removing the front drive shaft for summer - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today


Like Tree11Likes
  • 1 Post By AirForceAngler
  • 3 Post By Lee H
  • 2 Post By rkan
  • 2 Post By AZrat
  • 2 Post By WillyD
  • 1 Post By JeeperJake2
Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 05-16-2017, 07:03 PM
Thread Starter
  #1
Jeeper
 
Join Date: Jan 2016
Location: northshore mass
Posts: 138
removing the front drive shaft for summer

i was wondering if anyone removes the front drive shaft for the summer months and if you do does in make a difference in power and fuel mileage??

dg166320 is offline   Quote
Old 05-16-2017, 07:08 PM   #2
Jeeper
 
Join Date: Apr 2011
Location: Illinois
Posts: 1,279
Nope. Any gains would be minimal and it's always better to have it and not need it than to need it and not have it.
FUBAR-Retiree likes this.

__________________
2010 JK Islander Edition; Teraflex leveling kit; JKU Springs; Barricade HD Front and Rear Bumpers; 4.88's; Smittybuilt 9500 winch; 295/75/16's on Ultra Mongoose wheels
AirForceAngler is offline   Quote
Old 05-16-2017, 07:13 PM   #3
Supporting Member

WF Supporting Member
 
Lee H's Avatar
 
Join Date: Jun 2014
Location: Upland, Ca.
Posts: 2,048
I can't even imagine. I think you bought the wrong vehicle.
relyt, llessuryort and BOSSTANK like this.
Lee H is online now   Quote
Sponsored Links
Advertisement
 
Old 05-16-2017, 07:25 PM   #4
Jeeper
 
Join Date: Aug 2016
Posts: 15
Quote:
Originally Posted by Lee H View Post
I can't even imagine. I think you bought the wrong vehicle.
I hope you are joking. The rampant "judgyness" that goes on 'round here is tiring. There is a certain element that if u don't have a 4" + lift, go off road 5 times a week and completely drink the Jeep Kool-aide, then "u bought the wrong vehicle/ what are you doing here?"

I like my Jeep, a pot . I don't love it. If a guy wants to explore gas saving measures, who the hell ru to decide he doesn't belong "in the club?

End rant
pismo61 and leftea like this.
rkan is offline   Quote
Old 05-16-2017, 07:30 PM   #5
Jeeper
 
Join Date: Sep 2016
Location: WV
Posts: 2,240
Quote:
Originally Posted by rkan View Post
I hope you are joking. The rampant "judgyness" that goes on 'round here is tiring. There is a certain element that if u don't have a 4" + lift, go off road 5 times a week and completely drink the Jeep Kool-aide, then "u bought the wrong vehicle/ what are you doing here?"

I like my Jeep, a pot . I don't love it. If a guy wants to explore gas saving measures, who the hell ru to decide he doesn't belong "in the club?

End rant
I took it as "if you're concerned about saving .05 mpg, then you shouldn't have bought a Jeep."

Let's face it, they are never going to be an economical daily driver. If that's what you were looking for, you bought the wrong vehicle.

Sent from my SM-T550 using Tapatalk
Prages is offline   Quote
Old 05-16-2017, 08:27 PM   #6
Jeeper
 
Glowyrm's Avatar
 
Join Date: Jun 2016
Posts: 500
No.
Glowyrm is offline   Quote
Old 05-16-2017, 08:40 PM   #7
Supporting Member

WF Supporting Member
 
MTNJeep's Avatar
 
Join Date: Apr 2013
Location: Morris County, NJ
Posts: 695
I like working on my Jeep, but pulling the drive shaft to say a few bucks on gas... not worth knuckle busting and sore back from crawling under it.


Sent from my iPhone using Tapatalk Pro
__________________
2013 JK Rubicon | 3.5" Clayton long arm | 37" Super Swampers on KMC Machete Beadlocks | whole bunch of other stuff.
MTNJeep is offline   Quote
Old 05-16-2017, 08:47 PM   #8
Jeeper
 
Join Date: Aug 2015
Location: Wichita KS/Scottsdale AZ
Posts: 1,453
You'll still have the rolling resistance of the front axle and diff. The only thing you would be saving is the weight of the driveshaft itself being turned. I can't imagine that would make enough difference in fuel economy that you would even notice.
Fungun and zombiesai like this.
AZrat is offline   Quote
Old 05-16-2017, 08:51 PM   #9
kik
Jeeper
 
kik's Avatar
 
Join Date: Dec 2008
Posts: 8,968
No one that I know does. There are so many driving variables that any possible fuel savings won't really be able to be calculated.
kik is offline   Quote
Old 05-16-2017, 08:58 PM   #10
Supporting Member

