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    Repair or replace G80?

    Winter is here in full force in Alaska, and so I've been working on my truck, taking care of maintenance items that have gone too far. After dropping the cover in my rear differential, I notice that the small gear mechanism for the Eaton G80 has sheared a number of splines. This leaves me in...
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    OBD cable for 1995 GMC 2500?

    Hey folks, just wondering what cable & software ya'll are using to monitor the OBD port. I've got a 1995, that I'd like to scan/log, so any recommendations on which cable and software would be compatible would be greatly appreciated.
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    Rebuild kit for NP241-C?

    Looking for recommendations as to which kit I should get, and from whom. Truck is a 95 K2500 w/ 4L60E. Thanks in advance, -Eric
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    285/75/16's on stock K2500?

    I've got a 1995 GMC Sierra K2500 (heavy half, really, as it's a six-lug) 4x4. Looking to put new tires on it, and a friend recommended the following tires: Goodyear Wrangler Duratrac 285/75/16's I'm using the stock rims, on the stock suspension. Will these fit? Would hate to spend that...
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    1995 transmission and transfer case interchange?

    Hello all. I have a 1995 GMC Sierra SLE with 5.7 TBI, Automatic 4L60E, and an NP241 manually shifted x-fer case. With 200+ miles on the odometer, but an above-average body and frame, I'm rebuilding the drive line a bit at a time *before* things fail. Just finished rebuilding the engine...
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    1995 ECM Pinout

    Hey folks, was wondering if those of you with a 1995 FSM could scan the ECM/PCM connector pinout? I'm trying to chase down an electrical gremlin, and knowing which wires at the ECM go where would be a huge help. FYI: Truck is a 1995 GMC K2500 5.7 w/AT
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    88-95 EGR System Testing

    This guide will help the home mechanic test the EGR system on your 88-95 GMT400 truck, and does not require the use of a scan tool. EGR issues are relatively simple to diagnose, if you have the proper tools. You'll need: Eyeballs Vacuum pump Multimeter First things first...
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    1995 TBI to 80's 350?

    Any reason I can't swap the fuel injection system from my 1995 5.7 TBI to an 80's 350? Is there anything I would need to buy for such a conversion? Why would I want to do this? The original engine in my truck has >200k miles on it, is tired as all get-out, and I can buy an 80's...
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    Troubleshooting 1995 HVAC controls

    Truck is a 1995 ECSB k2500 w/5.7, auto transmission and A/C. Problem: Heat zone selector does not work Changing the selector from floor to blend to defrost does nothing; heat just blows more or less equally from all orifices no matter what setting the selector is on. Is there a...
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    1995 NP241 pops into neutral on decel or bumpy roads?

    Having some issues with a 95 GMC Sierra 2500. As the thread title says, my transfer case will pop out of 2Hi into Neutral (sometimes) when coasting down a long hill. Adding bumpy roads (downhill) makes it happen more often. Sometimes accompanied by a 'thump', but as often as not, there...
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    What oil filter?

    1995 GMC Sierra 2500 4x4 w/5.7ltr engine, A/T Since the oil cooler lines, and the oil cooler gasket & o-ring are all leaking like a sieve, I am going to replace the oil cooler adapter with a straight-down unit like this: (Mr. Gasket Part #1272) thereby eliminating all the darn leaking...

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