| Author | Message | ||
     david langley (Dplangley21) New Member Username: Dplangley21 Post Number: 8 Registered: 01-2004 |
just last week i had my front drive shaft rebuilt w/ 3 new u joints and also the velocity joint (center yolk) replaced, the truck has 70,000 and had a vibration in the front, needless to say now the vibration is really bad.. i also just replaced the rotoflex coupling, hoping that would help. i need to drive the truck back to my buddies shop and it is about 2.5 hours, and i really don't think it is a good idea to drive the truck that far the way it is. so i was thinking of pulling the shaft off? | ||
| Sergei Rodionov (Uzbad) Senior Member Username: Uzbad Post Number: 341 Registered: 08-2003 |
You cant do it unless you got CDL. Open shaft will steal all torque from rear. | ||
| Justin V. Nevitt (What_rd) New Member Username: What_rd Post Number: 12 Registered: 02-2004 |
Seeing how you have a 2000 model truck, pull the shaft and lock the CDL. It will work will no problem. You will loose ABS, but that's no big deal. Peace. | ||
| david langley (Dplangley21) New Member Username: Dplangley21 Post Number: 9 Registered: 01-2004 |
what is the best way to lock the cdl? | ||
| Jack Leitch (Liveattheedge) Member Username: Liveattheedge Post Number: 195 Registered: 12-2003 |
justin, don't 2000 DII's have ETC not CDL? The two i've had you can't lock the diffs? Cheers Jack | ||
| Curt Perlman (Cnote) Member Username: Cnote Post Number: 51 Registered: 01-2004 |
you can lock it manually. Unfortunatly, I don't know how. | ||
| Jack Leitch (Liveattheedge) Member Username: Liveattheedge Post Number: 196 Registered: 12-2003 |
hmmm, very interesting. anyone know how? i'd love to know Cheers Jack | ||
| Curt Perlman (Cnote) Member Username: Cnote Post Number: 52 Registered: 01-2004 |
I hate to sound like a complete moron, but I had my dealer do it for me to see if I liked it on the trails before I installed a solenoid. | ||
| Jack Leitch (Liveattheedge) Member Username: Liveattheedge Post Number: 197 Registered: 12-2003 |
u have to install something to be able to switch it manualy? Something i can do or do you need the autologic? Cheers Jack | ||
| Bill Mallin (Billmallin) Senior Member Username: Billmallin Post Number: 464 Registered: 09-2003 |
There's a stub on top of the transfer case. Reach under there with a 10mm (I think) wrench and twist it. It does not turn very far. There's a picture of it in this article to help you locate it: http://discoweb.org/cdlsolenoid/index.htm Bascially, here's the picture of the stud: http://discoweb.org/cdlsolenoid/solenoid02.jpg You see there are three bolts holding on the plate with a threaded stud sticking up in the middle? At the bottom of that threaded stud is a flat spot. Actually there are two flat spots--one on each side. Put the wrench on these flat spots and turn it. CDL engaged. | ||
| Dean Brown (Deanbrown3d) Senior Member Username: Deanbrown3d Post Number: 1544 Registered: 02-2002 |
CDL stub on D2 transfer case up till mid 2001. Looking from above, turn the bolt approx. 20 degrees clockwise to lock it, anticlockwise to unlock. | ||
| david langley (Dplangley21) New Member Username: Dplangley21 Post Number: 10 Registered: 01-2004 |
so what exactly does locking this cdl do? what does cdl stand for? thank you very much for all the info!! | ||
| Big Ed (Sandman) Member Username: Sandman Post Number: 85 Registered: 02-2004 |
David... Center Diff Lock = CDL Briefly - Locks the Front and Rear Diffs to allow one of the axels to turn when the other is spinning. SandMan | ||
| Michael Noe (Noee) Senior Member Username: Noee Post Number: 887 Registered: 03-2002 |
Huh? Not quite. CDL does nothing directly to the front and rear diffs. It locks the center diff so that power transfer to both front and rear is 50/50. Think of it as a longitudinal spool from front to rear when locked. When locked, it will cause wind up if you don't get some slippage, so do not run with CDL locked on hard surface for very long, if at all. | ||
| Sergei Rodionov (Uzbad) Senior Member Username: Uzbad Post Number: 343 Registered: 08-2003 |
