Driving without rear drive shaft? - Page 4

mudmonkey2400 · 02-15-2007, 08:28 AM

Quote:

Originally Posted by Big Guy

I currently have the rear driveshaft removed awaiting my new Tom Woods shaft. Installed the SYE/CV this weekend and took it for a 5 mile drive (less than 45 mph) yesterday to check out the new lift and tires. About half way through the drive my check engine/transmition light came on. I just figured that it was because the rear driveshaft was removed, but after reading this post I'm starting to worry that something else may be wrong since no one else has mentioned caution light.

Like mrblaine said, do you have your speedo gear in, or put the right place correctly? I put mine in the wrong position (I think there's only 4 positions it can go in) and I had a check engine light come on, because the speedo is linked to the idle air controller. Mine would die on me when I'd stop suddenly because of this.

I pulled the speedo and put in the right position and it ran fine/no light.

Combatsylvania · 02-15-2007, 08:29 AM

Quote:

Originally Posted by mrblaine

Do you do any offroading? If you do, it shouldn't be hard for you to recognize that in 4 low the low gearing is able to apply the available motor torque in such a manner as to more readily break components. Take the rig down a hill and put the front tires against rocks and force them to climb up and over and you have nearly all the available torque transferred to the two front tires with most of the weight on them and rarely if ever does that break the chain.

You can drive with the rear axle removed for as long as you can stand it at any safe speed and it just won't hurt a thing.

I realize that the chain sees a lot of punshment offroad.. I just figured its not a constant strain on chain.. like I said, ive never done it (yet), ive never had a reason to (yet).. its my oppinion that the chain is going to see a lot more stress, and increase the risk of it breaking/stretching... I didn't say that it would definately break...

when you say "safe" speed, do you mean legal speed.. or slowing down to be safe becuase you got no rear shaft?

cyclerider105 · 02-15-2007, 12:19 PM

Quote:

Originally Posted by Big Guy

I currently have the rear driveshaft removed awaiting my new Tom Woods shaft. Installed the SYE/CV this weekend and took it for a 5 mile drive (less than 45 mph) yesterday to check out the new lift and tires. About half way through the drive my check engine/transmition light came on. I just figured that it was because the rear driveshaft was removed, but after reading this post I'm starting to worry that something else may be wrong since no one else has mentioned caution light.

I've got an SYE too. I've been driving on my 2004 without the rear for 2 days now and no light. So, I agree that it has to be something else like your speedo sensor.

Combatsylvania · 02-15-2007, 12:53 PM

after talking with a friend of mine who runs a 4x4 shop, i will eat my words.. I was wrong...

running with no rear shaft is not extra hard on the tcase.. ofcourse you are using the chain, so a snapped chain will happen eventually... but its no harder than running 4hi or 4lo offroad..

i still think its not prefferable.. as if you chain lets go your stranded, but other than that... run her to work, at any speed you want bud...

**mrblaine** · 02-15-2007, 12:59 PM

Quote:

Originally Posted by Combatsylvania

I realize that the chain sees a lot of punshment offroad.. I just figured its not a constant strain on chain.. like I said, ive never done it (yet), ive never had a reason to (yet).. its my oppinion that the chain is going to see a lot more stress, and increase the risk of it breaking/stretching... I didn't say that it would definately break...

when you say "safe" speed, do you mean legal speed.. or slowing down to be safe becuase you got no rear shaft?

You can ignore sound logic and advice without having the experience to back up your obstinate opinion, but that's all your doing.

The chain will see the most stress in 4 low period. You've failed to take into account the different radii that the front and rear tires turn in. That in and of itself induces bind in the transfercase and abuses the chain, or it would be abuse if that weren't accounted for in the design.

Introduce lockers into the situation and you can't hardly move the rig without some differential between the front and rear tires.

Remove either the front or rear driveshaft and not only does it remove a significant load off the case, the bind goes away as well.

I'm also not quite sure why you are ignoring a lot of info in this thread that is not opinion but experiences when you've admitted you have none.

