Diff Wind Up

if you can not get into the dirt at all and it has manual locking hubs you can at leasty lock these in without putting it into 4wd and drive on the black stuff without doing any harm to your 4wd. This will oil up your front hubs. The only thing this will cause is a very slight increase in fuel.More drive'n less talk'n

Come on Mr Kim - surely you can work out that some people buy a 4wd for reasons other than going off road! Try towing a boat/caravan/horse float/heavy trailer or maybe the elevated position to name just a few!!

Kim,

I buy a brand new 4wd every 2 years and have only been off road
twice for memory.

I utilise my fourbie for towing my boat.

Cheers

To answer some of the questions the vehicle is a 2003 Hilux SR5 Dual Cab V6 petrol automatic. The vehicle is fitted with a button on the transfer lever which is depressed to engage 4wd and the lever is constantly in H4 and can be depressed up to 100km per hr. Toyota call it ADD or something. Didnt know it was a crime to buy a 4wd then not get it in the dirt for a little while, but to satisfy this question I tow a reasonable sized boat (5mt Seafarer Vamp Approx weight 1000 plus kg) and also have just purchased an off road camper to take on an extended tour of the country in 7 months after I finish the renovations on my house which I will then sell and move to Northern NSW to my other property where I will be in the sand up to Fraser to surf, fish etc. Hope that answers the question. If its not diff wind whatever it was called I know that it can damage the vehicle thats why Im asking. I am looking at taking a 4wd course so until I can get there I thought I would ask. Thank you to those people who have posted a response. Happy Days Walrus

Hey willem I'm thinking it is not a constant 4x4, because well if i need to go on i'm not taking any more advice from you. LOLMore drive'n less talk'n

You speaka da Inglish??Cheers, Willem
Never a dull moment

Hey willem sorry if it came across as if i was being a prick, it was not intended. As i said to Paul i nearly asked the same Q. myself.More drive'n less talk'n

Thats OK Kim, I was bering churlish as well. Wasn't feeling too hot last night and should have desisted in joining in. Nevertheless.............

I remember now that with the old vehicles(pre 1980)which were not fitted with free wheeling hubs when they were manufactured, there was talk of diff wind up although I have never seen the results of such an event happening. Diff wind up could really only happen if the vehicle was driven in 4x4 on a sealed surface i.e. bitumen. In 2x4 the transfer gears, front shaft and diff would run all the time which would then be the same with the rear wheels. I have never heard of diff wind up on the rear wheels. Maybe someonelse on the forum can enlighten us.

I mentioned Constant 4x4 because the only manufacturer to get it right from the start was Leyland, with the Range Rover. Toyotas have not had a happy ride with constant 4x4 since they introduced it in the 90's. I do not know about other makes. Automatic hubs were a disaster for heavy duty offroad work.

My old truck gets gearbox wind up if I am in low range for a while. This necessitates the truck being reversed for say 10 to 20 metres before the gearlever will disengage from 4x4 back into 2x4. It was the same with my Toyota and really bad with my F100.
Cheers, Willem
Never a dull moment

ease up i very nearly asked the same thing my self, and there was no "prick tendencies" intented. For the record I'm new to 4wding and cant learn things quick enough. And I learn heaps from in here. Sorry if I came across as a prickMore drive'n less talk'n

"If your vehicle is a constant 4wd then there is not this prob as the front axle is always working."

How could it be a constant 4wd, when the manual states that it should be put into 4wd once a month for 20K???

Surely if it is a constant 4wd - then there is no way of taking it out of 4wd!

Tuco69
What if he is drivng a pajero, a cherokee or an iO.
These 4WD's have a choice of 2WD, 4WD full time, 4WD part time and 4WD Low

Roger
I thought the idea of doing the 20 km's was to rotate the crown wheel which in my line of thinking means just engaging 4WD for a few rotations of the front wheels to get the crown wheel lubricated (20 KM's not necessary but hey - it's not far) .
I'm no expert and will gladly stand corrected if this is not so (please advise). Locking the hubs will certainly lubricate other areas though.

Just when I thought I understood !Next Trek - Callawa Rd

Hi All,
First, sometimes people change the hubs on auto free wheel hubs to manual therefore as said lock them up and give them a run. On Part time 4wd when you lock the hubs up, this then turns both front axles and diff plus the gear in the transfer case thus ensuring all conponents get an oil bath. This also saturates the oil seals helping to ensure that they remain sealed not drying out, there have been cases where the seals suffer damage from the pounding they cop when the shafts are in one position only. There is a name for this but it eludes me at the moment. I have had various 4wd vehicles over the last decade or so and have always given them a run with the hubs locked just to ensure the aforementioned and never had trouble, however they were all part time 4wd vehicles. In fact every time I travel on a gravel road I usually engage 4wd to give every thing a run. After all you pay for it all so why not use it.
RegardsDodg

Don't want to sound like a prick Martyn but in my old MQ this never caused a problem. Had the hubs locked and took it in and out of 4wd quite often on the beach etc. Never any damage to the hubs or axles. Maybe it is different in newer fourbies. I really am not being a prick but from the looks of this post it might be a way to get away with it from now on. All you need to say is "not being a prick" Hehe.

Just kiding

Charlie

Charlie, what Martyn said is correct. Lock the hubs but DON'T engage 4x4. as locked 4x4 on bitumen is a no no.(Walrus' initial post said they do NOT go offroad.)

Charlie also indicated that engaging 4x4 with the hubs unlocked was not a good practice.