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#1 |
Senior Member
![]() Join Date: Oct 2005
Location: south carolina
Posts: 658
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Why does this happen, Please read and help
I have a 3:73 posi rearend. When I try to roll the truck backwards i can hardly move it. If I roll it forwards it rolls fine. Is this typical of a posi unit or am I about to be rebuilding my rearend. I notice it feels a little more slugish also. It even does it if it's in reverse. It feels like something is binding or as if the brakes were on.
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1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod. ![]() |
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#2 |
Registered User
![]() Join Date: Nov 2002
Location: Mt. Vernon, WA..
Posts: 2,322
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Re: Why does this happen, Please read and help
parking brake stuck?
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#3 |
Senior Member
![]() Join Date: Oct 2005
Location: south carolina
Posts: 658
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Re: Why does this happen, Please read and help
It releases and the drums arent hot after driving it. That was my initial thought also so I checked it to see. As a matter ofact I remember when I put new brakes on the bake I had both drums off with the truck jacked up an tried to turn the axle and couldn't hardly rotate it backwards, no problem forward though.
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1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod. ![]() |
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#4 |
Registered User
![]() Join Date: Nov 2002
Location: Mt. Vernon, WA..
Posts: 2,322
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Re: Why does this happen, Please read and help
if you put new brakes on, I'd make sure you didn't put em on backwards. I think(not 100%) the larger of the brake pads goes toward the rear of truck, cause it does the majority of the stopping.
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#5 |
Registered User
Join Date: Dec 2009
Location: SoCAL
Posts: 121
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Re: Why does this happen, Please read and help
I'd pull the cover off and take a lil peek.. Maybe even drop the driveshaft to reassure the issue is in the back end. Good luck!
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#6 |
Registered User
![]() Join Date: Dec 2010
Location: ravensdale washington
Posts: 111
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Re: Why does this happen, Please read and help
a buddy of mine had this problem shortly after doing a brake job. turned out that he had the shoes backwards. the larger shoe gos on the back, it is the e brake shoe. the smaller shoe gos on the front side of the backing plate.
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![]() ![]() ![]() 71 gme Sierra Grande lwb. 68 Rambler American 2 door 75 jeep cj5 |
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#7 |
Account Suspended
Join Date: Jan 2011
Location: Kokomo Indiana
Posts: 56
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Re: Why does this happen, Please read and help
I had that problem once. I would back up and it would barely move, then something would pop loose and it would roll freely. Turned out to be dirt or some other debris in the line. I removed the line from the proportioning valve and blew it out, re-bled, and the problem went away.
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#8 |
Senior Member
![]() Join Date: Oct 2005
Location: south carolina
Posts: 658
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Re: Why does this happen, Please read and help
The reason I redid the brakes was because they were on backwards,lol. That was causing all kinds of problems.When I changed them around to the way they are supposed to be is when I noticed it. I had both drums off and would try to rotate the axles by hand, could hardly move it in reverse and move it freely forward. I am going to drop the driveshaft today and see if that makes a difference.
__________________
1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod. ![]() |
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#9 |
Has more rust than truck...
Join Date: Apr 2005
Location: Ivanhoe, MN
Posts: 2,421
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Re: Why does this happen, Please read and help
I have the same problem right now(can go backward) Pretty sure mine is the parking brake cable not returning all the way.
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#10 |
Registered User
Join Date: Jul 2009
Location: blacksburg,s.c.
Posts: 155
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Re: Why does this happen, Please read and help
Check out this lil pdf, when you said twice you removed the drums and it does same thing i just can't see it being a brake problem, but stranger things have happened, it might not be your problem but wouldnt hurt to try....good luck........http://www2.dana.com/pdf/5315-3.pdf
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