landcruiser twin transfer or gears options

[rockcrawler31]

Hi all

Now that i'm running 37's, the clutch is starting to piss and moan a bit when trying to crawl stuff. Bad smells, bad noises are all par for the course. And the intercooled turbo isn't helping

So i need to look at gearing options. 4.88Yukons would bring the final drive back to standard, but if i want to run road tyres then i'm stuffed. Even with 35's it's going to be revving it's tits off.

I was considering gears for the split case with a slight overdrive in high range so i can run road tyres and deep low for wheeling with the 37's. This way i can have the 4.88's reducing stress on the driveline from the diff forwards and still cruise on streetable tyres.

Then i saw the prices of the gearmaster gears from Marks. Holeeeeeee sheeiiiit!!!!

so i went and looked at the prices for his cruiser crawler box - $3700 jeezus, i could put a fair whack towards an atlas for that.

So i looked at dual transfer cases, particularly out of the states. I can find plenty of stuff for Hiluxes but not much info on 80/landcruiser split cases. Can anyone tell me if there are cruiser gears or duals options out of the states or even from here that are more cost effective than marks

I did do a search on here for duals+transfers+gears but again, most of the stuff was for hilux's

[rockcrawler31]

Also, if i'm going Yukon gears i have the option of 4.56 or 4.88.

If i run only the gears and not transfer mods, the 4.88 will obviously be too high even for 35's on the road. I have worked out that 4.56 will be just about perfect on road with 35's and with 37's will be the equivalent of running 33.5" tyres with standard gearing. Do people think that's a good compromise?

[TWISTY]

Have got a similar situation with my FJ40.

One option is to get some extra low range is to fit a xfer from some of the landcrusiers with auto trans, can get around 20% reduction. I will be trying this soon.

There used to be two options for dual xfers in cruisers. Advance Adapters RockBox, and Marlin Crawler toy box. I think both used a hilux xfer in front of the cruiser one....dont think either of them are made anymore but.

Probably the nicest option is a Orion Case by adavance adapters.....better value then the Gearmasters, and lower low too.
http://advanceadapters.com/product/2437 ... e+Kit.html

[rockcrawler31]

Thanks for that, it's a start. I'm starting to think that i'm going to stick with a 4.56 diff gearset, since that leaves it streetable with 35's. I imagine that driving with the equivalent stock gearing and 33.5" tyres when the 37creepies are on should be pretty manageable. And that way if i do manage to find a cheap set of gears or a better option later on it will make it even better, but i'll be able to wheel in the meantime.

[bad_religion_au]

4.88:1 and run 37's full time?

[bad_religion_au]

also that orion is to suit the early single piece cases, not the later model split case twisty.

it also takes into account the case weakness for those not wanting /unable to throw a split case in.

[rockcrawler31]

4.88:1 and run 37's full time?

Because a bright fark off red cut down troopy with 5 inches of lift, covered in barwork and 35's doesn't already yell "hassle me please!"

No just kidding. Really it's because i need to tour in it too and 37's cruising around the countryside on the 2inch coils is taking the piss, as well as a horrendous waste of money

[TWISTY]

also that orion is to suit the early single piece cases, not the later model split case twisty.

http://www.atlas-tc.com/pdf/orion.pdf

Figured it covered most of them from the pdf above "1963 to 2002 Landcruiser Models" But yeah, didn't look into it anymore then that. Will do now but.

[80's_delirious]

What model troopie do you have?

I spent ages trawling the net and forums a while back and Marks was the only one I found for 80s boxes, Farking pricey and I read some pretty mixed reports on them.

