 in 1969 for $1. I'm on a mission to restore it before he passes. My 1970 C20 Build Thread |
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11-07-2013, 08:06 PM
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#2 |
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Registered User
Join Date: Oct 2013
Location: Mililani, HI
Posts: 526
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Re: Help Identifying Rearend
Also, I plan on putting a 700r4 in with probably the 292 hp cpp crate engine. If that helps your analysis.
__________________
-JASON My grandpa, Gramps, won a 1970 C20 in 1969 for $1. I'm on a mission to restore it before he passes. My 1970 C20 Build Thread |
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11-07-2013, 08:21 PM
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#3 |
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The Older Generation
   
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 26,099
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Re: Help Identifying Rearend
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Yes, that would be the Eaton, probably an HO52. I think parts are getting hard to find for them, especially drums if you need them.. Most of them were 4.10's or 4.56 gears. If it is a 4.10 that wouldn't be too bad with the 700r4. LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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11-07-2013, 11:06 PM
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#4 | |
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Registered User
Join Date: Oct 2013
Location: Mililani, HI
Posts: 526
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Re: Help Identifying Rearend
Quote:
What do people usually swap out for, if they have this model Eaton. I am unfamiliar with gears in differentials, but from what I can gather, 3.73 is best for the 700r4. Is that correct? If so, what rearend would I ideally need to find?
__________________
-JASON My grandpa, Gramps, won a 1970 C20 in 1969 for $1. I'm on a mission to restore it before he passes. My 1970 C20 Build Thread |
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11-08-2013, 12:30 AM
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#5 | |
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The Older Generation
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 26,099
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Re: Help Identifying Rearend
Quote:
I'm not really up on all of the rear end choices but I put a Dana in my Suburban. Maybe some of the other members will chime in here... LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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11-08-2013, 02:31 AM
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#6 |
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Registered User
Join Date: Jan 2001
Location: RAMONA, CA, USA
Posts: 94
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Re: Help Identifying Rearend
I've heard that the 14bff parts will work in the Eaton.
__________________
1972 chevy k20 long bed 4x4 1990 chevy K5 blazer 2001 chevy 2500 hd 4x4 1999 chevy 1500 4x4 
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11-08-2013, 02:33 AM
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#7 |
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Registered User
Join Date: Jan 2001
Location: RAMONA, CA, USA
Posts: 94
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Re: Help Identifying Rearend
And the Eaton is a bad ass mofo. Nothing wrong with it.
__________________
1972 chevy k20 long bed 4x4 1990 chevy K5 blazer 2001 chevy 2500 hd 4x4 1999 chevy 1500 4x4
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