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  #1  
Old 11-07-2009, 08:51 AM
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schoust schoust is offline
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Posi issues

Ok Guy's I need to be educated in the facts here. My truck is a 95 that has the heavy duty towing package and I always assumed that the rear end was a posi traction set up? Well I was fooling around the other day in the driveway and it seems that my post has become a one legged wonder? Whats happening here? Is my unit crapping the old bed?? Thanks
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1995 CTD 4x4 100# Plate Full Forward Afc Foot mods set of 3k gov springs from Pdr,022 delivery valves,5x0.14 injecters,Htb2 62/71/13ss, Goerand valve body, converter and various other trany goodies.Pyro,4 inch exhaust,home made valet, and K&n filter, timing bumped to 16*...
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Old 11-07-2009, 09:42 AM
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BigIron70 BigIron70 is offline
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Sounds like your posi clutches are all worn out. If your truck did come with a posi trac you should have been adding the friction modifier to gear oil when changed. You can pull cover and see if open case diff or posi installed. If it is posi most likely clutches are burnt out , if fluid is black and really smelly then clutches are toasted.

TRAC - LOK™/POWER - LOK™ TEST
WARNING: WHEN SERVICING VEHICLES WITH A TRAC - LOK™/POWER - LOK™ DIFFERENTIAL DO NOT USE THE ENGINE TO TURN THE AXLE AND WHEELS. BOTH REAR WHEELS MUST BE RAISED AND THE VEHICLE SUPPORTED. A TRAC - LOK™/POWER - LOK™ AXLE CAN EXERT ENOUGH FORCE IF ONE WHEEL IS IN CONTACT WITH A SURFACE TO CAUSE THE VEHICLE TO MOVE.

The differential can be tested without removing the differential case by measuring rotating torque. Make sure brakes are not dragging during this measurement.

1.Place blocks in front and rear of both front wheels.
2.Raise one rear wheel until it is completely off the ground.
3.Engine off, transmission in neutral, and parking brake off.
4.Remove wheel and bolt Special Tool 6790 to studs.
5.Use torque wrench on special tool to rotate wheel and read rotating torque Trac-lok™/Power-lok™ Test - Typical
6.If rotating torque is less than 22 N·m (30 ft. lbs.) or more than 271 N·m (200 ft. lbs.) on either wheel the unit should be serviced.
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Old 11-08-2009, 07:47 PM
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Dinner Dinner is offline
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I just put a torque wrench on one of my lug nuts and tested that way. Still works on the same principle, it's just you aren't rotating the axle on centre.
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Old 11-08-2009, 09:21 PM
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Phily Phily is offline
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Quote:
Originally Posted by schoust View Post
Ok Guy's I need to be educated in the facts here. My truck is a 95 that has the heavy duty towing package and I always assumed that the rear end was a posi traction set up? Well I was fooling around the other day in the driveway and it seems that my post has become a one legged wonder? Whats happening here? Is my unit crapping the old bed?? Thanks
You might not have a LSD. I've seen many 3500 12v with the tow package w/ open difs, could be possible in the 24v, but's I haven't ran into one yet.
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Old 11-09-2009, 05:34 AM
dozer12216 dozer12216 is offline
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Dealer can probablly bring up a equipment list for unit from serial number.
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Old 11-09-2009, 10:00 PM
nitrousn nitrousn is offline
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My 95 3500 4x4 has an open differential.
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1995 3500 4X4 5 SPEED 4 INCH EXHAUST, AUTOMETER BOOST AND PYRO.
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Old 11-10-2009, 07:12 AM
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schoust schoust is offline
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Hm I have yet to research the Vin to see but this truck came through with everything heavy duty for towing so i can't imagine that it is a one legger?? Hmm maybe it is?? I guess it's time to test it out. Is there anyway to research the Vin without going to the dealer? There aren't to many in my area anymore....
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1995 CTD 4x4 100# Plate Full Forward Afc Foot mods set of 3k gov springs from Pdr,022 delivery valves,5x0.14 injecters,Htb2 62/71/13ss, Goerand valve body, converter and various other trany goodies.Pyro,4 inch exhaust,home made valet, and K&n filter, timing bumped to 16*...
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  #8  
Old 11-10-2009, 01:09 PM
patdaly patdaly is offline
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Do you still have the sticker under the hood? If it is a posi, it will be listed.
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  #9  
Old 11-10-2009, 01:19 PM
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Sea:\>Drive Sea:\>Drive is offline
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Try looking in the glove box, mine has a sticker there that says what the rear is. Maybe they didn't do that in your model year, but its a quick check.
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