Constant 4 wheel or lock able Hubs

i have a 80 series land cruiser which was full time 4 wheel drive just converted the front to lockable hubs shoulds save on fule





I am doing a fuel test now to see how much fuel i will save in this new project the third pic is the parts they took out of the transfer case looks like a small diff center interesting

so far looks good drive well its funny now it being driven from back end of the 4x4 not from the front end feels like a new 4x4

Your son should not only notice an improvement in fuel economy but his front diff won't wear out so quickly because it won't be turning all the time.

i think its saving fuel but will not no until i do the figers i don't have a turbo but i have put a two and a half inch system with extractors on it which has made the diesel run much better so i think with the floating axles and the two and a half inch system i am bond to save flue i will let you know how fuel test turns out

I did own a defender stuck to the road real good brakes good you could drive along at 80 kms hour and turn up the gutter it would soke up the bumps great.
Allot of people don’t understand when they are told constant four wheel drive all the late models have a differential in the gear box what happens it will spread the load
Evenly over all four wheels until you really get stuck.
When one wheel comes of the ground the gear box will direct the power to the wheel with the least amount of pressure just like a normal diff when you do a burn out around a corner.
That is when you pull the gear stick on that locks the central gear box.
I don’t think my land rover defender would use any less fuel if it was driven only by the back wheels???

I hope I explained it right a engineer told me something like that

1fst fuel test mind you all i use the air con the hole trip
19.23 mpg 14.67 Liter 100km


next test will be better no aircon

hmm lost more hehehe i have a set of shelves in the 4x4 full of recovery gear and so on and having the roof rack also uses up fuel

ok second test 500 km 79.94 Litres mpg 19.40 L/100 14.53

ok i can say it been a while since i put the free wheeling hubs on and i would have to say its saving me heaps Cheers Manny

G'day Manny make sure you lock the hubs before you enter the mud holes. Other wise you goto get out and lock them while in the mud. . I have been there a few times but I sent the misses out into the mud. You should see the look on her face not pretty . This is a true story.
Our new 4x4 has the auto locking hubs so she doesn't give me that dirty look any more.

Cheers.

Mike.

Mike54 wrote: You should see the look on her face not pretty

On a normal day or only when sent to the mud

I upgraded my stock manual hubs to a shiny new set, best thing ever saves ur whole front drive train from turning at all saving CV's and all sorts from extra and unnecessary pressures. With those mags on ur landcruiser they look ugly as all hell but well worth it.
Just remember if your not locking the hubs much off road just lock them in and g/box to 4x4 every few weeks and drive a few circles just to circulate everything.

yes mike thanks i will and good point Jerry i will put the hubs in and run them just to keep things going cheers Manny

I will say not having it in constant 4x4 has save me cash

Good move Maddog , i have heard from others you went the same route and got an extra 80 K's outta a tank so should pay for it self in no time. cheers Mick