gearing to suit 38's

[tjm_tj]

so i think i might have bought some 38" swampers
and i have some lux diffs lined up if i want them

firstly, will the lux diffs handle them(if not what do you recomend)
and secondly what gearing should i run, or should i say what is the deepest ring and pinions that will fit them

[want33s]

You'd probably be better off asking this question in the Toyota section. Not many Zooks gettin' around with 38's.

[ofr57]

chopzuki i think was running 44" on gu or gq's

an redzook was running 37" on lux's

[Pyrotech]

Chopzuki ran 44s on 80 diffs, and redzook ran 37s on luz diff, which is what i plan to do

i tihnk the 38s would be fine, but u will need to run longfields

[ZOOK60]

Chopzuki ran 44s on 80 diffs, and redzook ran 37s on luz diff, which is what i plan to do

i tihnk the 38s would be fine, but u will need to run longfields

I think you will find Chopzuki ran gq's

[locktup4x4]

I'm running 39x17 BFG Red Label Krawlers on my heavy 4Runner now. And I ran 38" TSL SX's for four years before that. Mine is a trail rig only so I went with 4:88's and I am still running the same gear set in the rear. I didn't break the front gear I sold the complete third member with my old axle housing. My buddy runs 37" MTR and 4:10 gear. His is a trail rig only also. For highway driving we obviously don't have enough gear. And get the Longs

Jason

[redzook]

set of 30spline longfields 4.88 diffs and u should be pretty indestructible

[sierrajim]

Or run 60 series diffs with Longfields. Wider than Hilux, stronger centres (although bigger pumpkins) and parts are readily available as per Hilux diffs.

[tjm_tj]

set of 30spline longfields 4.88 diffs and u should be pretty indestructible

that sounds like what i wanted to here

who's the best to buy said ratio's and axles from?

[sierrajim]

set of 30spline longfields 4.88 diffs and u should be pretty indestructible

that sounds like what i wanted to here

who's the best to buy said ratio's and axles from?

4.88's are a factory in some Hilux's.

4.88's are available aftermarket for 60 series (did i mention that 60 centres are heaps stronger than Hilux?)

Longfields are available Ex US through Longfield, you can also taklk to Chris at Off Road gear through their site www.locktup4x4.com.au Very helpful guy, excellent service eah time i've dealt with them.

[Highway-Star]

As for gearing, 38" is about 46% over standard. So you need at least that much high range reduction. Hiluxs can get a R&P around 5.2 ratio (check Hilux Bible etc for fitting them), which is about 40% lower than a Suzuki 3.7 diff. So a 5.2 diff and some Suzuki transfer gears would be slightly overgeared, but would turn the tyres at least. I'm assuming this car is not a daily driven town car so the overgearing should be acceptable...

The Hilux 4.88 R&P (32% lower) could also work combined with transfer gears, though with that size tyre it might be straining the little engine allot, to have the gearing at standardish (i.e. gear reduction same as tyre % increase). Personally anything higher would be unacceptable.

[redzook]

As for gearing, 38" is about 46% over standard. So you need at least that much high range reduction. Hiluxs can get a R&P around 5.2 ratio (check Hilux Bible etc for fitting them), which is about 40% lower than a Suzuki 3.7 diff. So a 5.2 diff and some Suzuki transfer gears would be slightly overgeared, but would turn the tyres at least. I'm assuming this car is not a daily driven town car so the overgearing should be acceptable...

The Hilux 4.88 R&P (32% lower) could also work combined with transfer gears, though with that size tyre it might be straining the little engine allot, to have the gearing at standardish (i.e. gear reduction same as tyre % increase). Personally anything higher would be unacceptable.

who cares wat high range is like?

and just for your info
my old zuk wen it was a daily driver on 37" bfg's measuring an actual 37" would do 100 easily (series 3's 4.88's )that was a 1.3L so ur 1.6 should have no probs

[redzook]

set of 30spline longfields 4.88 diffs and u should be pretty indestructible

that sounds like what i wanted to here

who's the best to buy said ratio's and axles from?

ring longfield direct
click the link in my sig

normally takes 3 or 4 days to your door (unbelivable service)

u would struggle to get stuff from an australian company any quicker

i have been lucky enuff that the 3 sets of diffs i have brought over the time have had 4.88's

[mrRocky]

early hiace vans have insane gering and the centres bolt straight in
i think its 6. something check toyota section first though

[redzook]

early hiace vans have insane gering and the centres bolt straight in
i think its 6. something check toyota section first though

higher ratio equals weaker

toyota stout maybe 6.1:1?? but they fit 60 series cruiser if i am correct?

