Outer Limits 4x4 Board

Geez Bogged your persistant. I actually emailed Marks and they're still working on it (been put on the waiting list) . If I get info before its on here, then I'll Post it

Geez Bogged your persistant . I emailed Marks and they're still working on it (been put on the waiting list) . If I get info before its on here, then I'll Post it

AndrewPatrol wrote:Geez Bogged your persistant. I actually emailed Marks and they're still working on it (been put on the waiting list) . If I get info before its on here, then I'll Post it

is Hoss from Marks?

No, don't work at Mark's.
I am a gearbox and gear designer.
Did the original design for the Nissan low range gears for Mark's which rockhopper copied.
We of course have a backlash eliminator same as the factory gears.
The new 44% will have a backlash eliminator too.
I have had 2nd thoughts about the 24% reduction as I don't think people want to spend the money for only 24%.
The new 44% will be available at the start of November.
Mark H

yeah i'm starting to think possibly 85% reduction might be too much.

it all sounds like a much better option but my mates (i appreciate their opinion) are very negative towards the reduction gears saying i'll have to change to high range all the time while cruising between hills on fire trails and that i'll have higher fuel consumption (which aint such a big problem, i dont go 4bing to conserve fuel) and that they'll be little use on the beach.

They dont know what its like driving a petrol in certain situations! now i'm just whinging for not buying a diesel in the first place.

What about just changing diff ratio's? is it as good a bang for your bucks as reduction gears

Josh n Kat wrote:What about just changing diff ratio's? is it as good a bang for your bucks as reduction gears

Not the same thing by any means.

Diff ratios - you adjust both High and low, lose speed (higher RPM for = speed) when you change them/worse economy on road.., but better for overtaking...

But if you have gone bigger tires, it would be advisable, made a world of difference in my auto...

I agree with the stoppin changing high/low/high all the time, thats why these dont sound do bad as 84%... all depends on $.

yeah i've got a set of 35's which i only run on dirty weekends, otherwise its my crappy 33's.

but would the 44% reduction gears be worth the effort? another plus would possibly be there's no requirement to modify the transfer case as it says for the 85% reduction gears. dunno what it is that needs modifying but thats what i was reading on the marks website

Just reading through this thread and found it quite interesting. Does anyone have any updates on these new reduction sets? Or still waiting?

Also, like others mentioned, my patrol does run away a little too fast on steep downhills for my liking. Its a petrol. How much will reducing the gearing help??

pretty sure i saw a sign at marks site at the 4x4 show giving the same price of 1200 for all three gear reductions

dwaynes wrote:pretty sure i saw a sign at marks site at the 4x4 show giving the same price of 1200 for all three gear reductions

I had a feeling this would be the case.

bogged wrote: I had a feeling this would be the case.

The TRANSFER Case

TUFFRANGIE wrote:

bogged wrote: I had a feeling this would be the case.

The TRANSFER Case

Boom Tish.

dwaynes wrote:pretty sure i saw a sign at marks site at the 4x4 show giving the same price of 1200 for all three gear reductions

There is the same amount of work and material required to manufacture them as it is the 83%. Anyway I spoke to Mark at the show and he confirmed they will be same price as the 83%.

Hoss wrote:Did the original design for the Nissan low range gears for Mark's which rockhopper copied.Mark H

Big statement..
Do you have a date for the Marks gears coming out...

I've found the original thread on the patrol forum archives for the release of the Rockhopper gears.

From the 4x4 show I was told that the 44% reduction gear will be available before Christmas '05, to be sold at the same price as the 85% reduction gear.

So....same price.

Damn.

But as I said before I guess you're aiming at two different crowds with the 2 gearsets.

Will the 44% need transfer case and shifter grinding to fit?

No transfer case mods will be needed. The gears are almost the same size as original. I thought these could be cheaper at the start but numbers aren't enough to bring the set up costs down. Also the steel price rises in the last 12 months are running above 40% and 70% over the last 2 years.

