Hey
Posted a similar question in the Nissan section but i want more input.
What are other peoples thoughts on running a ratio of 4.375 in the rear and 4.300 in the front?
I thought it may cause abit of binding and something will end up snapping.
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Diff Ratios
Moderators: toaddog, TWISTY, V8Patrol, Moderators
Diff Ratios
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Xcab Lux on 37 Treps
Xcab Lux on 37 Treps
It is ok to run SLIGHTLY different ratios - altho 0.075 is probably a bit much.
That said MOST of the time you would be using 4x4 is going to be on loose surfaces, and even if there was a bit of windup - I doubt it would kill you t/case unless you tried it on road.....
That said MOST of the time you would be using 4x4 is going to be on loose surfaces, and even if there was a bit of windup - I doubt it would kill you t/case unless you tried it on road.....
Cheers [url=http://www.wooders.com.au]Wooders[/url]
thats because toyotas are weaknastytroll wrote:I've seen a transfer go bang with 4.11 n 4.1 ratio's in a 75 series
my GUBanzy wrote:Dial up internet.........you'd post something and come back 2 beers later to see if it loaded.
Re: Diff Ratios
justinshere wrote:Hey
Posted a similar question in the Nissan section but i want more input.
What are other peoples thoughts on running a ratio of 4.375 in the rear and 4.300 in the front?
I thought it may cause abit of binding and something will end up snapping.
i thought u were after 4.88 or 4.6
my GUBanzy wrote:Dial up internet.........you'd post something and come back 2 beers later to see if it loaded.
Not doubting the T/case went bang - but i REALLY seriously doubt it was the 4.10 & 4.11 difference.nastytroll wrote:I've seen a transfer go bang with 4.11 n 4.1 ratio's in a 75 series
Infact for the dana diffs 99% of the time the ratios will be mixed 4.10& 4.11, or 4.56 & 4.55 etc....
Also I have seen people drive on dry bitumen with the t/case locked in 4hi (they wanted to upgrade) and drive over a few days the transfer case still showed not signs of damage - but it was a pig to turn untill the tyres slipped a bit
Anyhow my point is running different gears expoding t/cases is bit of a myth. The most common cause I have seen is where the prop shaft slip has been neglicted of grease, seized and the smashed the t/case.
Cheers [url=http://www.wooders.com.au]Wooders[/url]
also who the hell does 80k in 4wd on a hard surface?
they prob deserve there transfer to blow up and lodge in there but.
yes for verry short distances between tracks or on the beach but neither of these will cause wind up
they prob deserve there transfer to blow up and lodge in there but.
yes for verry short distances between tracks or on the beach but neither of these will cause wind up
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Hilux front and GU rear - for the momentHighway-Star wrote:May I ask why? Diff availablity or something...
I personally wouldn't, but sounds like some people would. If the vehicle had a centre diff it would be a piculular way of transfering more torque to the lower end (or am I just tired).
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Xcab Lux on 37 Treps
Xcab Lux on 37 Treps
Re: Diff Ratios
Yeah that would be ideal BUT i wanna get the truck started and if i can get away with running 4.3 and 4.375s with no probs i will do that for a little while.j-top paj wrote:justinshere wrote:Hey
Posted a similar question in the Nissan section but i want more input.
What are other peoples thoughts on running a ratio of 4.375 in the rear and 4.300 in the front?
I thought it may cause abit of binding and something will end up snapping.
i thought u were after 4.88 or 4.6
After the post in the nissan section ive decided i want to run genuine gearing not aftermarket. So 4.6 will be the go but 4.3s might have to do in the meantime.
I dont want the 4b to be off the road for anylonger than a weekend and it wont take any longer than 2 days to change out the rear diff.
Front will take longer cos of steering etc
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Xcab Lux on 37 Treps
Xcab Lux on 37 Treps
justinshere wrote:Hilux front and GU rear - for the momentHighway-Star wrote:May I ask why? Diff availablity or something...
I personally wouldn't, but sounds like some people would. If the vehicle had a centre diff it would be a piculular way of transfering more torque to the lower end (or am I just tired).
Got ya.
In a strange way I would relate it to running a weded diff on road. Its not the best analogy, but you see my point? If you have to do it, try it; then tell us how you go with it, so any future people can see if had any adverse effects.
Wheeling on completely wicked angles, without even looking stable.
Not really.
If it am right, the difference is about 1.7%, which doesn't sound like much, but with 33" tyres, the difference is 45mm per turn of the tyres. in 60 turns of the tyres, (or 162metres) you will be one whole turn of the tyres out.
On a hard surface, that will destroy a transfer case. (Doesn't have to be tarmac - smooth hardpack dirt would do it.
Many years ago, I was running a 33's with a 31 as a spare. Anyway, I had a flat and my G has no freewheeling hubs, so one front wheel was running a 31 and the rear was on 33's. Now I grant this is a 7% difference.
Anyway, I accidently bumped it into 4wd on the highway and the binding was so bad it was like a just jumped on the brakes.
Ford always used to run 4.09 front and 4.11 rear in their f series, but that is pretty insignificant. (0.4%)
Steve.
If it am right, the difference is about 1.7%, which doesn't sound like much, but with 33" tyres, the difference is 45mm per turn of the tyres. in 60 turns of the tyres, (or 162metres) you will be one whole turn of the tyres out.
On a hard surface, that will destroy a transfer case. (Doesn't have to be tarmac - smooth hardpack dirt would do it.
Many years ago, I was running a 33's with a 31 as a spare. Anyway, I had a flat and my G has no freewheeling hubs, so one front wheel was running a 31 and the rear was on 33's. Now I grant this is a 7% difference.
Anyway, I accidently bumped it into 4wd on the highway and the binding was so bad it was like a just jumped on the brakes.
Ford always used to run 4.09 front and 4.11 rear in their f series, but that is pretty insignificant. (0.4%)
Steve.
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