The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-29-2014, 05:04 PM   #1
Dcm
Registered User
 
Join Date: Aug 2014
Location: Quitman, ms
Posts: 124
Is rear end limited slip? (Pics)

Please educate me on if this is a limited slip or just an open rear end.
Attached Images
 
Dcm is offline   Reply With Quote
Old 08-29-2014, 05:14 PM   #2
LockDoc
The Older Generation


 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,394
Re: Is rear end limited slip? (Pics)

-
Open....

LockDoc
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

-
LockDoc is offline   Reply With Quote
Old 08-29-2014, 05:18 PM   #3
leddzepp
Moderator
 
leddzepp's Avatar
 
Join Date: May 2007
Location: Southern Cal
Posts: 19,995
Re: Is rear end limited slip? (Pics)

Open diff. If you ever want to check without popping the cover off, spin the wheels and watch how they turn. If they turn in the same direction, you have a posi. If they turn in opposite directions you have an open diff.
__________________
1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed.

1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck.


RIP ElJay
RIP 67ChevyRedneck
RIP Grumpy Old Man
leddzepp is offline   Reply With Quote
Old 08-29-2014, 05:25 PM   #4
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: Is rear end limited slip? (Pics)

Quote:
Originally Posted by leddzepp View Post
Open diff. If you ever want to check without popping the cover off, spin the wheels and watch how they turn. If they turn in the same direction, you have a posi. If they turn in opposite directions you have an open diff.
That almost always works, but I know guys who used that heuristic to buy junkyard axles and get them home only to find out there's not a posi in it.

Maybe if they rust up or the oil congeals or they bind somehow both will turn the same way. Don't know, but I know the wheel direction thing isn't perfect.

On the other hand, if they spin opposite directions I guess you can assume its an open diff or a really worn posi.
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
davepl is offline   Reply With Quote
Old 08-29-2014, 05:26 PM   #5
Coley
Registered User
 
Coley's Avatar
 
Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
Smile Re: Is rear end limited slip? (Pics)

Quote:
Originally Posted by leddzepp View Post
Open diff. If you ever want to check without popping the cover off, spin the wheels and watch how they turn. If they turn in the same direction, you have a posi. If they turn in opposite directions you have an open diff.
....true, unless its a 'gov-lok' style (ie: 'non-friction clutch') which 'free wheels' like an open diff. until one wheels rotational speed starts to exceed the other one.

All Good
Coley
__________________
....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL
1966 Chevy 1/2 ton (Florida- Red/white)
1972 Chevy 1/2 ton (California- Blue/white)
2005 Chevy Silverado HD2500/Duramax
2000 Dodge Ram 1500
Coley is offline   Reply With Quote
Old 08-29-2014, 05:33 PM   #6
Bigdav160
Registered User
 
Bigdav160's Avatar
 
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
Re: Is rear end limited slip? (Pics)

Yet, the Gov-loc uses clutches just like a regular Eaton posi. They are just not preloaded with a spring.
__________________
My Classics:
'72 K20 Suburban + '65 Dodge Town Wagon
'72 Corvette Roadster +'67 Corvette Roadster
'73 Z-28 Camaro
'63 Ford SWB Uni Pickup
'50 Ford Coupe
Bigdav160 is offline   Reply With Quote
Old 08-29-2014, 05:45 PM   #7
Dcm
Registered User
 
Join Date: Aug 2014
Location: Quitman, ms
Posts: 124
Re: Is rear end limited slip? (Pics)

Thanks guys. I'm getting smarter everyday. Now if I could just do something about retaining what I've learned....
Dcm is offline   Reply With Quote
Old 08-29-2014, 06:22 PM   #8
leddzepp
Moderator
 
leddzepp's Avatar
 
Join Date: May 2007
Location: Southern Cal
Posts: 19,995
Re: Is rear end limited slip? (Pics)

If it has a gov-bomb just walk away
__________________
1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed.

1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck.


RIP ElJay
RIP 67ChevyRedneck
RIP Grumpy Old Man
leddzepp is offline   Reply With Quote
Old 08-30-2014, 08:32 AM   #9
Fitz
Account Suspended
 
Join Date: Jan 2007
Location: Tucson
Posts: 2,183
Re: Is rear end limited slip? (Pics)

Quote:
Originally Posted by Dcm View Post
Please educate me on if this is a limited slip or just an open rear end.
The EatonlLimited slip has a clutch pack and pressure springs between the spider gears. Yours is an open carrier.
Attached Images
 
Fitz is offline   Reply With Quote
Old 09-03-2014, 01:16 AM   #10
Dcm
Registered User
 
Join Date: Aug 2014
Location: Quitman, ms
Posts: 124
Re: Is rear end limited slip? (Pics)

@fitz: thanks for the pic.
Dcm is offline   Reply With Quote
Old 09-03-2014, 08:37 AM   #11
Fitz
Account Suspended
 
Join Date: Jan 2007
Location: Tucson
Posts: 2,183
Re: Is rear end limited slip? (Pics)

Quote:
Originally Posted by Dcm View Post
@fitz: thanks for the pic.
Any time!
Fitz is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:55 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com