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11-16-2008, 10:02 PM
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#1 |
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It'll buff out
Join Date: Mar 2008
Location: Blanchard,Ok
Posts: 1,376
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How come my truck just started spinning both tires like a posi?
Me and my friend went out earlier to burn some rubber and gas and it usually just spins one side buti did a burnout and it spun both of them and now it does both of them everytime. It made me happy finally seeing 2 black marks instead of 1.
But i was just wondering why it would start doing that |
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11-16-2008, 10:07 PM
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#2 |
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Registered User
Join Date: Feb 2004
Location: Albany, NY
Posts: 522
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Re: How come my truck just started spinning both tires like a posi?
Son,
sit down for a minute. We're going to have a talk about the posi-fairy. HAHAHA dunno. interested in finding out tho!
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RN U OVR |
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11-16-2008, 10:10 PM
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#3 |
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It'll buff out
Join Date: Mar 2008
Location: Blanchard,Ok
Posts: 1,376
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Re: How come my truck just started spinning both tires like a posi?
Haha im not sure i just did a burnout and it started sliding side to side and i looked back and i saw 2 marks, so i just kept doing more cause it made me really happy lol
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11-16-2008, 10:15 PM
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#4 |
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Registered User
Join Date: Feb 2004
Location: Albany, NY
Posts: 522
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Re: How come my truck just started spinning both tires like a posi?
surprised you stopped long enough to come tell us
 your sig line makes a little more sense now!
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RN U OVR |
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11-16-2008, 10:19 PM
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#5 |
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Phone's ringin Dude.
 
Join Date: Mar 2007
Location: Colorado Springs
Posts: 1,426
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Re: How come my truck just started spinning both tires like a posi?
If your trucks anything like mine, random stuff decides to work every now and then. You probably have a posi rear, it just wasn't engaging before.
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 I pitty the fool with only two headlights!!2003 SILVERADO SS--THE NEW GIRL 1972 GMC--THE OLD GIRL |
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11-16-2008, 10:39 PM
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#6 |
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Old Skool Club
Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
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Re: How come my truck just started spinning both tires like a posi?
Maybe the non-driven side gave in due to peer pressure from the other side.
Air Lift made a lot of money off of the single-track rear ends by their usage. You could load up the driven side and increase the traction on it, to the point that the other side would grip and give you more equal traction.....without a posi-trac.
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Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
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11-16-2008, 10:45 PM
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#7 | |
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Registered User
Join Date: Jun 2007
Location: DFW (Forney)
Posts: 1,529
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Re: How come my truck just started spinning both tires like a posi?
Quote:
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'58 SWB Fleetside...Front & Rear Porterbuilt Dropmember, 6.0 LS /4L60E. Accuair E-level, 20 Billet Specialties (Vintecs) '63 Buick Riviera ... AccuAir E-level, 20" Billet Specialties (Vintecs) http://67-72chevytrucks.com/vboard/s...=528853&page=5 |
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11-16-2008, 11:29 PM
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#8 |
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ASE master tech/machinist
Join Date: May 2008
Location: Blue Mound Texas
Posts: 303
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Re: How come my truck just started spinning both tires like a posi?
My 70 short bed used to do the same thing, as well as my 64 short bed. I could turn the wheels and they'd turn in the same direction like a posi. Turns out my buddy that set up the gears put an extra set of shims behind the spiders. But on yours I dunno
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 "I sit here and I pray in my broken down Chevrolet....."
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11-17-2008, 12:21 AM
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#9 |
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Registered User
Join Date: Jan 2008
Location: SURREY BC, CANADA
Posts: 278
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Re: How come my truck just started spinning both tires like a posi?
could be a lil moisture on the road or the cool fall air giving a lil more power. i know i took my moms vette down the street and it was more peppy than normal
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- Josh Im not white trash, I'm one step above that..... more like white clutter |
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11-17-2008, 12:58 AM
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#10 |
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Registered User
Join Date: Dec 2006
Location: Pueblo West
Posts: 264
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Re: How come my truck just started spinning both tires like a posi?
The clutches in you posi are pobably burned out. when they get hot enough they will grab, Or your gear oil is really dirty and wont fully let them ingauge. It happened in my old chevelle, I looped it the first time it happened! I would pull the cover and spray out the pumpkin really good with brake kleen, Maybe you can dislodge whatever is in there. You can find out what gears while your at it.
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11-17-2008, 04:12 PM
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#11 | |
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Registered User
Join Date: Feb 2004
Location: Albany, NY
Posts: 522
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Re: How come my truck just started spinning both tires like a posi?
Quote:
Remember that the pumpkin is dish shaped.. so when you spray brakleen, be careful it doesn't spray directly back into my face... ummmmm... YOUR face! i meant YOUR face. i would never do something so dumb 
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RN U OVR |
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11-18-2008, 05:47 PM
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#12 |
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Enjoying left field
Join Date: Jun 2008
Location: Dillon Montana
Posts: 900
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Re: How come my truck just started spinning both tires like a posi?
Did that with carb cleaner and a carb once.
 Blasted down one hole, and got an eye full out of another hole. Hurt like a mother, but my eye was sure clean.
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11-18-2008, 08:34 PM
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#13 |
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Restoration Desperation
Join Date: Aug 2006
Location: Tennessee
Posts: 373
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Re: How come my truck just started spinning both tires like a posi?