Driving in front wheel drive with the rear shaft removed for extended periods of time at normal highway speeds is just a non issue as far as the case is concerned. It may drive a bit squirrely, but the case just doesn't care, nor will it shorten it's lifespan.

Rivi · 02-15-2007, 01:07 PM

Quote:

Originally Posted by mrblaine

It may drive a bit squirrely, but the case just doesn't care, nor will it shorten it's lifespan.

dam noncaring transfer case,i heard it doesn't like the rear end either!

Combatsylvania · 02-15-2007, 01:28 PM

Quote:

Originally Posted by mrblaine

You can ignore sound logic and advice without having the experience to back up your obstinate opinion, but that's all your doing.

I object to the term obstinate, if you read my post you'll see that I changed my tune.. I'm not afraid to admit when I'm wrong... and I can do it in a non condescending way.

**Jerry Bransford** · 02-15-2007, 01:35 PM

Quote:

Originally Posted by Combatsylvania

I object to the term obstinate, if you read my post you'll see that I changed my tune.. I'm not afraid to admit when I'm wrong...

It looks like your posts might have overlapped, with Blaine starting his reply perhaps just prior to the same time that you made your previous point owning up to the issue... they were only minutes apart and he may not have actually posted his response all that quickly. But nevertheless, kudos to you for that!

Combatsylvania · 02-15-2007, 01:42 PM

Quote:

Originally Posted by Jerry Bransford

It looks like your posts might have overlapped, with Blaine starting his reply perhaps just prior to the same time that you made your previous point owning up to the issue... they were only minutes apart and he may not have actually posted his response all that quickly. But nevertheless, kudos to you for that!

yah i figured that after... im not completely inept all the time

...now If I can just learn to keep my fool mouth shut in the first place ill be ahead of the game.

**mrblaine** · 02-15-2007, 01:47 PM

Quote:

Originally Posted by Combatsylvania

I object to the term obstinate, if you read my post you'll see that I changed my tune.. I'm not afraid to admit when I'm wrong... and I can do it in a non condescending way.

Post overlap and until you changed your tune you were not anything but obstinate, as in refusing to listen to others with more experience and logic than you showed up to that point.

Combatsylvania · 02-15-2007, 01:57 PM

Quote:

Originally Posted by mrblaine

Post overlap and until you changed your tune you were not anything but obstinate, as in refusing to listen to others with more experience and logic than you showed up to that point.

well i did slowly change my tune, originally I thought it was certain death,.. then after reading your post i thought it was merely added wear... then after talking to someone I know actually builds the things I completely agreed..

eitehr way, its water under the bridge.... hug?

cyclerider105 · 02-15-2007, 02:49 PM

WOW, what a great thread! Not only did I get my original question answered (It IS OK to run with the rear drive shaft removed), but we have had some real bonding take place here. It IS a JEEP thing!

**mrblaine** · 02-15-2007, 03:39 PM

Quote:

Originally Posted by Combatsylvania

well i did slowly change my tune, originally I thought it was certain death,.. then after reading your post i thought it was merely added wear... then after talking to someone I know actually builds the things I completely agreed..

eitehr way, its water under the bridge.... hug?

You were already talking to someone who has taken apart and built and re-built several of them. You just didn't stop talking long enough to find out.

Combatsylvania · 02-16-2007, 07:11 AM

Quote:

Originally Posted by mrblaine

You were already talking to someone who has taken apart and built and re-built several of them. You just didn't stop talking long enough to find out.

yah i know you know your stuff. but I dont "know" that... theres a million "experts" on the web... that coupled with the fact that this was a rough week up here put me in an argumentative (is that a word?) mode.

... so I can pull the rear shaft on a TJ without a SYE? anything else need to be done to it to run on the fronts only?

**mdm** · 02-16-2007, 08:06 AM

Quote:

Originally Posted by Combatsylvania

... so I can pull the rear shaft on a TJ without a SYE? anything else need to be done to it to run on the fronts only?

Shift TC to 4Hi but I'm sure you already knew that.