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post #1 of 12 Old 01-07-2014, 08:51 PM Thread Starter
Noe53
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Tow bar

Guys,

Any recomendations for a tow bar. Basically l'd like to hitch my jeep to my truck

What would be the trick to do it. Do I merely put the tranny in neutral and unlock the steering?
Does the transfer case needs to be in neutral as well?

The jeep has a manual transmission with a 4.0L
Thx
F

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post #2 of 12 Old 01-07-2014, 08:55 PM
Mean Max
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For flat towing, the T-case must be in neutral, but the transmission must be in Park (automatic) or in gear (manual) during towing.

The T-case oil pump is driven from the output shaft of the T-case, so flat towing will turn the driveshafts and the oil pump providing T-case lubrication. So that's all good news.

However, not so for the tranny. Even with the T-case in neutral, the viscous nature of the lube in the T-case will spin the T-case input shaft, which will in turn spin the output shaft of the tranny if it is left in neutral. This is where the trouble starts. The transmission will not lubricate the bearings if the tranny input shaft is not turning, so the bearings will starve for lube. Placing the transmission in gear (any gear) will prevent all of this from happening.

Hope this helps give you a better understanding.




I dug out my '91 Owner's Manual and quoted the following verbatim.

Page 125 of the 1991 Jeep Wrangler Owner's Manual states;

1. Shift transfer case to 2H and check that the 4WD light goes out.

2. Drive vehicle 10 ft. (3 m) rearward and then 10 ft. (3 m) forward to make sure the axle is disengaged.

3. Shift transmission to Neutral.

4. Turn off engine with the ignition key in the unlocked OFF position.
(NOT in the "LOCK" position, the steering wheel must be able to turn while flat towing!)

5. Shift transfer case lever from 2H to N (Neutral) position.

6. Shift manual transmission into gear or automatic transmission into P (Park).

WARNING: With the transfer case in N (Neutral) position, the vehicle could roll unexpectedly. The parking brake should always be applied before the tow bar is attached.

7. Attach vehicle to the tow vehicle with tow bar.


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post #3 of 12 Old 01-07-2014, 09:00 PM
plym49
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I bought the generic cheap universal tow bar from Amazon. Permanently mounted the brackets to my front bumper. Have towed my YJ all over the country with my larger truck.
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post #4 of 12 Old 01-07-2014, 09:45 PM Thread Starter
Noe53
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Thanks for the feedback. This is very valuable info
Cheers,
F
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post #5 of 12 Old 01-08-2014, 10:24 AM
bpounds
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I use the Harbor Freight tow bar. You can get it for around $75. It works just fine and is easy to mount to a stock bumper. I bungee cord it up when I'm wheeling and it rides great and does not bounce around.



I used some tennis balls to cushion it against the grille and to keep it from contacting the front lip of the hood.


For lights I installed diodes in the turn signals and running lights circuits. I cut into the wiring harness on the drivers side inside the tub, just behind the drivers seat. Just got the loose diodes from Radio Shack and soldered them in. I can just plug into my truck when towing, and all the truck lights and jeep lights are isolated.

Bill
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post #6 of 12 Old 01-08-2014, 10:50 AM
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Quote:
Originally Posted by bpounds View Post
I use the Harbor Freight tow bar. You can get it for around $75. It works just fine and is easy to mount to a stock bumper. I bungee cord it up when I'm wheeling and it rides great and does not bounce around.



I used some tennis balls to cushion it against the grille and to keep it from contacting the front lip of the hood.


For lights I installed diodes in the turn signals and running lights circuits. I cut into the wiring harness on the drivers side inside the tub, just behind the drivers seat. Just got the loose diodes from Radio Shack and soldered them in. I can just plug into my truck when towing, and all the truck lights and jeep lights are isolated.
I bought the kit with the diodes. Love it!! So mch better then stringing up the magnetic tow lights

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post #7 of 12 Old 01-08-2014, 02:26 PM
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Quote:
Originally Posted by bpounds View Post
I use the Harbor Freight tow bar. You can get it for around $75. It works just fine and is easy to mount to a stock bumper. I bungee cord it up when I'm wheeling and it rides great and does not bounce around.



I used some tennis balls to cushion it against the grille and to keep it from contacting the front lip of the hood.


For lights I installed diodes in the turn signals and running lights circuits. I cut into the wiring harness on the drivers side inside the tub, just behind the drivers seat. Just got the loose diodes from Radio Shack and soldered them in. I can just plug into my truck when towing, and all the truck lights and jeep lights are isolated.
That's the HF Stinger bumper!

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post #8 of 12 Old 01-08-2014, 02:32 PM
Mobile_Homie
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That's the HF Old Man Stinger bumper!
Fixed it for ya!

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post #9 of 12 Old 01-08-2014, 03:03 PM
Chrisnvegas
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The towing instructions, diodes, all good.
But in typical jeep fashion, I went the cheap route and I didn't need to cut the stock harness.
I ran a plug and 3 wires to the back. Hid the 4 way flat plug in front.
The inside of stock Jeep taillights are pretty big and empty so I added one 1157 socket and bulb in each taillight separate from the Jeep lighting system.
It grounds itself nicely through the hitch. You may have to run your own ground if you live in the rust belt.

What happens in my Jeep, stays in my Jeep
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post #10 of 12 Old 01-08-2014, 04:12 PM
jbolty
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Quote:
Originally Posted by Chrisnvegas View Post
The towing instructions, diodes, all good.
But in typical jeep fashion, I went the cheap route and I didn't need to cut the stock harness.
I ran a plug and 3 wires to the back. Hid the 4 way flat plug in front.
The inside of stock Jeep taillights are pretty big and empty so I added one 1157 socket and bulb in each taillight separate from the Jeep lighting system.
It grounds itself nicely through the hitch. You may have to run your own ground if you live in the rust belt.
exactly what I did. Only a 1 beer job.


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post #11 of 12 Old 01-08-2014, 05:38 PM
Chrisnvegas
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Originally Posted by jbolty View Post
exactly what I did. Only a 1 beer job.

That's the way to do it. No mods to the original harness.

What happens in my Jeep, stays in my Jeep
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post #12 of 12 Old 01-08-2014, 07:04 PM
plym49
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The HF tow bar pictured above is the same cheapo that Amazon and everyone else sells. Just shop for the best price. However, I tossed the wimpy safety chains mine came with and replaced them with two very strong chains. I use one from the tow bar to the towing vehicle, and the other from the Jeep fram to the frame of the towing vehicle.

Also, consider replacing the slim shady bolts (at all the adjustment points) with real hardware, washers and LocTite.

I mounted my brackets atop the bumper because my truck sits high so the receiver is up high.

Lastly, I used good anti-corrosive grade 8 fine thread bolts from McMaster-Carr with matching flat washers and locking nuts to attach the brackets to the bumper. (For two of the bolts, the other two are the stock bumper bolts but longer versions.)

That tow bar is fine but the hardware is cheap and can mess you up, so save on the tow bar and spend a few $$ on decent hardware and chains.
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