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post #1 of (permalink) Old 06-15-2000, 01:55 AM
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running front drive shaft only

for about 2 to 3 days now i have been drivin on my front drive shaft ONLY.im not sure if thats hard on the jeep or not but my problem is when im turning slow i feel this jerkin from what it feels like the front outer tire is jumping or more like a lurchin outward.im wonderin is it because im runnin just the front axle or is it something else.the rear drive shaft is another story.by the way this is a 86 cj7 4inch lift 1 inch body 33inch at's

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post #2 of (permalink) Old 06-15-2000, 08:18 AM
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Re: running front drive shaft only

[img]/wwwthreads_images/icons/tongue.gif[/img] I checked this with my moonguy[img]/wwwthreads_images/icons/wink.gif[/img]axle crew chief, and he says that what you are experiencing is completely normal.[img]/wwwthreads_images/icons/smile.gif[/img]He says to remind you that the u-joints on those axles are NOT constant velocity,[img]/wwwthreads_images/icons/frown.gif[/img]and when power is transmitted with angle on the u-joint, they are....gee....NON constant velocity...[img]/wwwthreads_images/icons/crazy.gif[/img]..which means that they transmit power slow-fast-slow-fast-slow-fast....well, you get the idea.[img]/wwwthreads_images/icons/crazy.gif[/img]THAT is what you are experiencing. THE OTHER thing you will notice is TORQUE STEER. That is when you accelerate hard and the long axle lags behind due to the difference in the amount of "wind up" that the axle has compared to the short side.[img]/wwwthreads_images/icons/crazy.gif[/img] Hey...is this one sharp moonguy[img]/wwwthreads_images/icons/wink.gif[/img] or what? His advice to you is to "take it easy" so you don't end up driving over the center line[img]/wwwthreads_images/icons/crazy.gif[/img]

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Quadra-Trac modified by the crack moonguy[img]/wwwthreads_images/icons/wink.gif[/img][img]/wwwthreads_images/icons/smile.gif[/img][img]/wwwthreads_images/icons/tongue.gif[/img] transfer case team.
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post #3 of (permalink) Old 06-15-2000, 08:56 AM
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Re: running front drive shaft only

And don't take any really sharp corners unless you want to be replacing u-joints. Driving it like that creates a lot of stress on the front end components, the wider the turn you can make the better off you'll be.

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post #4 of (permalink) Old 06-15-2000, 09:00 AM
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Re: running front drive shaft only

[img]/wwwthreads_images/icons/crazy.gif[/img] Er...ah.....Yeah!.....that too![img]/wwwthreads_images/icons/crazy.gif[/img]

CJDave
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post #5 of (permalink) Old 06-15-2000, 10:01 AM
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Re: running front drive shaft only

yeah, what they said.

I drove on the front driveshaft for about 4 months, and did not have any problems. No sharp turns, no hard acceleration. Pay attention and you'll be fine.



[img]/wwwthreads_images/icons/laugh.gif[/img] MNT [img]/wwwthreads_images/icons/laugh.gif[/img]
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post #6 of (permalink) Old 06-15-2000, 12:11 PM
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Re: running front drive shaft only

i am now bowing to you all.you know your s#$%.now at least i know i only have to get them rear u-joints installed and i dont have to replace anything YET. thanks again

post #7 of (permalink) Old 06-15-2000, 12:13 PM
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Re: running front drive shaft only

I did the same for a while also. I rung my AMC 20 axle, and while I was waiting for my Superior one piece I drove around on the front for a while. It is a trip...When I stabbed the pedal I got the front wheels to spinnin' and turned all kinds of heads. It was fun for a while, then I remembered that it was going to cost me down the road , so I quit the spinnin'. You get the drift...seeya...

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