Michael - "on hard surface". Make it "non slippery surface". Slickrock of Moab and talus/rocks of Colorado are good examples of hard surfaces where you still have to lock  David - if you never looked at the theory behind 4wd stuff - its time to do that, it will make you understand your truck better, specially if you planning to take it off road ever. CDL - central locking differential. In same way as differentials on your axles it designed to split given power between two consumers (front and rear shaft for CDL, left and right half-shaft for axles). If differential is open (unlocked) it will always give up more power to whatever spins faster. Hence if your left/right wheel spins faster - other one will not get any power. Same for shafts - if either one can spin freely - it will steal power from other one. Locking split power evenly between consumers (wheels or shaft). However if you driving on non-slippery surface and you got your differential(s) locked - all parts will be trying to move at same speed, thus putting greater strain on the drivetrain, eventually breaking it. Hence the idea of not using locked 4wd mode on dry pavement. Slippery surfaces are ok So when you put shaft back, do not drive it back home from shop, till you unlock CDL. | ||
| Mud Man (Clarance) Member Username: Clarance Post Number: 98 Registered: 02-2002 |
That will work fine but i ended up destroying my rear R&P. but i did this for about 7 months. | ||
| Matt Anderson (Disco01) Senior Member Username: Disco01 Post Number: 340 Registered: 10-2003 |
I am curious. The RR has a vicious coupling, correct? I would assume this is like a limited slip for the center diff. How does it work? Is it as effective as a lock? | ||
| Reid Walkenhorst (Runningmule) New Member Username: Runningmule Post Number: 36 Registered: 05-2003 |
On the DII 2000 model, you should have a center diff. lock light illuminate on your dash cluster. Depending upon when you engage with engine on or off, you will also have etc and abs illuminate. Setting up for CDL engagement whether by means of solonoid or manual means is a pretty common upgrade. Do it and excercise it from time to time. | ||
| Justin V. Nevitt (What_rd) New Member Username: What_rd Post Number: 13 Registered: 02-2004 |
Jack and David, Sorry about taking so long to get back to you. The others have the right idea and have explained the CDL pretty well. Bill (Great Basin Rovers) offers a pretty slick kit that allows you to lock and unlock the CDL from inside the cab with only a switch (mentioned above). The 2000 model will have both ETC and the CDL. The CDL on the D2 is not advertised by LRNA because they had problems with "soccer moms" driving around on pavement with it locked in and thus unknowingly damaging the drivetrains. If one were to turn the ignition on while the CDL is in the locked position, the truck will automatically deactivate the ETC function. There is a way of getting around this by installing a momentary button in the proper circuit and holding it down while starting the vehicle. Or simply unlock it before you fire up. The ability to lock the CDL is a must have for anyone wheel'n their truck. Peace. | ||
| Matt Anderson (Disco01) Senior Member Username: Disco01 Post Number: 343 Registered: 10-2003 |
LR discontinued the CDL because they thought it would not be necessary with the ETC. It was optional in some markets. The Aussies and us raised a stink about it thus it is available again. | ||
| Justin V. Nevitt (What_rd) New Member Username: What_rd Post Number: 16 Registered: 02-2004 |
Matt Anderson, The vicious coupling in the BW cases, for all practical reasons, operates the same as a 230 with the CDL unlocked. I personally run a wore out, thus locked up, vicious coupling in my '90 RRC with modified front drive flanges. This set up allows me to run 2wd 'til I hit the trial. At that point, when I change to 4wd, the t-case performs like a "locked" CDL. This is also a temp. fix until I put together a 230 with a part time kit. Peace. | ||
| Captain Spalding (Captainspalding) New Member Username: Captainspalding Post Number: 1 Registered: 03-2004 |
David, be very cautious. I'm a new Disco owner and Discoweb member, but I have a G-wagen also and am no stranger to off roading. On a G-Wagen, there is an oil pump in the transfer case which is driven by the front drive shaft. If you pull the shaft and drive, the transfer case will not receive proper lubrication, and will grenade. I have no idea whether the Disco has a similar setup or not. My point is that there are sometimes unforseen circumstances when messing with another man's engineering. You should seek the advice of a LR mechanic before making a 2.5 hour drive with no front driveshaft intalled. Good luck. |