WF Supporting Member
 
NoGaBiker's Avatar
 
Join Date: Mar 2014
Location: ATL, GA
Posts: 5,662
Quote:
Originally Posted by AZrat View Post
You'll still have the rolling resistance of the front axle and diff. The only thing you would be saving is the weight of the driveshaft itself being turned. I can't imagine that would make enough difference in fuel economy that you would even notice.
Well obviously he meant pulling the half-shafts too!
__________________
NoGaBiker

Current: Anvil '14 Willys JK 6M, 4.56, G2 rear shafts; Eaton e-lockers, G2 D44 axle up front; 4:1 t-case; RE 2.5" long-arm, 35x10.5" Kenda for Street/37" Interco for Trail;
Previous: Hunter Green '92 XJ Cherokee Laredo 4.0; White 92 XJ Cherokee Limited 4.0; '11 Grand Cherokee Overland Hemi-powered drone
NoGaBiker is online now   Quote
Old 05-16-2017, 09:47 PM   #11
Jeeper
 
JeepsandSnow's Avatar
 
Join Date: May 2015
Location: Denver, CO
Posts: 297
I use 4WD twice as much in the summer compared to the winter. I doubt you would see any difference at all.
__________________
2019 - Rubicon 2dr - Bikini
2013 - WRX wagon
Previous - 12 JKU
JeepsandSnow is offline   Quote
Old 05-16-2017, 09:54 PM   #12
Jeeper
 
Join Date: Nov 2016
Posts: 660
Install manual locking hubs
Capt JK is offline   Quote
Old 05-16-2017, 10:02 PM   #13
Jeeper
 
gerry2153's Avatar
 
Join Date: Oct 2015
Location: Salem Oregon
Posts: 429
No
__________________
2015 JKUR Firecracker Red*Cooper SST Pro 37/13.5/17*Level 8 17x9*Carbon Axles F&R*Artex Gussets Truss F&R*2.5" Lift 1.5"BL*Smitty Skids*Smitty X2O 10K*ARB Twin* MC Control Arms
gerry2153 is offline   Quote
Old 05-16-2017, 11:31 PM   #14
Jeeper
 
Tweak's Avatar
 
Join Date: Jan 2013
Location: Whidbey Island, WA
Posts: 6,202
Quote:
Originally Posted by Capt JK View Post
Install manual locking hubs
Yea, spend thousands to save minimal fuel.

No, removing the driveshaft wont save you any money. If you are concerned about it, the change in your couch is probably what you would save.
__________________
Billet 2013 2 door
Dana 60 front, 14 Bolt rear, ARB's, 5.38's, 35 spline Yukon shafts, Reid Knuckles, 40" Comp Trepadors, 3 link front, triangulated 4 link rear, 14" coilovers front and rear, Tom Woods 1310 front, Adams 1350 rear, PSC Hydro assist, SuperWinch 9500,
https://www.wranglerforum.com/f314/t...ad-272841.html
Tweak is offline   Quote
Old 05-17-2017, 12:29 AM   #15
Jeeper
 
rgreen65's Avatar
 
Join Date: Aug 2014
Location: S. Georgia
Posts: 6,372
Quote:
Originally Posted by AirForceAngler View Post
Nope. Any gains would be minimal and it's always better to have it and not need it than to need it and not have it.
I agree with this answer. While the "experts" will tell you to never engage part time 4WD on pavement, there are times you will want it on pavement, just not dry pavement. I have run hundreds of miles in 4HI on pavement, but it was covered in a thin layer of snow and ice. Of course base on your question, you would have the driveshaft (and half shafts) in place in winter.

But some of our southern driving rainstorms have been known to overload the crown and have water on the pavement. In that situation, 4HI will turn the front wheels rather than push them, giving you better traction.

There is also the element that in 4WD, your power is split, putting approximately 50% on each axle rather than all the force on just the rear. That being said, once you are out of that situation you immediately go back to 2HI. Could probably gotten through OK in just 2WD, but since I had 4HI available, I used it. Happened about twice in 8 years I had my 2006 Ram 2500.

