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#1
03-08-2005, 08:39 AM
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front diff?
i have a 95 jimmy/blazer with 4X4. i wanted to know if the front if auto locking or standard open. i know the rear is a open diff but if a spin in reverse and stop and try it agin both wheels will lock and either pull me out or spin. is this normal? in the front is it locking or not? it doesn't look like a standard front diff.
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95 jimmy. Vortec V6. 4.3 liter CPI. ,2.5" catco cat, 2.5" cat back with flowmaster muffler split rear., 40 street series, 2 12" audiobahns in custom box,K&N CPI intake system. 71 Mustang coupe- project car. stock 302 with Cobra intake, holley 650dp, afco racing radiator, headman headers, msd distributor, 2.5" from the headers.C4 tranny with shift kit, Mach 1 body lay out. 90 cav, 2.2 tbi, gas getter. 99 chevy s10 zr2, 6" lift, duel exhaust. 5 speed. 
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#3
03-09-2005, 08:18 AM
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Re: front diff?
it would be harder to turn but posi isn't the same as auto locking. auto locking locks in if the wheel slips and when you come to a stop it puts its self in and acts like a posi then. and as soon as your down the road and the fronts spining the same as the rear it slides out and goes back to a open diff. GM sevice tech told me thats how it works. how can you feel much diff in it. if i lock it in to 4X4 its harder to turn the steering wheel. but thats all 4X4's. i know if i try to do it on dry pavment it will drag the front wheels as i'm backing up. can you tell by looking at it or vin #. i know they could have came with one
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95 jimmy. Vortec V6. 4.3 liter CPI. ,2.5" catco cat, 2.5" cat back with flowmaster muffler split rear., 40 street series, 2 12" audiobahns in custom box,K&N CPI intake system. 71 Mustang coupe- project car. stock 302 with Cobra intake, holley 650dp, afco racing radiator, headman headers, msd distributor, 2.5" from the headers.C4 tranny with shift kit, Mach 1 body lay out. 90 cav, 2.2 tbi, gas getter. 99 chevy s10 zr2, 6" lift, duel exhaust. 5 speed.
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#4
03-09-2005, 03:30 PM
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Re: front diff?
I've had these apart, the carrier in them are similar to the rear open end differential. The front axle is not automatic. When the transfer case is in 4WD, the right front axle gets locked into the differential. When shifted out of 4WD, the axle is released.
There was a full time all wheel drive option. The only difference with that front axle, is that it is always engaged. There is no mention of any other front differential in the 95 shop manual.
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#5
03-11-2005, 08:03 AM
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Re: front diff?
i'll try to take a pic of where it says it could have come with locking diffs. if i can't i'll type it word for word. its in the manual where the first one they list is a standard diff and right below it they have auto locking diff. so if they have it in the manual it must have been something you could have ordered. why do you say it was similar but not the same? was there a extra part to it?
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95 jimmy. Vortec V6. 4.3 liter CPI. ,2.5" catco cat, 2.5" cat back with flowmaster muffler split rear., 40 street series, 2 12" audiobahns in custom box,K&N CPI intake system. 71 Mustang coupe- project car. stock 302 with Cobra intake, holley 650dp, afco racing radiator, headman headers, msd distributor, 2.5" from the headers.C4 tranny with shift kit, Mach 1 body lay out. 90 cav, 2.2 tbi, gas getter. 99 chevy s10 zr2, 6" lift, duel exhaust. 5 speed.
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#6
03-12-2005, 04:19 PM
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Re: front diff?
ok i got out the owners manual and this is what it says word for word....."LOCKING REAR AXLE,
If you have this feature, your rear axle can give you additional traction on snow,mud,ice,sand and gravel. It works like a standard axle most of the time, but when one of the rear wheels has no traction and the other does, the locking feature will allow the weel with traction to move the vehicle" i found it on page 2-24. if you have a 95 then you might want to look it up.