Also they dont change your High range ratio which is 1:1, so it wont change your overdrive or final drive ratio.

the crawler geasets give a 25%reduction in low range, the crawler box gives up to 200% reduction

[crustybj60]

i don't think you'll find a "doubler" for an 80, but a toybox from marlincrawler will fit in front of your splitcase. what trans are you running?

i used a toyota h41 4spd toybox splitcase. it's about the same length as an h55f 5spd found in 40's 60's 70's.

i'll make up the top end with taller gears and a bigger tire. that's the trade off, but worth it for me.

gearing in a cruiser=$$$

cheers
crusty

[thrashlux]

Hi all

Now that i'm running 37's, the clutch is starting to piss and moan a bit when trying to crawl stuff. Bad smells, bad noises are all par for the course. And the intercooled turbo isn't helping

So i need to look at gearing options. 4.88Yukons would bring the final drive back to standard, but if i want to run road tyres then i'm stuffed. Even with 35's it's going to be revving it's tits off.

I was considering gears for the split case with a slight overdrive in high range so i can run road tyres and deep low for wheeling with the 37's. This way i can have the 4.88's reducing stress on the driveline from the diff forwards and still cruise on streetable tyres.

Then i saw the prices of the gearmaster gears from Marks. Holeeeeeee sheeiiiit!!!!

so i went and looked at the prices for his cruiser crawler box - $3700 jeezus, i could put a fair whack towards an atlas for that.

So i looked at dual transfer cases, particularly out of the states. I can find plenty of stuff for Hiluxes but not much info on 80/landcruiser split cases. Can anyone tell me if there are cruiser gears or duals options out of the states or even from here that are more cost effective than marks

I did do a search on here for duals+transfers+gears but again, most of the stuff was for hilux's

Why not run the 4.88's then run a fairey overdrive for on the hiway?
cheap option will get u what you want

i am running 5.29's thinking of doing just that

jonathan

[1MadEngineer]

sell your gearbox and buy an NV4500


GM 93-94 95/up GM; 93/up Dodge
First Gear 6.34 5.61
Second Gear 3.44 3.04
Third Gear 1.71 1.67
Fourth Gear 1.00 1.00
Fifth Gear 0.73 0.73
Reverse 6.34 5.04


so even with 4.11 diff gears x 6.34 1st x 2.488low = 64.8:1 not bad!!
and OD5th is BIG

http://www.high-impact.net/transmission ... nv4500.htm
http://www.nv4500.com/

[bad_religion_au]

sell your gearbox and buy an NV4500


GM 93-94 95/up GM; 93/up Dodge
First Gear 6.34 5.61
Second Gear 3.44 3.04
Third Gear 1.71 1.67
Fourth Gear 1.00 1.00
Fifth Gear 0.73 0.73
Reverse 6.34 5.04


so even with 4.11 diff gears x 6.34 1st x 2.488low = 64.8:1 not bad!!
and OD5th is BIG

http://www.high-impact.net/transmission ... nv4500.htm
http://www.nv4500.com/

what do they come in in aus tho?

[TWISTY]

sell your gearbox and buy an NV4500


GM 93-94 95/up GM; 93/up Dodge
First Gear 6.34 5.61
Second Gear 3.44 3.04
Third Gear 1.71 1.67
Fourth Gear 1.00 1.00
Fifth Gear 0.73 0.73
Reverse 6.34 5.04


so even with 4.11 diff gears x 6.34 1st x 2.488low = 64.8:1 not bad!!
and OD5th is BIG

http://www.high-impact.net/transmission ... nv4500.htm
http://www.nv4500.com/

what do they come in in aus tho?

And are they affordable? and in my case, adaptable to a Holden 5L V8?