I had my Sahara about a month when I needed to use 4WD, but it was in a grassy parking lot that non 4WD vehicles had already greased up with spinning tires and mud. This was in late April, so again a warmer month. Just pulled the short stick and once on hard pavement pushed it back into 2HI. No spinning tires, no slipping and sliding, no mud slinging.
__________________
2003 Light Khaki TJ Rubicon, Manual, Soft Top
2015 Anvil JKU Sahara, Auto, Hard Top - Traded
2017 Chief JKU Chief, Auto, Hard Top
rgreen65 is online now   Quote
Old 05-17-2017, 12:42 AM   #16
WF Moderator

WF Lifetime Member
WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 53,757
I ran without for a few weeks with no noticeable fuel savings. It did feel different though, less drag.. hard to explain.


Sent from AutoGuide.com Free App
kjeeper10 is offline   Quote
Old 05-17-2017, 12:58 AM   #17
Jeeper
 
LowcountryJK's Avatar
 
Join Date: Apr 2015
Location: Summerville SC
Posts: 236
Im just sitting here thinking why dont you just take it out and see. Most of us like working on our jeeps. would be a good excuse to get out there and get dirty. Maybe paint the drive shaft while you are at it!!. but do a really good fuel calculation before and after and let the rest of us know what you find. Nothing wrong with for shitsandgiggles.. everyone gets stuck on being super capable all the time and thats pretty much the atmosphere that comes along with jeep enthusiast or should I say jeep forum enthusiast. But honestly living in the south where theres a ton of mud and we get floods a few times a year I could drive everyday for a year without needing 4wd other than the times I intentionally put jeep in that position. So yea maybe if it's a significant gas saver(I seriously doubt it) it'd be worth it for some. so give it a go @dg166320
__________________
Just here having fun!. Its not personal!
LowcountryJK is offline   Quote
Old 05-17-2017, 05:00 PM
Thread Starter
  #18
Jeeper
 
Join Date: Jan 2016
Location: northshore mass
Posts: 138
sorry i didn't mean to poke a stick in a bee,s nest.i was just curious and yes did see the price on lock out hubs.i would have to save a lot of gas to pay for those.i read that the 3.6 with 285 hp has about 185 hp to rear wheels because of the front axle(don't know if its true)ok lets change gears and discuss the automatic vs.manual trans thing(just kidding) KJEEPER10 ill give it a whirl just to see thanks for all the in-put
dg166320 is offline   Quote
Old 05-17-2017, 05:07 PM   #19
Jeeper
 
Join Date: Aug 2016
Posts: 904
Take the top off and the windshield off that will really help if you want MPG.
How is removing a 4 lbs drive shaft gonna help, the T case is still spinning.. This has to be a joke. Hilarious.
GetRDun is offline   Quote
Old 05-17-2017, 05:10 PM   #20
Jeeper
 
rsmwrangler's Avatar
 
Join Date: Nov 2015
Location: RSM, CA
Posts: 2,300
Better take off the windshield wipers, it's easier, and will give you exactly the same gains
__________________
2013 JKUS A5 | Socal Stock: 2.5" OME Frankenlift | 4.56's | Detroit TT Front | Eaton E-locker Rear | Steel Bumpers | Winch | Rockhard Oil/Trans, Evap Skids ,Rock Sliders | MB 352's 17x9 -12 offs | Nitto Trail Grapplers 315/70/17 | Magnaflow 10416/Dynomax 24246 | Hptuners VCM 3.6 | Superchips Flashcal
My Build
rsmwrangler is offline   Quote
Old 05-17-2017, 06:05 PM   #21
Jeeper
 
moresmoke's Avatar
 
Join Date: Oct 2014
Location: North Dakota
Posts: 330
I would be concerned about proper oil flow in the transfer case without the front driveshaft. If the bottom shaft is not turning it may not pull enough oil up to the top. Then again there may be enough drag to spin the shaft.
As to your power question, there are many places to loose power in a drive train. Just spinning a shaft is not a big factor.
moresmoke is offline   Quote
Old 05-17-2017, 06:51 PM   #22
Jeeper
 
WatchThis!'s Avatar
 
Join Date: Jul 2010
Location: East Texas
Posts: 5,616
Quote:
Originally Posted by moresmoke View Post
I would be concerned about proper oil flow in the transfer case without the front driveshaft. If the bottom shaft is not turning it may not pull enough oil up to the top. Then again there may be enough drag to spin the shaft..
Ummm. Maybe if you only had 1 or 2 ounces of fluid.
__________________
I'm here to participate. I didnt come all this way just to watch.

