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 04-29-2011, 08:39 PM   #1
pritch
Registered User
 
pritch's Avatar
 
Join Date: Mar 2004
Location: Hoytsville, Utah
Posts: 3,365
Posi question...

I know that on an open diff, the wheels will turn opposite directions, you know, with the tires off the ground, and the way you tell if it's a posi is that the wheels will turn in the same direction. Is there any other condition that would have the wheels turn the same direction other than being posi?

I'm starting to think some PO may have changed the rear end out at some time. The rear brake lines are not stock, and both wheels turn the same direction. I guess I'll have to pull the cover to see for sure.

Thanks
__________________
'68 Panel
Project Boogie Chillin'
'68 C-10
Ol' Green
pritch is offline   Reply With Quote
Old 04-29-2011, 08:43 PM   #2
70cst
Senior Member
 
70cst's Avatar
 
Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,373
Re: Posi question...

I am going to say no but I am mechanically challenged so lets get some experts to reply.
__________________
A husband can be right...or...A husband can be happy.

67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk.

1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc

JOHN 17:3...The better side of "LIFE"


Remember: Everyday is a good day...Some are just gooder!
70cst is offline   Reply With Quote
Old 04-29-2011, 09:01 PM   #3
99-LS1-SS
Registered User
 
99-LS1-SS's Avatar
 
Join Date: Mar 2011
Location: Oak Ridge NC
Posts: 957
Re: Posi question...

I would guess you have positive traction. If you're on a dirt road and you spin the tires do both tires leave marks?
99-LS1-SS is offline   Reply With Quote
Old 04-29-2011, 09:10 PM   #4
leddzepp
Moderator
 
leddzepp's Avatar
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,031
Re: Posi question...

sounds to me like you got posi...
__________________
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
RIP FleetsidePaul
leddzepp is offline   Reply With Quote
Old 04-29-2011, 09:16 PM   #5
turp mcspray
Registered User
 
turp mcspray's Avatar
 
Join Date: May 2007
Location: Rapid City South Dakota
Posts: 2,359
Re: Posi question...

This is the rule of thumb, but I have seen the opposite happen in both instances. You'll have to pull the cover to be 100% sure. It's probably due for some fresh lube anyway.
__________________
Turp Mcspray
New life for an old 2wd, farm blazer
http://67-72chevytrucks.com/vboard/s...d.php?t=505987
My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=342299
turp mcspray is offline   Reply With Quote
Old 04-29-2011, 09:21 PM   #6
pritch
Registered User
 
pritch's Avatar
 
Join Date: Mar 2004
Location: Hoytsville, Utah
Posts: 3,365
Re: Posi question...

Quote:
Originally Posted by 99-LS1-SS View Post
If you're on a dirt road and you spin the tires do both tires leave marks?
That's the thing-I just bought this truck a couple weeks ago. One of the rear brakes was locked up tight so I trailered it home and got that brake drum off and so far have only driven it into the back yard, very carefully with no brakes. If it is decent weather tomorrow I might get the rear brakes put back together and go for a little test drive As I've been working on these back brakes is when I noticed that the wheels both turn the same way.

Thanks for the info, guys.
__________________
'68 Panel
Project Boogie Chillin'
'68 C-10
Ol' Green
pritch is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 04:34 PM.


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