OK, Cody....it's been 2 days, quite long enough to get out your leatherman & undo the 10 or 12 bolts holding the rear end cover on so you could look inside.
WELL????????? RD |
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11-18-2008, 09:55 PM
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#14 |
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Senior Member
Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: How come my truck just started spinning both tires like a posi?
After the spider gears weld themselves to the center pin from doing too many single wheel burnouts, you will have posi for a while, Then the pin starts to spin in the case and eventually parts come out the rear cover. How do I know this ????
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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11-17-2008, 01:22 AM
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#15 |
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BlahBlahBlah
Join Date: Feb 2002
Location: Wa.
Posts: 19,837
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Re: How come my truck just started spinning both tires like a posi?
*Note to self..Never buy used parts from allen123*
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11-17-2008, 09:07 AM
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#16 | |
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It'll buff out
Join Date: Mar 2008
Location: Blanchard,Ok
Posts: 1,376
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Re: How come my truck just started spinning both tires like a posi?
Quote:
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11-17-2008, 03:26 PM
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#17 |
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upgrading to an older model
Join Date: Aug 2007
Location: Sacramento, KY
Posts: 346
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Re: How come my truck just started spinning both tires like a posi?
Well one night at the track (dirt track racing), They decided to tech to top 5 finshers...Posi/welded rear-ends are illegal. They jacked up one side gave the wheel a spin and ...NO SPIN. THE REAR-END IS LOCKED. He was shocked...according to him "I can't even weld so how could I have welded it up?" Anyway, long story short, he came back the next week and said that it had been leaking fluid and got too low causing it to over heat and "welded" everything up to "accidentally" make a locked rear-end. Take it for what you want but it could happen...
 
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68 stepside, short-box, multi-colored (for now) 
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11-17-2008, 01:24 AM
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#18 |
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Account Suspended
Join Date: Jun 2000
Location: over yonder
Posts: 14,270
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Re: How come my truck just started spinning both tires like a posi?
cool ... extra shims and I got a posi!
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11-19-2008, 12:21 AM
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#19 |
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My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: How come my truck just started spinning both tires like a posi?
your open rearend is so worn out, you spider gears are starting to lock up!
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11-19-2008, 01:32 AM
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#20 |
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Registered User
Join Date: Jun 2005
Location: South Texas
Posts: 11
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Re: How come my truck just started spinning both tires like a posi?
The same thing happened to a friends truck years ago. It started to act like a posi so he did a few burnouts then the diff completely disintegrated! It was a 4x4 so he drove it home on the front axle with horrible grinding noises coming from the rear.
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1972 K10 Custom Deluxe SWB 350/350/205 AC About to be put back together after sitting in pieces for 23 years. My father (original owner) says "IT'S ABOUT TIME! 
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11-19-2008, 10:56 AM
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#21 |
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Registered User
Join Date: Mar 2007
Location: Connecticut
Posts: 581
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Re: How come my truck just started spinning both tires like a posi?
HaHa
Sounds like what happened to me with my 70 camaro years back, only when the spiders came apart the C clips fell out........and then I saw my tire about 3' away from the car in my rear veiw mirror, Huh? So I get out and BOTH axels have slide out of the tubes and my car is almost on the ground.What a startling sight I can tell you for a 16 year old! Anyway I fixed it, so I could do some more burn outs chas
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"I'll Procrastinate Tomorrow" quote by LEEVON 71 K10 long fleet (sons truck) new 370hp 355, sm465 np205, 3.73's 33's 70 K20 long fleet 98 G3500 work van |
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11-19-2008, 11:11 PM
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#22 |
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It'll buff out
Join Date: Mar 2008
Location: Blanchard,Ok
Posts: 1,376
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Re: How come my truck just started spinning both tires like a posi?
thats kinda scary lol i did another burnout and it was a single
about how much does it cost to fix it |
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11-21-2008, 07:06 PM
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#23 | ||
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Senior Member
Join Date: Dec 2006
Location: Studio City, Calif.
Posts: 2,861
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Re: How come my truck just started spinning both tires like a posi?
Quote:
Quote:
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'69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, 2nd owner, Work-Truck supreme. Best $300 I ever spent. |
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11-21-2008, 09:16 PM
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#24 |
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Registered User
Join Date: Feb 2008
Location: Grande Prairie Alberta
Posts: 261
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Re: How come my truck just started spinning both tires like a posi?
i know when the roads are REALLY slick of after i go for a car wash both tires will spin, other than that i leave that embarrassing single mark. buddy used to have a late 70s pontiac (dont remember model) and he did a burnout in front of his house, at first it was just axel hoped then for some reason the rear window exploded and it stopped hoing and started to burnout, the tires went so fast that it started to burn both. those marks are still there after surviving 2 winters and rainy summer. srry for going a little off topic
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eh  1970 Chevy C20 daily driver 1975 GMC Jimmy 4x4 project  1966 GMC C10 Dad's project 
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11-21-2008, 12:55 PM
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#25 |
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Senior Member
Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: How come my truck just started spinning both tires like a posi?
Might want to pull the rear cover and have a look in there. Post up some pics if you can, maybe it is ok.
Could just be the weight of your buddy (no insult intended) holding the right tire down. When you are by yourself there is less weight on that side. Just a theory.
__________________
1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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