Re: JPOR: Re: tcase & flat towing

[jeff reynolds <jefe4x4@xxxxxxxxxxxxx>]

list,
I haven't posted for a long time. Two full time jobs have made my 
online time go away.
All you're really worried about flat towing with the D300 is the rear 
output bearing which will spin if the rear driveshaft is still 
connected. The rub is with the usual D300 hangdown the bearing is oil 
starved (since the gears in the oil are not turning and throwing oil 
up to the rear output bearing) and will burn up after several hours 
of freeway towing. Since Loren has clocked his D300, depending on how 
far, it may be that the bearing will get oil. If his case is on a 
flat plane, it should be O.K. It might be that for the tow he could 
overfill the t.case, enough to get the oil to the bearing. For short 
periods, I just tow it. For more than  say, 1/2 an hour, I always 
disconnect the rear driveshaft at the pig, and wire it up to the 
frame. I and some of my Jeeping buddies have left the engine idling 
in gear to the t.case for an hour or two during tows when it was 
inconvienient to disconnect the driveshaft.
regards, as always, jefe

>****************Please Remember to snip your replies***************
>Conventional wisdome from the list and magazine articles say that 
>unless you've
>put the little paddles inside your D300, or unless you have rear locking hubs,
>you will need to remove your rear driveshaft.
>
>Personally, I would think that if the t18 can take it, I don't know why you
>couldn't just put the t18 in neutral and leave the D300 in 2hi.  If the input
>shaft on the tcase is spinning, the D300 should be ok (how is this 
>any different
>than when you are driving?).  Any t18 experts will have to weigh in on the
>wisdom of doing this.
>
>Brett
>
>"Squires, Loren" wrote:
>
>  > Guys,
>  >
>  > I've got a question for the collective wisdom of this group. 
>I've got a cj5
>  > with a t18 tranny and d300 tcase which has been clocked, and I'm heading to
>  > Moab next week and planning on flat towing.  Any suggestions on how to set
>  > the tranny and tcase for safe towing?
>  >
>  > Loren
>
>--
>Brett Davis
>
>
>*******************************************************************
>      Link to Archive, Mission Statement, Rules, Subscribe and
>            Unsubscribe instructions  are available at:
>              http://www.pclink.com/jnutter/JPOR.htm

jefe@trailcraft.com http://www.4x4wire.com staff writer
jefe4x4@earthlink.net http://homepage.mac.com/jefe/
'82 CJ-8, SOA, 4.4L, H.O., MPI, NP435, D300/4:1, D44, AMC20, ARB's, 
110:1, SO. CAL.

        +=======+
        |    	   jefe  |
        [========]
      ___/O||||||O\___
      ##   o[$$]o   ##
      ##]=O====[##
      ##                 ##