Hoss wrote:No transfer case mods will be needed. The gears are almost the same size as original. I thought these could be cheaper at the start but numbers aren't enough to bring the set up costs down. Also the steel price rises in the last 12 months are running above 40% and 70% over the last 2 years.

Hoss wrote:
Did the original design for the Nissan low range gears for Mark's which rockhopper copied.Mark H

Big statement..
Do you have a date for the Marks gears coming out...

I've found the original thread on the patrol forum archives for the release of the Rockhopper gears

Is there any reason that you did not modify the high range at the same time?

Series 3's for sierras do both high and low range ratios therefore helping out gearing on the highway at the same time for those with bigger tyres.

This is the only thing stopping me putting the 35's on. The damn thing (4.5 GU auto) is too dam slow as it is.

maybe you can shed some light on this Hoss?

sierrajim wrote:Is there any reason that you did not modify the high range at the same time?

Series 3's for sierras do both high and low range ratios therefore helping out gearing on the highway at the same time for those with bigger tyres.

This is the only thing stopping me putting the 35's on. The damn thing (4.5 GU auto) is too dam slow as it is.

maybe you can shed some light on this Hoss?

As far as I know, High range is straight through the t/case (Like 4th in a gearbox) so doesn't actually run through any gearing.

Almost every 4wd runs a pass through high range - Sierras are one of the few that dont (landies are another example).

This is why rockhoppers for Landcruisers, Patrols, Hiluxes, Vitaras etc etc etc are unable to change high range.

Sierra guys dont know how lucky they are with that sometimes.

The transfers do run straight through so you can't change high range.
You can in 40 & 60 series landcruisers because they are gear driven in high range. Suzuki is also gear driven in high range. 80 series is also gear driven in high range but gears are only made to change the low range ratio.

bogged wrote: Hoss wrote:
Did the original design for the Nissan low range gears for Mark's which rockhopper copied.Mark H

Big statement..
Do you have a date for the Marks gears coming out... I know when the Rockhoppers came out...

The silence is deafening... obviously the copying statement isnt true.

bogged wrote:

bogged wrote: Hoss wrote:
Did the original design for the Nissan low range gears for Mark's which rockhopper copied.Mark H

Big statement..
Do you have a date for the Marks gears coming out... I know when the Rockhoppers came out...

The silence is deafening... obviously the copying statement isnt true.

Bogged, you're just a sh1t stirrer aren't you???

Thanks for the info on the high range guys.

Actually we could change the high range in cruiser and patrol. There's room for a second offset idler on the same shaft. It would more than double the cost though, and given the small number of people who'd actually need/ pay for them, it's just not high on the priority list.

I'll dig out the date when the gears were first designed.
Lets see if anyone else brings out another ratio like 44% reduction.
There are gears advertised for suzuki with a reduction of 170%. This is utter crap. It is a physical impossibility to fit that reduction into a standard suzuki trnsfer case. If you do the count on the numbers of teeth and do the calcs you'll find the real reduction is more like 60%.
The thing is the general public get sucked in because they don't know how to do the calcs. They fit the gears and the truck goes slower so it must be right?
Remember one thing about gears sold by Mark's.
*** AUSTRALIAN MADE ***
Any money spent stays in this country as it should.
HOSS

What's counting the teeth got to do with anything?
you could fit 3 times as many teeth on if you really wanted to and keep the same ratio.
one turn of output takes 6.129 turns of input....you do the maths

No intention of bringing out any different Patrol transfer gears.

Hoss wrote:*** AUSTRALIAN MADE ***
Any money spent stays in this country as it should.
HOSS

Funny thing is you drive a Patrol, was that made in Australia?

As much as i love my country i am a strong believer that the "made for Australian conditions" sales pitch is a bunch of rubbish.

I don't think that there is any need for a slinging match here, you have a product, rockhopper have another. Canning someone elses product is not a good thing, it generally makes the one doing the canning look like a fool.

sierrajim wrote:Funny thing is you drive a Patrol, was that made in Australia?

Or the Chev....