Dana 300 TC front wheel drive only - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep CJ Forum > Dana 300 TC front wheel drive only

Stainless Steel Door Hinge PinsPoly Door Hinge BushingsCurrie Antirock, Currectlync & Lift Kits on Sale!

Reply
Unread 03-17-2013, 09:33 PM   #1
cj7ole
Registered User
1984 CJ7 
 
Join Date: Jul 2009
Location: Highland, Michigan
Posts: 393
Dana 300 TC front wheel drive only

After making some gear grinding noise my Dana 300 transfer case now only lets me get around in front wheel drive. I ended up removing the rear DS just to move it around and find that the rear yoke spins by hand while I am getting power to the front wheels. Even if I had a twin stick, none of the options are front wheel high. Any ideas?

__________________
'84 CJ7, '07 5.3 LMG Chevy, D300, 4L60e, 33's, 4.10, rear Detroit Locker, FG Tub, HOK Tangelo Pearl
Build: http://www.jeepforum.com/forum/f22/ole-jays-cj7-5-3-chevy-swap-1287392/
cj7ole is offline   Reply With Quote Quick reply to this message
Unread 03-17-2013, 11:47 PM   #2
wrongway92407
Member
 
wrongway92407's Avatar
1986 CJ7 
 
Join Date: Nov 2009
Location: Devore Ca.
Posts: 483
Did you check to see if one of the shifter rods didn't come loose and and the pin fall out. If I remember each shift rail has 3 positions and maybe the one shift rail came loose , my twin stick has a front wheel drive only how else would you be able to move the front end over unless it had that option?
__________________
Wrongway
My fleet:
86 CJ7 5.7 vortec. 4L60,D44's,OBA,Air tank bumpers w/D rings detroits,4.88,35" bfg, mt's 9500ti warn
86 CJ7 2.5 detroits, OBA 4.56, air tank bumpers, w/D rings,9500I warn 31x10.5x15, Trxus
86 CJ7 bone stock, w/factory 44 never seen the dirt soon to be for sale
87 Wrangler also never seen the dirt.
wrongway92407 is offline   Reply With Quote Quick reply to this message
Unread 03-18-2013, 02:30 AM   #3
BagusJeep
Web Wheeler
 
BagusJeep's Avatar
1981 CJ7 
 
Join Date: Jul 2009
Location: Bali, Indonesia
Posts: 4,512
If one of these pins no1 fell out or rusted away you could get that.
dana-300-stick.jpg  
__________________
BagusJeep lives in Bali, the Land of Temples.
With a Jeep every prayer counts.

1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1995 Cherokee 4.0 - CHEROKEE
BagusJeep is offline   Reply With Quote Quick reply to this message
Unread 03-18-2013, 02:50 AM   #4
sanmiam
Registered User
1983 CJ7 
 
Join Date: Oct 2005
Location: Philadelphia, PA
Posts: 254
Quote:
Originally Posted by BagusJeep View Post
If one of these pins no1 fell out or rusted away you could get that.
Um, no - you could not. There is no contingency for FWD high in the D300 as the OP stated. This means that no failure in the external shifting mechanism would cause FWD high.

This means the case will need to come out. Hopefully its just an issue with one of the shifting forks, but be prepared for a bench rebuild (or find an operational case for $100 and swap it in)
__________________
Building a Jeep is like playing golf, every now and then you get a good shot that makes you believe, hey I can do this!
sanmiam is offline   Reply With Quote Quick reply to this message
Unread 03-18-2013, 04:40 PM   #5
RamblingCJ
Registered User
1986 CJ7 
 
Join Date: Dec 2012
Location: Dallas Area, TX
Posts: 471
Correct me if I'm wrong, but isn't that one of the reasons for installing the twin sticks? The ability to shift the front into high and the rear in neutral, which would essentially be front wheel drive high.
RamblingCJ is offline   Reply With Quote Quick reply to this message
Unread 03-18-2013, 07:46 PM   #6
Pacfanweb
Go Wolfpack
 
Pacfanweb's Avatar
1981 CJ7 
 
Join Date: Jan 2005
Location: Wake Forest, NC
Posts: 2,551
Quote:
Originally Posted by RamblingCJ View Post
Correct me if I'm wrong, but isn't that one of the reasons for installing the twin sticks? The ability to shift the front into high and the rear in neutral, which would essentially be front wheel drive high.
I always thought the ability to have FWD Low was the reason. And the ability to pop the front out of Low into Neutral if you have a front locker and want to make a tight turn on the trail.
__________________
I asked a ref if he could give me a technical foul for thinking bad things about him. He said, of course not. I said, well, I think you stink. And he gave me a technical. You can't trust em. -
Jimmy V
Pacfanweb is offline   Reply With Quote Quick reply to this message
Unread 03-18-2013, 07:58 PM   #7
RamblingCJ
Registered User
1986 CJ7 
 
