F250HD E4OD towing question

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Jan 16, 2016 | 01:43 PM

#16

bebyb

Thread Starter

Junior User

Joined: Jun 2012

Posts: 82

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Quote:

Originally Posted by Lead Head

Fluid will not get cooked towing, as there are no clutches being engaged. The damage would come from bearings and the rear planet (I think, not too familiar with the E4OD power flow) spinning without being lubricated.

How would you tell? Is there a certain sound or something?

Jan 16, 2016 | 02:55 PM

#17

Diesel_Brad

Fleet Owner

Joined: May 2009

Posts: 21,437

Likes: 76

From: Gilbert, PA

Quote:

Originally Posted by Bad Bad Leroy Brown

So, a 2wd ZF5 needs the shaft disconnected? I am under the impression a 4wd ZF5 truck can just have the TC put in neutral to safely tow.

Thanks!

yes, the fluid is splashed around by the input shaft. if it is not spinning, then nothing is getting lubercated

as for 4wds, I dod not know if the oil pump in the t-case is connected to the output shaft or not

Jan 16, 2016 | 05:16 PM

#18

Nothing Special

Lead Driver

Joined: Feb 2013

Posts: 5,006

Likes: 72

From: Roseville, MN

Quote:

Originally Posted by Bad Bad Leroy Brown

So, a 2wd ZF5 needs the shaft disconnected? I am under the impression a 4wd ZF5 truck can just have the TC put in neutral to safely tow.

Thanks!

That's what they say. For shorter tows I'd feel OK about that, but for long, higher speed towing I'd always pull the rear driveshaft. I met someone fourwheeling in Colorado once who was driving a rental Jeep. He had flat-towed his built Jeep up from Texas and lunched his transfer case. I know it was a completely different transfer case, and I'm comparing apples and oranges. But as far as I'm concerned it's just cheap insurance.