Question about 2002 GMC Envoy

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In 4 wd rear diff slips ocassionally and seems like its binding sometimes

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  • Joey Barrs
    Joey Barrs Nov 07, 2014

    I recently had drive shaft fall off and I redone the universals and reset computer... I had to drive it in 4 with no rear shaft and front wheel drove fine

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1 Answer

What is the question then ?

You have what you feel is a problem,
& enough info to explain to a dealer
or local repair shop

If someone was to guess & that is all anyone
without the vehicle to test, can do,then you still
have to have the problem diagnosed to find the cause

Posted on Nov 07, 2014

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1 Answer

What oil must i put in the diff of a ford 4000 tractor with the oil pump for lift inside the diff


80-90 oep diff oil unless it is a limited slip diff in which case you use special limited slip diff diff oil
don't know if it is limited slip diff diff
you can check by jacking up the rear end and having a friend turn a rear wheel
by holding one wheel the other wheel will be turning in the forward direct as that is what limited slip diffs do diff do ( both drive )
other than that call your local manufacturer service center and ask

Mar 15, 2017 | Cars & Trucks

1 Answer

Was stuck using 4 lo. Had 3 wheels spinning except l/rear,just sat doing nothing.


4 wheel drive is unfortunately a bit of a myth as in 4 wd any two wheels with no traction will not move you any where
so if you have both rh side wheels slipping,
go no where
left front right rear ,
going no where
the wheel that was not turning was the only wheel that had traction but through the differential action the other wheel spun faster
now with limited slip diff centers , both wheels have to turn as the differential action locks up so yes you would be going some where.
posi traction is the same idea
vehicles that have limited slip diffs are Toyota and Nissan as standard with some Nissans having limited slip diffs in the front drive axle as well
now if you are doing a lot of 4wd driving in adverse conditions , you need to have locker diff centers ( available from off road shops ) as they physically lock the diff actions ( with the flick of a switch) with the result if all 4 wheels are spinning and you are not moving , your stuck but if one wheel has traction you keep moving

Nov 12, 2015 | Cars & Trucks

1 Answer

I have a 1994 Chevy 1500 z71 I have replaced the front diff with the same gear ratio and know my four wheel drive is binding up and idk what is causing it to do that I need help


4wd vehicles in the main do not have 3rd diff in the transfer case (unlike all wheel drive vehicles) to allow uneven torque between front and read diffs to dissipate
that means that if you are driving on hard surface ( sealed roads ) there becomes what is referred to as a torque wind up in the drive train .This places all gears ,chains under extreme pressure and prevents gear changing ( shifting out of gear)
To overcome this problem, only select 4wd when driving in snow ,rain, mud, gravel or any surface that allows the wheels to slip and so even out the torque wind up.
If you had to replace the front diff that may have been the reason as front diffs are predominently weaker than rear diffs because of the way the teeth act on each other and the torque wind up will break the weakest part

Jul 22, 2015 | Cars & Trucks

1 Answer

Have 2003 f150 4wd light on but will not lock in


IF you have both front wheels in the air then either wheel will spin freely unless you have diff lock or limited slip diff. That is the nature of a diff..wd means that all 4 wheels drive but only when you have a limited slip diff or a diff locker. in action . If you have both of one side wheels in a bog you will not go any where.

Jan 05, 2014 | Cars & Trucks

1 Answer

96 pajero auto no power front right wheel i 4wd trans fluid level ok


wd diff lock only locks the front to rear diffs not the 2 wheels on the same diff. To have both front wheels driving as you require will need limited slip diff in front or locker in front Be hard to steer in tight areas but they are available.

Apr 22, 2013 | Cars & Trucks

1 Answer

Rear wheels lock up at times,dont do it with heavy load. checked brakes,seems ok. pulled rear axels out drivers side splines worn,all bearing seems ok


look in rear diff. worn gear is binding up. not going to last long. fix now before it blows the whole carrier and everything.also A worn U joint in driveshaft could cause this

Mar 15, 2013 | 2000 Chevrolet Silverado 1500

1 Answer

99 Grand Cherokee. Started with locking or binding with loud clunks. After long drive, rear diff was smoking and was replaced. Just drove it and after shifting into all time 4wd and then back to 2wd did it...


Sounds like a bad transfer case. Generally what you experienced is caused by a tire mis-match but can also happen by itself sometimes. GC's use a fluid coupler that is supposed to engage 4wd when tires begin to slip. (coupler is pretty much the same as the mechanical clutch unit on your fan, only larger) If the coupler fails, symptoms like yours happen.

Mar 27, 2011 | 1999 Jeep Grand Cherokee

2 Answers

When I'm in 4 wd the front wheels feel like the brakes are being applied when I make a sharp turn. No problems when driving straight or in 2 wd.


It sounds like you are driving in 4wd drive on dry pavement. The front drive axles do not work like the rear differential. When you turn, the outside front wheel must travel farther than the inside wheel, therefore they are traveling through the turn at different speeds. If you are on dry pavement, this causes the gears to bind. You don't notice this on slick surfaces because the outside wheel will slip instead of bind up the gears. You should not use 4wd on dry pavement. That's the advantage of push button, or shift on the fly, 4wd. You can shift back to 2wd when you encounter dry pavement. All wheel drive vehicles don't have this problem because they have a limited slip front differential as opposed to a locking differential on 4wd. Hope I didn;t confuse you too much.

Dec 21, 2010 | 2004 Ford Ranger

1 Answer

Do i need a differential case and pinion ket or just bearings


if you have limited slip, make sure you have fresh fluid and limited slip additive. does the differential whine or make noise? if so thats a dead giveaway of a bearing or gear problem, look for metal debris or chunks when you pull the diff cover off

May 07, 2009 | 2005 Dodge Ram 3500

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