Flat towing / tow bar /CJ-7 with Dana 300 Transfer case - JeepForum.com

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post #1 of 27 Old 08-31-2013, 11:59 AM Thread Starter
GlennLever
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Flat towing / tow bar /CJ-7 with Dana 300 Transfer case

Can a CJ-7 be flat towed, towed with a tow bar, that has a Dana 300 Transfer case?

Will the bearings in the case get oiled, if the case is in neutral?

Do the drive shafts have to be disconnected?


Glenn R. Lever
Rochester, New York 14617-2012
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post #2 of 27 Old 08-31-2013, 12:15 PM
CJ7-Tim
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From the 1980 CJ-7 Factory Service Manual:

Recreational (Flat) Towing

Manual Transmission - D300

1) Ignition to OFF/UNLOCK position to unlock steering wheel
2) Shift Transmission into gear and Transfer Case into Neutral
3) Turn 4x4 hubs to LOCK for axle lubrication.


Most tow bars manufacturers recommend you DO NOT back up, so look for pull-thru parking spots.

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post #3 of 27 Old 08-31-2013, 12:42 PM Thread Starter
GlennLever
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Quote:
Originally Posted by CJ7-Tim View Post
From the 1980 CJ-7 Factory Service Manual:

Recreational (Flat) Towing

Manual Transmission - D300

1) Ignition to OFF/UNLOCK position to unlock steering wheel
2) Shift Transmission into gear and Transfer Case into Neutral
3) Turn 4x4 hubs to LOCK for axle lubrication.


Most tow bars manufacturers recommend you DO NOT back up, so look for pull-thru parking spots.

Never thought to look there, I have the manual for the 84, what section did you find that in?

Glenn R. Lever
Rochester, New York 14617-2012
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My restoration thread here on the Jeep forum
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post #4 of 27 Old 08-31-2013, 12:52 PM
gmakra
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It depends on what transmission you have in the Jeep. The rear bearing on the output shaft of the trans may not get lube circulating if its in netural. The 300 will be fine no matter what trans you have.
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post #5 of 27 Old 08-31-2013, 01:05 PM Thread Starter
GlennLever
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Quote:
Originally Posted by gmakra View Post
It depends on what transmission you have in the Jeep. The rear bearing on the output shaft of the trans may not get lube circulating if its in netural. The 300 will be fine no matter what trans you have.

I have a T176 transmission and a Dana 300 Transfer case

Glenn R. Lever
Rochester, New York 14617-2012
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post #6 of 27 Old 08-31-2013, 01:24 PM
LumpyGrits
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Manual tranny....
Been flat-towing mine for 28+ yrs, all over the USA.
I disconnect the rear DS at the diff. pinion and hang it(tape the u-joint caps)up, under the body. T'case in 2WD and tranny in "N".
Don't forget to 'unlock' the steering wheel.
This takes less that 5 minute to do all the above, and will save an expensive 4 to 1 T'case.
I use a Smittybuilt tow bar(no longer made)mounted to a reinforced OEM stock bumper.
Tim-My OM('85)sez somedangthing about stopping every 125 miles or so, and start the engine to circulate the gear oil. You lock the hubs to 'lube' the t'case. NOT the axle.
LG

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post #7 of 27 Old 08-31-2013, 02:52 PM Thread Starter
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I think what I will do is get a 16 foot enclosed trailer and tow it behind the RV. Solves the problem of getting under it to disconnect the drive shaft, not being able to back up because of the double pivot, junk getting picked up by the RV and thrown at the Jeep, and winter storage of the Jeep.

RV with the dragster trailer behind it.




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post #8 of 27 Old 08-31-2013, 03:18 PM
CJ7-Tim
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That's what the FSM says. Engaging the 4x4 hubs to turn the T-Case internals for lubrication is probably a more correct explanation. The procedure does vary slightly based on the automatic or manual transmission.

If the D300 Transfer Case is in Neutral, the Transmission will have no movement.

I prefer to disconnect the rear drive shaft from the diff, put the T-Case in Neutral, and leave the hubs in 2wd, and then nothing is moving.

.

A recent Gallup public opinion poll shows the NRA, at 58% approval, has a higher approval rating than either Hillary Clinton or Barack Obama.

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post #9 of 27 Old 09-11-2013, 12:35 PM
Jon In Tucson
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Quote:
Originally Posted by CJ7-Tim View Post
From the 1980 CJ-7 Factory Service Manual:

Recreational (Flat) Towing

Manual Transmission - D300

1) Ignition to OFF/UNLOCK position to unlock steering wheel
2) Shift Transmission into gear and Transfer Case into Neutral
3) Turn 4x4 hubs to LOCK for axle lubrication.


Most tow bars manufacturers recommend you DO NOT back up, so look for pull-thru parking spots.
Thanks Tim for the info. I called a local 4X4 shop and that is essentially the same thing they told me. I just finished a 600 mile round trip for a pronghorn hunt and flat towed the CJ-5 behind the van. God bless.
Jon In Tucson

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post #10 of 27 Old 09-11-2013, 01:25 PM
CSP
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Having seen a D300 that has caught fire from being flat towed I would throw what the factory service manual says out the window.

The output bearing on the D300 DOES NOT get any lubrication when being towed, regardless of what position the transfer case and/or transmission is in.

Here's another one that had a fire:
http://www.pirate4x4.com/forum/jeep-...ana-300-a.html
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post #11 of 27 Old 09-11-2013, 01:31 PM
LumpyGrits
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Agree 110%. That's why I disco the rear DS at the diff
Also, the OM sez somedangthing about every 125 miles or so to stop and put tranny in gear and start the engine, or some such nonsense.
5 minutes of easy work pull'n the DS, to save my 4:1 t'case is a no brainer for me.
LG

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post #12 of 27 Old 09-11-2013, 01:43 PM
Matt1981CJ7
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I've flat-towed my CJ behind my RV for over 40K miles.

I've always put the t-case in neutral, trans in 4th gear, hubs and steering unlocked.

Right or wrong, I've never had a problem.

Matt
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post #13 of 27 Old 09-11-2013, 01:53 PM
LumpyGrits
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Good to hear you have had such good luck.
Just after see'n many 'smoked' when I know for fact they were towed as you do. I won't take the chance.
Just towed mine to Montana this last June. Sure nice to have along.
LG

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post #14 of 27 Old 09-11-2013, 02:04 PM
Matt1981CJ7
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After reading the thread that CSP posted, I may reconsider my towing practices and disconnect the rear driveshaft.

I guess you wouldn't rack up towing miles on the odometer that way, either, hmmm?

Matt
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post #15 of 27 Old 09-11-2013, 03:29 PM
seabass1858
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This was helpful because I will be flat towing my cj7 behind my camper to az from ga after its built. Thats 1800 miles.
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