View Poll Results: Running a dana 30 with vacuum disconnects witch is better
Block off vacuum disconnects and run straight axle shafts
6
85.71%
Install a 4x4 posi-loc cable lock system
1
14.29%
Voters: 7. You may not vote on this poll
Dana 30 with Vacuum Disconnect
Thread Starter
CF Veteran
Joined: Jun 2011
Posts: 1,492
Likes: 0
From: KY
Year: 2000
Model: Cherokee
Engine: 4.0 L6
Dana 30 with Vacuum Disconnect
ok so i just bought a dana 30 high pinion with Vacuum Disconnect here's my plans for it spartan locker, superior 4.56 gears to match the rear, superior axle tube seals and welding on a rustys gusset kit...ok so my question is should i buy a Differential Cable Lock System in replace of the Vacuum Disconnect or should i put a block off plate on it and run my straight axle shafts out of my stock LP dana 30...Witch is better and Y
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,577
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Member
Joined: Oct 2010
Posts: 223
Likes: 0
Model: Cherokee
I made my own posi lock cable from napa for like $30 and love it , if u do the block off plate and 1 piece axel u have to get ur front drive shaft balanced if u replace the vac diaphragms ur vulnerable to malfunction in water doing posi cable ur weak point I would say is probably the collar that locks the two piece axel together
CF Veteran
Joined: Nov 2008
Posts: 7,874
Likes: 100
From: Northern Ontario, Canada
Year: 1990, 1999, 2000
Model: Cherokee
Engine: 4.0
carry lots of spare shafts and get good at swapping them out. cause a locked disco axle will snap u-joints every 100 feet on a tough enough trail due to the smaller 260 u-joint.
pull the small seal out and put in new seals at the pumpkin and throw in some RCV shafts, or at least shafts with the larger 297 joints.
been there, done that...
pull the small seal out and put in new seals at the pumpkin and throw in some RCV shafts, or at least shafts with the larger 297 joints.
been there, done that...
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,577
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Seasoned Member
Joined: Feb 2010
Posts: 262
Likes: 1
From: Montana
Year: 2000
Model: Cherokee
Engine: 4.0
I see people asking about balanced driveshafts if they slide the collar over, correct me if I'm wrong but with no hubs the shaft is always spinning regardless of the collar being locked in.
Trending Topics
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,577
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Technically no, because the spider gears in the diff move instead of the driveshaft.
As for a balanced driveshaft on vehicles equipped with CAD, they are. No worries as long as U-joints and cardon joints are in good shape and well lubed.
I've done the CAD elimination as per the above link on 2 or 3 Jeeps with no issues.
As for a balanced driveshaft on vehicles equipped with CAD, they are. No worries as long as U-joints and cardon joints are in good shape and well lubed.
I've done the CAD elimination as per the above link on 2 or 3 Jeeps with no issues.
Newbie
Joined: Mar 2012
Posts: 13
Likes: 0
From: Chadron, NE
Year: 1989
Model: Cherokee
Engine: 4.0l
dana30 w/disco & spartan
I noticed with 4.11 gears to install the Spartan locker, you have to remove ring gear to remove the center pin. The E clip cannot be replaced. The "middle" shaft floats side to side due to not being able to replace the clip. Has anyone tried to shim the pass. side shaft towards the carrier? Will this cause binding? There seems to be excessive space between middle and outer shafts. To me a weak spot to fail.
Thread
Thread Starter
Forum
Replies
Last Post
sluger17
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
Jul 8, 2023 07:08 AM
extrashaky
Other Vehicles. Other Jeep models & cars and trucks of other makes
17
Jun 17, 2023 03:57 PM
Lightning_19k
Modified XJ Cherokee Tech
14
Oct 3, 2015 09:52 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)