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Shoe
GenIII
 
4/06/2007
17:57:42
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 Subject: One Wheel Spin To Two Wheel Spin
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Message:
Hey, I have a '97 2WD Dodge Dakota, V6, 5-speed with the stock 8.25" rear-end in the back, with I think 3.18 gears. I know, weak. The transmission makes up for the high end gears. Anyway, I was spinning my tires one day and instead of one wheel spinning the rear-end locked both tires and I left two black marks, which is rare. I have never had it do this to me. I know that usually if you have a one-wheel rear-end it will not cut a donut, not mine though. I can cut donuts and also if I pull out to the left my ass-end will spin sideways. I thought that this was more common with a LSD, Locker, or "posi-trac" rear-end. Can somebody help me out here. Thanks.
'97 RC V6, 5spd, soon to be V8, 5spd!
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doh
Dodge Dakota
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4/06/2007
18:16:18
|  RE: One Wheel Spin To Two Wheel Spin
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lock in your glove box and you will know
for there it is written
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bludak
Dodge Dakota
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4/06/2007
18:20:43
| RE: One Wheel Spin To Two Wheel Spin
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You must have the sure-grip rear end. My Dakota has it and though it seems as if it should act like a "posi" rear end, it doesn't. I assumed that the sure-grip would have both wheels spin no matter what but if one wheel is on ice and the other on dry pavement, the one on ice spins and the other does nothing. I checked it out with the Mopar dealership and this is how it is supposed to act. If you have equal traction on both tires then they both will spin, example, both on loose gravel or both on dry pavement. I am dissapointed in this and am looking into a different type of carrier because we get a lot of snow where I live. You will more likely have a 3.21 rear end and it should say in the glove box sticker if it is sure grip or not.
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Shoe
GenIII
4/06/2007
18:36:36
| RE: One Wheel Spin To Two Wheel Spin
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Message:
I was on pavement and I left some pretty decent black marks until I hit 2nd gear then it went back to just one wheel. I thought that it was cool. I need a LSD though. I got a rear-end with some 3.55s in it that I need to install since mine is starting to get slack in it.
'97 RC V6, 5spd, soon to be V8, 5spd!
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shoeman
Dodge Dakota
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4/06/2007
20:49:35
| RE: One Wheel Spin To Two Wheel Spin
IP: Logged
Message:
look in your glove box
what don't you understand ?????
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Shoe
GenIII
4/06/2007
20:57:09
| RE: One Wheel Spin To Two Wheel Spin
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Message:
I know what is has in it. I just thought that it was weird. If it had a LSD is would always spin both tires.
'97 RC V6, 5spd, soon to be V8, 5spd!
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ryan
Dodge Dakota
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4/07/2007
00:30:13
| RE: One Wheel Spin To Two Wheel Spin
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no differential spins both wheels at the same time all the time. otherwise the back end of the truck would hop up and down while going around turns. a limited slip or anti-spin rear end will spin both tires from a dead stop and you can do donuts easily. for example, my truck has an open differential and i can spin my one tire all day long, sometimes if it's wet you can end up spinning both, but not for long. shoe- you got lucky and spun both, it wont happen that often. now, my friend's dakota has an "anti-spin" rear end and his spins both all the time, however it isnt totally locked like a detroit locker would be. no truck from the factory comes with a totally locked differential.
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Kowalski
GenIII
4/07/2007
08:33:00
| RE: One Wheel Spin To Two Wheel Spin
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Message:
Yup, an open rear will spin both wheels in a low traction situation; that isn't a good way to tell what you have. My open rear would commonly roost both rear wheels as far as you wanted on gravel - but that would never make it an lsd.
Lead, follow, or get out of the way
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GB2000
GenIII
4/07/2007
09:31:01
| RE: One Wheel Spin To Two Wheel Spin
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Message:
"Yup, an open rear will spin both wheels in a low traction situation; that isn't a good way to tell what you have. My open rear would commonly roost both rear wheels as far as you wanted on gravel - but that would never make it an lsd."
I thought an open rear would start spinning ONE wheel in a low-traction situation (the wheel with less traction) to avoid losing control of the rear-end and sliding sideways.
I know with my truck if one wheel gets on ice, I'm pretty well screwed getting off it quickly...just gotta try and let my idle bring me off it, or keep the wheels straight and give it gas and eventually it'll come off with the wheel spinning.
Same goes with my four-wheeler...my rear wheels are on a solid axle, but my fronts have an open diff. As soon as a front tire loses contact with the ground coming out of a mudpit, I'm stuck.
Don't Mustangs have something similar to a solid axle since they're designed more for drag-racing (over stuff like Camaros/Corvettes which are setup for handling and autocross and stuff)?
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Kowalski
GenIII
4/08/2007
08:13:45
| RE: One Wheel Spin To Two Wheel Spin
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Message:
Sounds like you have some misconceptions there. What I posted is accurate. I'm not talking about a situation where one side has more traction than the other, like you are now describing.
I don't know where you got that idea about mustangs - while they may not handle quite as well as something like a Camarro, they don't have that big a disadvantage - and their owners consider them good handing vehicles. How good can depend on which engine - the v6's are quite agile. If by solid axle you mean a locker; all the ones I know of came with an open or lsd set up - just like the options for our trucks. If you mean solid axle as opposed to independant suspension, that still has nothing to do with how the differential is set up. You can have independent suspension with an open diff, like I have for my front axle, and you can have a solid rear with an open diff too. Since "axle" can refer to the whole assembly, or each axle shaft in the assembly, I can see where you might be a bit confused.
Another misconception is that one wheel spinning will launch straighter than with both spinning. I swapped to lsd in the rear, and can easily launch without the truck trying to go sideways. With both sides of the truck being driven equally, I've found it tends to launch quite straight as long as you don't over do any minor steering corrections.
Lead, follow, or get out of the way
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