Join Date: Dec 2012
Location: Dallas Area, TX
Posts: 471
Quote:
Originally Posted by Pacfanweb
I always thought the ability to have FWD Low was the reason. And the ability to pop the front out of Low into Neutral if you have a front locker and want to make a tight turn on the trail.
There's numerous reasons to opt for twin sticks, as your's are good too. I'm just confused because earlier posts were claiming that FWD high wasn't a choice, but it would be with a twin stick. I could see the benefit of this if you hit a really bad patch of icy pavement going uphill. You could switch into FWD high and pull yourself up it. But as you mentioned, I'd see your scenarios happening more often.

Anyway, OP, I think if your linkage is bad, like BagusJeep mentioned, I could see this causing your issue. Keep us updated!
RamblingCJ is offline   Reply With Quote Quick reply to this message
Unread 03-18-2013, 11:11 PM   #8
kappa505
Registered User
1980 CJ5 
 
Join Date: Oct 2006
Location: Las Cruces, New Mexico
Posts: 459
Open it up and look inside but verify the pins are there on your way. The grinding makes me think internal problem..... Unless a linkage pin failed like bagus said and the t-case was shifting at a bad time causing the grinding.
__________________
"Nothing in the world can take the place of Persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. Persistence and determination alone are omnipotent. The slogan 'Press On' has solved and always will solve the problems of the human race." Supposedly President Coolidge
kappa505 is offline   Reply With Quote Quick reply to this message
Unread 03-19-2013, 12:14 AM   #9
RamblingCJ
Registered User
1986 CJ7 
 
Join Date: Dec 2012
Location: Dallas Area, TX
Posts: 471
Quote:
Originally Posted by kappa505
Open it up and look inside but verify the pins are there on your way. The grinding makes me think internal problem..... Unless a linkage pin failed like bagus said and the t-case was shifting at a bad time causing the grinding.
I agree. The grinding is definitely a concern. Verify the linkage is good, and if it is, then you're most likely looking at some bench work.
RamblingCJ is offline   Reply With Quote Quick reply to this message
Unread 03-19-2013, 01:03 AM   #10
BagusJeep
Web Wheeler
 
BagusJeep's Avatar
1981 CJ7 
 
Join Date: Jul 2009
Location: Bali, Indonesia
Posts: 4,512
Anything's possible in an old CJ, but the D300 is very strong so fingers crossed it is something simple.
__________________
BagusJeep lives in Bali, the Land of Temples.
With a Jeep every prayer counts.

1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1995 Cherokee 4.0 - CHEROKEE
BagusJeep is offline   Reply With Quote Quick reply to this message
Unread 03-19-2013, 06:09 AM   #11
sanmiam
Registered User
1983 CJ7 
 
Join Date: Oct 2005
Location: Philadelphia, PA
Posts: 254
RamblingCJ and Pacfanweb - The reason for a twin stick is two fold. #1 is (as Pacfanweb stated) the ability to easily disengage the front axle if you do not have a selectable locker and need a tight turn. The other reason is in order to do front digs which can get you out of a jam if you are in a bad situation (or sometimes just save you from having to make a 12 point turn).

Both of these situations are for use on the trials, in 4WD LOW situations. The detents on the shift rails of the dana 300 will not allow the case to shift into 2WD high - trust me, I have tried. Twin stick or single stick, you just cannot do it if everything is in working order. Even in the situation on having twin stick with both sticks in 4wd high and you attempt to pull the rear axle stick into neutral the front axle stick will come with it (basically bringing the t-case into neutral).