[thrashlux]

sell your gearbox and buy an NV4500


GM 93-94 95/up GM; 93/up Dodge
First Gear 6.34 5.61
Second Gear 3.44 3.04
Third Gear 1.71 1.67
Fourth Gear 1.00 1.00
Fifth Gear 0.73 0.73
Reverse 6.34 5.04


so even with 4.11 diff gears x 6.34 1st x 2.488low = 64.8:1 not bad!!
and OD5th is BIG

http://www.high-impact.net/transmission ... nv4500.htm
http://www.nv4500.com/

thats a really good spread of ratios

but..
how will that go when touring does it mean that the engine may labor in one gear but rev its tits off in the next like if approaching a hill

thats why i have decided to go for big tyres = no overdrive
lill tyres = overdrive
this way i keep all std ratios toyota have nicely matched ratios

[1MadEngineer]

nv4500's are a VERY common conversion in the US. Advance Adapters to kits for most engines. I have a GM one with a chev pattern bellhousing and clutch setup sitting on my floor ATM.

the ratio range is sweet, mega low first for crawling then a nice spread 2nd to 4th, and a good 5th which is made for a V8 and 4.11 diff gears or better. They would be sweet for a comp truck as you could crawl in low range yet still do 60+kph in 5th. and even 1st hi range is still pretty low!

[bj on roids]

LT230!!

transfer case 3.3:1 stock low range!!

[rockcrawler31]

nv4500's are a VERY common conversion in the US. Advance Adapters to kits for most engines. I have a GM one with a chev pattern bellhousing and clutch setup sitting on my floor ATM.

the ratio range is sweet, mega low first for crawling then a nice spread 2nd to 4th, and a good 5th which is made for a V8 and 4.11 diff gears or better. They would be sweet for a comp truck as you could crawl in low range yet still do 60+kph in 5th. and even 1st hi range is still pretty low!

I like the idea of this, particularly given the HP they're happy to run, but i don't think any of their adaptors are going to work. They have adaptors for 40series toy, and hilux toy but i didn't see anything for 80series. If they do i'd have to find out if the 80 series petty box pattern is the same for my 75 1HZ box pattern. But this is still a pretty exxy option.

1000 bucks for a conversion kit
1600 bucks for the gearbox
???? for the clutch to go on the new input shaft into the box

sell my gearbox for what... 500ish?

so about 2300-2400 changeover.

[rockcrawler31]

Well i can't really see any options here that aren't going to cost a full on mint.

I'll be going 4.55's so i have to run 35's on the road (which i'd prefer not to). Both the NV4500 and the atlas boxes have normal high range gearing for 5th gear or high range in the transfer. running an atlas means going to a divorced t case so i'm up for the atlas box, plus adaptor plate to back of gear box, plus mods to driveshafts

NV4500 means buying box, plus front adaptor (if i can find one to fit) plus rear adaptor (and still overdrive matches normal cruiser overdrive)

LT230? i have no idea

[bj on roids]

NV4500 is cool, and there is transfer cases to bolt onto it. BUT

LT230 is already in Aus and fairly cheap, fairly easy to mod or adapt to your current setup, but would be some work involved. I see the t-cases on here for like $700 to $1000 pretty regular. But you need to be able to make your own adapter, not to hard, modded shaft and bit of aluminium, with some time and effort you could be out of it for a few hundred dollars tops.

I reckon, for a grand you could get away with it all plus tailshafts. If you got the box for $700. There is some t-cases that had an underdriven high range ratio too. Some are 1:1. So you could get the best of both worlds, 3.321:1 was factory low range, and I beleive for like $1500 you can get 5:1 gears, and even right down to 8.933:1 with a crawler box on it. I was looking into it and could hardly beleive the ratios available, the range, strength and price.

What motor you running?

[bj on roids]

NV4500 would be better if you wanted to V8 swap too, you would be best to buy the V8, NV4500 and the t-case and lump it in as one package.

For the cruiser, you are very limited.

[hulsty]

Well i can't really see any options here that aren't going to cost a full on mint.