[bazooked]

early hiace vans have insane gering and the centres bolt straight in
i think its 6. something check toyota section first though

higher ratio equals weaker

toyota stout maybe 6.1:1?? but they fit 60 series cruiser if i am correct?

yes, they were snapped up by all the speedway guys and you would be lucky to find a set now.

[tjm_tj]

thanks for all the replies guys, i didn't think i would get this much help

so in my searchs today i have tracked down a shaved front housing(about 40mm removed) with 4.88's and knuckles(no axles or brakes) and of a mate a got a rear diff with a lock-rite(drum to drum) but it is 4.56. he has also got some drive shafts for me

so now i need a second 4.88 ring and pinion and front brakes
then order the front axles/cv's

as for the transfer, i have a vitara lined up. i plan on fitting the 1.6 along with it's 5 speed and transfer, then mate up the sierra transfer to it.

i hope to pick up the wheels and tyres this week so i can start measuring up the front end for he big trim down(i plan to narrow the bonnet at the front to give it a buggy look)

and no, this little zook wont be on the road
thanks for all the info, keep it up

[redzook]

thanks for all the replies guys, i didn't think i would get this much help

so in my searchs today i have tracked down a shaved front housing(about 40mm removed) with 4.88's and knuckles(no axles or brakes) and of a mate a got a rear diff with a lock-rite(drum to drum) but it is 4.56. he has also got some drive shafts for me

so now i need a second 4.88 ring and pinion and front brakes
then order the front axles/cv's

as for the transfer, i have a vitara lined up. i plan on fitting the 1.6 along with it's 5 speed and transfer, then mate up the sierra transfer to it.

i hope to pick up the wheels and tyres this week so i can start measuring up the front end for he big trim down(i plan to narrow the bonnet at the front to give it a buggy look)

and no, this little zook wont be on the road
thanks for all the info, keep it up

zack rang me today lol i have a set of lux diffs down the side of my shed with 4.88's in them

its also impossible to shave 40mm off

[tjm_tj]

ha ha... zack was the mongral that told me 40mm

small world hey

[tjm_tj]

well i picked up the front housing and a 4.88 r&p today
housing hasn't been decked, but axle tubes have been strenghtend and the pumkin has been beefed up too

just need a center now and on more r&p set..... anyone?

[11_evl]

if you were to buy the longfield 30s, what inner gear do u use for the shaft. it doesnt say anything on the website

[redzook]

if you were to buy the longfield 30s, what inner gear do u use for the shaft. it doesnt say anything on the website

they just swap straight in

the upgrade with the longfields is were the inner axle ussualy necks down to go into the cv

it no longer necks down and stays a full 30 spline the hole way

if you get wat i mean

[11_evl]

i havnt seen a stock setup yet but im guessing a stock front axle starts of at 30 spline at the diff center than tappers down to 27 spline?? and the longs just stay 30??
thats easy enough
thankx

[nicbeer]

i havnt seen a stock setup yet but im guessing a stock front axle starts of at 30 spline at the diff center than tappers down to 27 spline?? and the longs just stay 30??
thats easy enough
thankx

stock and longs are both 30 spline, as in redzooks post.

also this is for hilux diffs as u may have read. i think front zook diffs are the only ones that are different from the rear for splines and such.

[Red_Zook]

i have a set of 4.88 lux diffs (laminated a bit), and getting a set of 34 transfer gears.
im planing to run 38's-39's
but it is a trail toy only...
should be good.. but i am running a twin cam 1600 and auto.
witch will help alot!

[tjm_tj]

well the purchase of the 38's fell though.

anyone got something laying around that i could buy

[A1]

well the purchase of the 38's fell though.

anyone got something laying around that i could buy

Im possibly going to sell my 37 krawlers soon to make way for some stickys if the the 1's I want are in stock ...........need to chase up asap

You may be after 15" rim size though ??

[tjm_tj]

could be interested in them, yet to buy rims so open to options


tonight i am putting in some 4.5(i think) reduction gears into my transfer.
scored them off a mate for nicks
together with the 4.88 diff ratio's this will work out a bit better