Forum:
ok i have a 1986 fourtrack f75 2.8 td with manual hubs and all leaf suspension and i was wondering exactly how much damage i would do if i drove it in 4H permenantly?
im a bit new to the whole 2H/4H malarkey as ive driven Jeeps for a good while and my other car is a grand cherokee which have 4wd all the time, just switching between 4H and 4L when things get a little sticky.
having driven my fourtrak for a while in both i love it to bits, but i just feel more in control when i drive it in 4H as the back end can be a little skittish in the wet due to the leaf springs.
i know the transfer box wear will come up as an issue, but just how much damage will i do?
all the best
vinyljunkie
JACK BAUER WOULDNT STAND FOR THIS Sh**
Don't do it mate, as far as
Don't do it mate, as far as I'm aware the Fourtraks don't have a limited slip differential, the result would be that the axle would twist and sieze because it can't free itself.
As the vehicle turns a corner, one wheel goes faster than the other, when you're in 4WD mode the front diff is locked to the rear diff with no slip, this means when you take a corner the average speed of your front wheels is different to the rear which would twist the axle between the front and rear. This is commonly known as "wind-up" (like a wound up spring).
The reason this works fine for offroading however is as a rule of thumb the ground is a lot softer and allows the wheels to slip a little to unwind any wind-up.
In short, keep 4WD for surfaces with low grip / areas of low traction. Typical example would be mud / snow / dirt / maybe even heavy rain if the roads are slippery enough
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Jason "Foxdie" Gaunt
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Jason "Foxdie" Gaunt
4wd
I agree you shouldn't ush 4H all the time. You will damamge the drive train with wind up.
Try looking at your tyres if you are finding that conering is a bit vague in the wet. Is the tread too hard. Try M&S with a sorter compound that will imptove the road holding in the wet.
A good example of this were the old Land rovers that mad a lot of tyre noise on roads. They were superb on mud and would go anywhere. On the road they wer like ice skates in the rais because the All terrain heavy treads were so hard that they just slid in the rain. A lot of people go for the chunky all terrain tyre thinking that they look great, which they do, and will do every thing. As the rubber hardens with age they may look great but try stopping quickly in the rain and its a different may be a different matter.
Hope this helps
OLDMINIMAN
M J Young
Tell me about it, my front
Tell me about it, my front tyres (ATs) have about 8mm if not more tread on them, great for dry weather and quite good for offroading... try cornering at anything more than 5mph in them and they slide..
I'm finding I'm having to knock it into 4H to take corners when there's traffic waiting behind me then back out again when I'm on the straight just to get around in a reasonable time
very bad practice though I admit.
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Jason "Foxdie" Gaunt
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Jason "Foxdie" Gaunt
right excellent advice, my
right excellent advice, my jeeps have independent limited slip diffs in the form of quadratrack so thats why i dont get the wind up. will keep the trackies 4wd for the mud and snow from now on.
peace
gareth