I'll be going 4.55's so i have to run 35's on the road (which i'd prefer not to). Both the NV4500 and the atlas boxes have normal high range gearing for 5th gear or high range in the transfer. running an atlas means going to a divorced t case so i'm up for the atlas box, plus adaptor plate to back of gear box, plus mods to driveshafts

NV4500 means buying box, plus front adaptor (if i can find one to fit) plus rear adaptor (and still overdrive matches normal cruiser overdrive)

LT230? i have no idea

There is a REALLY cheap way to get lower gearing. If your handy with a spanner you could get it done for about $250. Get the low range gears from a automatic transfer case (88 onwards 12HT automatic) and put them into your transfer (i'm assuming your running a 1HZ with H55F?) Leaves high range unaffected and gives low range reduction equivalent to about 4.88 diff gears. I'm in the process of doing it now.

[thrashlux]

Well i can't really see any options here that aren't going to cost a full on mint.

you can fit the fairey overdrive to your 5 speed from a 4 speed transfer so you will have 3 ranges ie low, hi ,hi plus overdrive
thatw ill cost about 600 bucks

u can run your 4.88 and still run similar to std gearing with either sets of tyres

[rockcrawler31]

I like these last two options. With the diff gears i more or less have the big tyres sorted, and if i get the gears for the auto i can have even lower, with the fairey i can run standard tyres in HI.

How rare are the auto trans cases? Can you still get them genuine?

[bad_religion_au]

Well i can't really see any options here that aren't going to cost a full on mint.

I'll be going 4.55's so i have to run 35's on the road (which i'd prefer not to). Both the NV4500 and the atlas boxes have normal high range gearing for 5th gear or high range in the transfer. running an atlas means going to a divorced t case so i'm up for the atlas box, plus adaptor plate to back of gear box, plus mods to driveshafts

NV4500 means buying box, plus front adaptor (if i can find one to fit) plus rear adaptor (and still overdrive matches normal cruiser overdrive)

LT230? i have no idea

There is a REALLY cheap way to get lower gearing. If your handy with a spanner you could get it done for about $250. Get the low range gears from a automatic transfer case (88 onwards 12HT automatic) and put them into your transfer (i'm assuming your running a 1HZ with H55F?) Leaves high range unaffected and gives low range reduction equivalent to about 4.88 diff gears. I'm in the process of doing it now.

some of the later H55f's in the 75 series also had this lower ratio tho...

[thehanko]

Hi all

Now that i'm running 37's, the clutch is starting to piss and moan a bit when trying to crawl stuff. Bad smells, bad noises are all par for the course. And the intercooled turbo isn't helping

So i need to look at gearing options. 4.88Yukons would bring the final drive back to standard, but if i want to run road tyres then i'm stuffed. Even with 35's it's going to be revving it's tits off.

I was considering gears for the split case with a slight overdrive in high range so i can run road tyres and deep low for wheeling with the 37's. This way i can have the 4.88's reducing stress on the driveline from the diff forwards and still cruise on streetable tyres.

Then i saw the prices of the gearmaster gears from Marks. Holeeeeeee sheeiiiit!!!!

so i went and looked at the prices for his cruiser crawler box - $3700 jeezus, i could put a fair whack towards an atlas for that.

So i looked at dual transfer cases, particularly out of the states. I can find plenty of stuff for Hiluxes but not much info on 80/landcruiser split cases. Can anyone tell me if there are cruiser gears or duals options out of the states or even from here that are more cost effective than marks

I did do a search on here for duals+transfers+gears but again, most of the stuff was for hilux's

Why not run the 4.88's then run a fairey overdrive for on the hiway?
cheap option will get u what you want

i am running 5.29's thinking of doing just that

jonathan

yeah go this option and buy my 5.29's

[bad_religion_au]

LT230!!

transfer case 3.3:1 stock low range!!

are they the cases that came mounted to the C4's in some rangies?

[badger]

would those 12ht auto gears fit an 80?

[thrashlux]

would those 12ht auto gears fit an 80?

NO
it does not run a split case type transfer

[rockcrawler31]

would those 12ht auto gears fit an 80?

NO
it does not run a split case type transfer

Dammit!!! i was hoping that the BBM gears that you can still find around the place would fit my split box