My jeep's thread https://www.wranglerforum.com/f33/che...st-111461.html
WatchThis! is offline   Quote
Old 05-17-2017, 07:15 PM   #23
Jeeper
 
JeeperJake2's Avatar
 
Join Date: Jun 2016
Location: near Gouge Eye Oregon
Posts: 421
Me & my buddy actually DID take the front drive shaft off for a couple weeks while waiting for some parts & some $ to pay for them.

No gas savings noted. Of course, that was in 1963 and the Jeep was a CJ2.
JeeperJake2 is offline   Quote
Old 05-17-2017, 07:22 PM   #24
Jeeper
 
Join Date: Jul 2014
Posts: 268
You're driving a vehicle that has the aerodynamics of either a brick or a parachute. There would be some fuel savings, you are reducing mass the engine has to move and rotate. You are also getting rid of any drag on the output shaft to the front DS from the t-case. That said, I imagine it would be literally impossible to measure whatever you are saving.

Sounds like a prius would have been a better choice.

Mike
crazymjb is offline   Quote
Old 05-17-2017, 07:32 PM   #25
Jeeper
 
WhiskeyRanger's Avatar
 
Join Date: Aug 2015
Posts: 1,811
Quote:
Originally Posted by moresmoke View Post
I would be concerned about proper oil flow in the transfer case without the front driveshaft. If the bottom shaft is not turning it may not pull enough oil up to the top. Then again there may be enough drag to spin the shaft.
As to your power question, there are many places to loose power in a drive train. Just spinning a shaft is not a big factor.
My buddy has been running without a front drive shaft on his LJ for a few years now. No issues.
WhiskeyRanger is offline   Quote
Old 05-17-2017, 09:10 PM   #26
Jeeper
 
twistedoak's Avatar
 
Join Date: Aug 2014
Location: phila
Posts: 531
Quote:
Originally Posted by kjeeper10 View Post
I ran without for a few weeks with no noticeable fuel savings. It did feel different though, less drag.. hard to explain.


Sent from AutoGuide.com Free App
while they won't save gas I defiantly prefer the feel of locking hub equipped vehicles.
imho I feel they roll better both on and off the gas.
I also think it improves the handling in daily driving.
twistedoak is offline   Quote
Old 05-17-2017, 11:49 PM   #27
Jeeper
 
n3tfury's Avatar
 
Join Date: May 2012
Location: Tucson, AZ
Posts: 3,980
Take your doors and hard top (if that's what you have) off instead.
__________________
.:: 2014 Anvil JKUR | 3.5 Metalcloak | 37" Cooper STT Pros | Teraflex HD Tire carrier | LOD Crawler front bumper | SPod | PowerTank ::.
n3tfury is offline   Quote
Old 05-18-2017, 01:22 AM   #28
Jeeper
 
FUBAR-Retiree's Avatar
 
Join Date: Dec 2015
Location: Kalifornia
Posts: 782
Reminds me of those old Postal Service Jeeps from long ago... No 4X4 at all.
FUBAR-Retiree is offline   Quote
Old 05-18-2017, 02:19 AM   #29
Jeeper

WF Supporting Member
 
Join Date: Sep 2014
Location: Cheyenne, WY
Posts: 3,456
Leave the front on and take the rear off and put it in 4hi. Then it will be a FWD which are more efficient
n3tfury and cdnguy like this.
__________________
'14 Willys JK Traded-In \
☻☻☻☻☻☻☻☻☻☻☻☻--- '18 Ram 2500HD CTD
'14 JKU SarahaTraded-In /
WillyD is offline   Quote
Old 05-18-2017, 09:10 AM   #30
Jeeper
 
JeeperJake2's Avatar
 
Join Date: Jun 2016
Location: near Gouge Eye Oregon
Posts: 421
Cool

Quote:
Originally Posted by FUBAR-Retiree View Post
Reminds me of those old Postal Service Jeeps from long ago... No 4X4 at all.
I actually was employed for a couple years circa 1966-68 driving those dogs.
Not only 'no 4x4' there was 'no gas mileage' advantage according to the shop service supervisor. Those rigs were built to USPS design spec which at the time was not all that interested in 'gas mileage'.
FUBAR-Retiree likes this.

JeeperJake2 is offline   Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off






All times are GMT -5. The time now is 11:35 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, Gladiator, Mopar and Grand Cherokee are copyrighted and trademarked to FCA US LLC.
Wranglerforum.com is not in any way associated with FCA US LLC.