In conclusion - there is 100% chance that there is something going on inside the TC that should not be. It *may* be possible to get RWD high back by playing with the shift rails but if you were to successfully get RWD high back I would not attempt to cycle into 4WD high (or any other t-case configuration) else you will be right back where you started.
__________________
Building a Jeep is like playing golf, every now and then you get a good shot that makes you believe, hey I can do this!
sanmiam is offline   Reply With Quote Quick reply to this message
Unread 03-19-2013, 07:09 AM   #12
cj7ole
Registered User
1984 CJ7 
 
Join Date: Jul 2009
Location: Highland, Michigan
Posts: 393
Thanks guys. I am out of town with the Jeep (FL for 7 weeks using it as my daily driver) so 95% of my tools are in MI and the RV park would scream if I started tearing down my TC here even if I had the tools. Bottom line, I took it to a tranny shop, they took it apart and yes something was broken. I will find out more when I pick it up in few days. I am guessing it was a delayed result of either:

1. My 0-60 test when I blew the driveshaft U-joint straps at 53 MPH at 6 grand on the tach
2. The contamination of the TC oil with ATF due to a bad input shaft seal.
3. Low TC oil level due to some loose bolts on the bottom inspection plate from an earlier tranny rebuild and the shop (in MI) resealing the TC.
4. Hey, it is 27 years old and had never been taken apart.
__________________
'84 CJ7, '07 5.3 LMG Chevy, D300, 4L60e, 33's, 4.10, rear Detroit Locker, FG Tub, HOK Tangelo Pearl
Build: http://www.jeepforum.com/forum/f22/ole-jays-cj7-5-3-chevy-swap-1287392/
cj7ole is offline   Reply With Quote Quick reply to this message
Unread 03-19-2013, 09:33 AM   #13
RamblingCJ
Registered User
1986 CJ7 
 
Join Date: Dec 2012
Location: Dallas Area, TX
Posts: 471
Quote:
Originally Posted by sanmiam
RamblingCJ and Pacfanweb - The reason for a twin stick is two fold. #1 is (as Pacfanweb stated) the ability to easily disengage the front axle if you do not have a selectable locker and need a tight turn. The other reason is in order to do front digs which can get you out of a jam if you are in a bad situation (or sometimes just save you from having to make a 12 point turn).

Both of these situations are for use on the trials, in 4WD LOW situations. The detents on the shift rails of the dana 300 will not allow the case to shift into 2WD high - trust me, I have tried. Twin stick or single stick, you just cannot do it if everything is in working order. Even in the situation on having twin stick with both sticks in 4wd high and you attempt to pull the rear axle stick into neutral the front axle stick will come with it (basically bringing the t-case into neutral).

In conclusion - there is 100% chance that there is something going on inside the TC that should not be. It *may* be possible to get RWD high back by playing with the shift rails but if you were to successfully get RWD high back I would not attempt to cycle into 4WD high (or any other t-case configuration) else you will be right back where you started.
Thanks for clarifying that!
RamblingCJ is offline   Reply With Quote Quick reply to this message
Unread 03-19-2013, 09:38 AM   #14
RamblingCJ
Registered User
1986 CJ7 
 
Join Date: Dec 2012
Location: Dallas Area, TX
Posts: 471
Quote:
Originally Posted by cj7ole
Thanks guys. I am out of town with the Jeep (FL for 7 weeks using it as my daily driver) so 95% of my tools are in MI and the RV park would scream if I started tearing down my TC here even if I had the tools. Bottom line, I took it to a tranny shop, they took it apart and yes something was broken. I will find out more when I pick it up in few days. I am guessing it was a delayed result of either:

1. My 0-60 test when I blew the driveshaft U-joint straps at 53 MPH at 6 grand on the tach
2. The contamination of the TC oil with ATF due to a bad input shaft seal.
3. Low TC oil level due to some loose bolts on the bottom inspection plate from an earlier tranny rebuild and the shop (in MI) resealing the TC.
4. Hey, it is 27 years old and had never been taken apart.
Ouch! I've thrown one, but not at that speed. I bet that was pretty loud! I hope it didn't mess the bottom of the tub up too much!

Hope they get ya fixed up and road worthy quickly so you can enjoy it with the weather down there!
RamblingCJ is offline   Reply With Quote Quick reply to this message
Unread 03-20-2013, 01:12 PM   #15
cj7ole
Registered User
1984 CJ7 
 
Join Date: Jul 2009
Location: Highland, Michigan
Posts: 393
The blown DS beat up the fiberglass tub pretty bad along with my brand new SS Magnaflow muffler. Here is my saga: http://www.jeepforum.com/forum/f8/stupid-me-1432411/

Just picked it up from the tranny shop. A detent screw had worked itself loose and jammed up the shift mechanism. Good news was no big parts bill, bad news was $1100 in labor.
__________________
'84 CJ7, '07 5.3 LMG Chevy, D300, 4L60e, 33's, 4.10, rear Detroit Locker, FG Tub, HOK Tangelo Pearl
Build: http://www.jeepforum.com/forum/f22/ole-jays-cj7-5-3-chevy-swap-1287392/
cj7ole is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.