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95 jimmy. Vortec V6. 4.3 liter CPI. ,2.5" catco cat, 2.5" cat back with flowmaster muffler split rear., 40 street series, 2 12" audiobahns in custom box,K&N CPI intake system. 71 Mustang coupe- project car. stock 302 with Cobra intake, holley 650dp, afco racing radiator, headman headers, msd distributor, 2.5" from the headers.C4 tranny with shift kit, Mach 1 body lay out. 90 cav, 2.2 tbi, gas getter. 99 chevy s10 zr2, 6" lift, duel exhaust. 5 speed.
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#7
03-12-2005, 05:12 PM
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Re: front diff?
Quote:
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#8
03-13-2005, 08:36 AM
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Re: front diff?
it was about the front but if they had it in one they could have had it in another. so how do you tell if you have a locking rear axle?
__________________
95 jimmy. Vortec V6. 4.3 liter CPI. ,2.5" catco cat, 2.5" cat back with flowmaster muffler split rear., 40 street series, 2 12" audiobahns in custom box,K&N CPI intake system. 71 Mustang coupe- project car. stock 302 with Cobra intake, holley 650dp, afco racing radiator, headman headers, msd distributor, 2.5" from the headers.C4 tranny with shift kit, Mach 1 body lay out. 90 cav, 2.2 tbi, gas getter. 99 chevy s10 zr2, 6" lift, duel exhaust. 5 speed.
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#9
03-13-2005, 09:28 AM
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Re: front diff?
Rear Posi Traction RPO code = G80 on your option label. Or check yourself. Jack up the rear axle, trans in neutral and turn one wheel quickly. The opposite side will turn in the same direction with posi.
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#10
03-13-2005, 01:01 PM
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Re: front diff?
where do you find the label? i bought the truck used.
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95 jimmy. Vortec V6. 4.3 liter CPI. ,2.5" catco cat, 2.5" cat back with flowmaster muffler split rear., 40 street series, 2 12" audiobahns in custom box,K&N CPI intake system. 71 Mustang coupe- project car. stock 302 with Cobra intake, holley 650dp, afco racing radiator, headman headers, msd distributor, 2.5" from the headers.C4 tranny with shift kit, Mach 1 body lay out. 90 cav, 2.2 tbi, gas getter. 99 chevy s10 zr2, 6" lift, duel exhaust. 5 speed.
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#11
03-13-2005, 01:10 PM
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Re: Re: front diff?
Quote:
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2003 Honda Element EX 2002 Kia Spectra (can't "Improve" or wife will kill me) 1986 Dodge Ramcharger (For sale with a 1966 Rambler 660 classic to boot)  " Idon't know how many of them it would've taken to whoop my ass, but I knew how many they were gonna use. Thats a handy little piece of information to have right there." "Ron White" http://www.myspace.com/officer_redneck
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#12
03-13-2005, 06:50 PM
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Re: front diff?
the only code i could find with a g in it said GU5 or GU6. so do you think it has it? i didn't have time to jack it up. i did by chance do i burnout and both tires spun.
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95 jimmy. Vortec V6. 4.3 liter CPI. ,2.5" catco cat, 2.5" cat back with flowmaster muffler split rear., 40 street series, 2 12" audiobahns in custom box,K&N CPI intake system. 71 Mustang coupe- project car. stock 302 with Cobra intake, holley 650dp, afco racing radiator, headman headers, msd distributor, 2.5" from the headers.C4 tranny with shift kit, Mach 1 body lay out. 90 cav, 2.2 tbi, gas getter. 99 chevy s10 zr2, 6" lift, duel exhaust. 5 speed.
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#14
03-14-2005, 08:05 AM
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Re: front diff?
which is better. i think its more of the GU5.
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95 jimmy. Vortec V6. 4.3 liter CPI. ,2.5" catco cat, 2.5" cat back with flowmaster muffler split rear., 40 street series, 2 12" audiobahns in custom box,K&N CPI intake system. 71 Mustang coupe- project car. stock 302 with Cobra intake, holley 650dp, afco racing radiator, headman headers, msd distributor, 2.5" from the headers.C4 tranny with shift kit, Mach 1 body lay out. 90 cav, 2.2 tbi, gas getter. 99 chevy s10 zr2, 6" lift, duel exhaust. 5 speed.
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