Offroad-Express

Hi all, I'm finding the 33" a bit much for the gearing on the kzj78,
I see from forum some have done new diff heads,
My question is has anyone done transfer case gears?
Marks adapters do some, not sure on cost. would like to have better low but leave high alone as run standard tyres day to day to save the muddys for play. Are there gears from another transfer case that fits to lower gearing?
Any help would be great

I went from 33" to 35" and my gearing's shit . I think the marks gears are around $2k so its not a cheap option and I remember seeing some US forums wingeing about them being a lot noiser that the OEM gears.

might be better off playing around with diff ratios if you've got the smaller 8" diffs?

Have a talk to Nigel at Just Cruisers in Rangiora he's not long put a set in his Prado and he's running 35s he went for the set with the 8% underdrive in high ratiohe'll tell you what you need to know.

Thanks for that, was thinking calling them for some parts I need anyway.

319usd for 5.29's cant beat it could do with the transfer gears too tho so let me know how u get on

mudmike wrote:Thanks for that, was thinking calling them for some parts I need anyway.

don't forget to post up what you find out about the gear sets

The 35's sure suck the power alright. Try turning them with a standard 3B diesel . Have been looking at these gear sets for while and am pretty sure thats the way i'll go. 4WD Upgrades are the NZ distributor and quoted about $2250. Thats just for the gears, you still need to have them fitted I spoke to Nigel a while back about these gears, he said they are cut differently and so are a bit noisier. But i doubt they'd be noisier than my motor anyway. Diff gears are another option, probably about half the price by the time they are installed. But the lower you go in the gears you reduce the number of gears that mesh. A 4.1 ratio diff has almost 3 teeth in contact whereas a 5.29 is probably closer to 1.5 teeth so potentially weaker.

H2OLOVA wrote:The 35's sure suck the power alright. Try turning them with a standard 3B diesel

I'd hate to think what it did to your 3B coz it definately took a piece out of my chev

the cruiser 8 7/8" diffs only go down to 4.11:1 ratio which is what most cruisers run anyway so it really only leaves the transfer gear sets to bring the gearing back down unless you go to the smaller 8" diffs

Sadam_Husain wrote:

H2OLOVA wrote:The 35's sure suck the power alright. Try turning them with a standard 3B diesel

I'd hate to think what it did to your 3B coz it definately took a piece out of my chev

the cruiser 8 7/8" diffs only go down to 4.11:1 ratio which is what most cruisers run anyway so it really only leaves the transfer gear sets to bring the gearing back down unless you go to the smaller 8" diffs

very rare, but I think you can get 4.3s for cruiser. Sig has been looking for some for a number of years now.

I doubt if 4.3 would make enough of a difference.

H2OLOVA wrote:I doubt if 4.3 would make enough of a difference.

yep, thats probably true. I run 33s on my BJ74, and I find that it labours too much in 4th at 50kph, so I have to run around town in 3rd gear all the time. 4.3s would make that better but probably still not good enough.

you need some flash engineer bloke with a calculator and lots of time to tell you what ratios are best. Or find an even flasher engineer bloke that can do it in his head.

skid wrote:you need some flash engineer bloke with a calculator and lots of time to tell you what ratios are best. Or find an even flasher engineer bloke that can do it in his head.

so long as the brainy enginners calculations dont work out that you need smaller tyres

Sadam_Husain wrote:

skid wrote:you need some flash engineer bloke with a calculator and lots of time to tell you what ratios are best. Or find an even flasher engineer bloke that can do it in his head.

so long as the brainy enginners calculations dont work out that you need smaller tyres

yeah, we'd all look stupid if we went back to the 215R 15s that the factory decided were the best tyre for the cruiser.

Sadam_Husain wrote:
the cruiser 8 7/8" diffs only go down to 4.11:1 ratio which is what most cruisers run anyway so it really only leaves the transfer gear sets to bring the gearing back down unless you go to the smaller 8" diffs

You can get factory Toyota 8 7/8" 5.29 gears
Mudzilla ran them in his old BJ73 with a healthy 13bt (heaps of boost, intercooled, propane) It could spin 36" centipedes on the road and never had a problem with the diffs being weak.

You can buy 5.29's for cruisers from the USA..

LOLYF wrote:You can get factory Toyota 8 7/8" 5.29 gears
Mudzilla ran them in his old BJ73 with a healthy 13bt (heaps of boost, intercooled, propane) It could spin 36" centipedes on the road and never had a problem with the diffs being weak.

never heard of them in 8 7/8" only in 8"? what did they come out in and were they ever released onto the NZ market vehicles

wjw wrote:You can buy 5.29's for cruisers from the USA..

your diffs would be 8" in your prado wouldn't they?

Have been looking at gear costs, the marks adapters gear sets are bit to much at this stage, but have been told about u.s. made gears 21 and 23 spline for $395 U.S. , which is much better, now have to do some research to see if they will go in my case, can get standard or 4.1:1,
4.7:1 or 5.1:1. and at that price and the exchange rate is the cheepest option I've seen. Oh they are trail tamer gears from advanced adapters.

Sadam_Husain wrote:

LOLYF wrote:You can get factory Toyota 8 7/8" 5.29 gears
Mudzilla ran them in his old BJ73 with a healthy 13bt (heaps of boost, intercooled, propane) It could spin 36" centipedes on the road and never had a problem with the diffs being weak.

never heard of them in 8 7/8" only in 8"? what did they come out in and were they ever released onto the NZ market vehicles

wjw wrote:You can buy 5.29's for cruisers from the USA..

your diffs would be 8" in your prado wouldn't they?

marty not wearing his glasses tonight.

Sadam_Husain wrote:

LOLYF wrote:You can get factory Toyota 8 7/8" 5.29 gears
Mudzilla ran them in his old BJ73 with a healthy 13bt (heaps of boost, intercooled, propane) It could spin 36" centipedes on the road and never had a problem with the diffs being weak.

never heard of them in 8 7/8" only in 8"? what did they come out in and were they ever released onto the NZ market vehicles

wjw wrote:You can buy 5.29's for cruisers from the USA..

your diffs would be 8" in your prado wouldn't they?

I think what Bill is saying is that you can get aftermarket R & P sets for cruisers that will gear them at almost any toyota ratio you want down to at least 5.29. With the dollar where it is at the moment, it is the perfect time to bring some gear in from the states.

kaney on here had to get a new transfer case on his prado (2lt-2 auto) and replaced it with one from another 70 series i think (im sure he can tell you) and it offset the gearing difference from his 33 and the standard 29s. about the same as in my truck going from 4.3 to 4.8 diffs. so they do come in different ratios factory maby try fining out if you can find a 2nd hand transfer case with the right ratios, might be the worth a look. his changed in low and hi range tho...

Pete

[quote="Sadam_Husain"]

never heard of them in 8 7/8" only in 8"? what did they come out in and were they ever released onto the NZ market vehicles

You find them in the backs of toyota dyna trucks, not sure if it was NZ ones or maybe only imports?

What Rok said

http://www.yukongear.com/PartsList.aspx ... lightID=23

http://www.yukongear.com/ProductDetails ... rodID=4318

Toyota Land Cruiser in a 5.29 ratio

Their expensive compared to the Hilux ones:

ZG TLC-529 $296.15 [21 Lbs]