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12-05-2011, 02:12 PM
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#1 |
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Registered User
Join Date: Nov 2011
Location: wichita falls TX
Posts: 28
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Rear end help
I have a 72c10 and would like to know if it has limited slip the # on the axel tube is THB W158 2E. I took the rear cover off and counted the teeth it is a 307 but im just not sure a bout the limited slip part any info would be great.
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12-05-2011, 04:05 PM
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#2 |
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Registered User
 
Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
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Re: Rear end help
A quicker way to start is to check the glovebox for the build sheet and see if it is listed in the option group. Then check the passenger side behind the seat for a sticker/label stating that the vehicle is equipped with the positraction axle.
Next, you can jack up the back of the truck and rotate one of the wheels. Usually both wheels will rotate in the same direction. If the wheels rotate in opposite directions...usually (not always) the differential is an 'open' (non-posi) type. There are a few exceptions to this. Good Luck Coley
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....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 |
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12-05-2011, 04:44 PM
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#3 |
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Registered User
Join Date: Nov 2009
Location: maine
Posts: 2,315
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Re: Rear end help
Here a couple pics, might help. left is a posi, Right is an open diff.
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1972 C10 Deluxe.Shortbed. 402/400. A/C, white interior, needs complete restore. Project Red, white and blue. Used to be a Longbed apperently. http://67-72chevytrucks.com/vboard/s...d.php?t=451950 1971 c10 step 250 3 OTT 1969 c30 TOW-MATER. 307 4 speed, holmes 440 body. http://67-72chevytrucks.com/vboard/s...d.php?t=451082 2006 CTS-V LS2 6spd. |
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12-05-2011, 05:47 PM
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#4 |
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Registered User
Join Date: Nov 2011
Location: wichita falls TX
Posts: 28
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Re: Rear end help
My rear end looks like the one on the left, but the springs in mine are real close to each other. Thers no gap in between them like the one in the pic. So i wonder if it is posi or not ?
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12-05-2011, 08:56 PM
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#5 |
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Registered User
Join Date: May 2000
Location: Storm Lake, Ia
Posts: 1,449
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Re: Rear end help
My book shows THB = 1971 C-10 3:07 Posi
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12-05-2011, 09:12 PM
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#6 | |
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Registered User
Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
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Re: Rear end help
Quote:
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 |
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12-05-2011, 10:05 PM
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#7 |
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Senior Member
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Rear end help
[QUOTE=Solver;5049793]My book shows THB = 1971 C-10 3:07 Posi[/QUOTE Nuff Said
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American" 
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12-05-2011, 11:46 PM
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#8 | |
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Eat, Sleep, Drive a Chevy
Join Date: Apr 2010
Location: the town of the cow, Texas
Posts: 1,152
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Re: Rear end help
Quote:
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Trey Silence may be Golden, but Duct Tape is Silver! 72 Short Step 57 "big window" short step |
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12-06-2011, 12:19 AM
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#9 |
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Registered User
Join Date: Oct 2010
Location: Riverton Wyoming
Posts: 93
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Re: Rear end help
Where is the number on the axle tube?I'd like to check mine as well (replacing with a locker rear end and need to know the size of the carrier )
Posted via Mobile Device
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"Its better to burn out than it is to rust!" '70 GMC C10 2wd. 2.02 aluminum heads. TH400 trans. 450WHP '04 Nissan 350z DD, Twin Turbo, 600whp, drag beast! |
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12-06-2011, 12:36 AM
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#10 |
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Registered User
Join Date: May 2000
Location: Storm Lake, Ia
Posts: 1,449
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Re: Rear end help
axle numbers here but really have to clean well as they aren't cut to deep
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12-06-2011, 01:08 AM
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#11 |
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Registered User
Join Date: Oct 2010
Location: Riverton Wyoming
Posts: 93
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Re: Rear end help
I've got a 2wd short step gmc. I'll take a peak
Posted via Mobile Device
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"Its better to burn out than it is to rust!" '70 GMC C10 2wd. 2.02 aluminum heads. TH400 trans. 450WHP '04 Nissan 350z DD, Twin Turbo, 600whp, drag beast! |
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12-06-2011, 10:58 AM
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#12 | |
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Registered User
Join Date: Nov 2011
Location: wichita falls TX
Posts: 28
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Re: Rear end help
Quote:
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12-06-2011, 11:01 AM
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#13 |
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Registered User
Join Date: Nov 2009
Location: maine
Posts: 2,315
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Re: Rear end help
The fact that the numbers on the axle tube may read posi, and the SPID read posi, doesn't mean there is one. I have bought several cars over the years that said posi (g80) rear, and have not had one. the best way is to open it up.
__________________
1972 C10 Deluxe.Shortbed. 402/400. A/C, white interior, needs complete restore. Project Red, white and blue. Used to be a Longbed apperently. http://67-72chevytrucks.com/vboard/s...d.php?t=451950 1971 c10 step 250 3 OTT 1969 c30 TOW-MATER. 307 4 speed, holmes 440 body. http://67-72chevytrucks.com/vboard/s...d.php?t=451082 2006 CTS-V LS2 6spd. |
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