Hilux Rear Diff problems again!

[collins110]

Hi guys just here for some input into my current problem with the lux. just the other week i broke a tooth off the pinion. The air locker, crown wheel and pinion have been replaced by ARB not long ago (just long enough to miss warranty). Now my questions

1: why does this keep happening?

2: is it a good idea to upgrade to a higher quality crown wheel and pinion from locktup http://locktup4x4.com.au/hilux-solid-fr ... r-740.html" onclick="window.open(this.href);return false;

or

3: Just do a complete swap for Landcruiser or Patrol Rear coil/diff setup

[Zuri92]

what do you do with the car? if it does not see much on road use then reducing the backlash in the rear diff reduces the chances of smashing things. backlash is recommended for on road but no back lash is good for off road only, as no backlash on road can cause too much heat. and yes using stronger aftermarket gears will help. what engine are you using and what are you doing with the car. what tyres?

[collins110]

what do you do with the car? if it does not see much on road use then reducing the backlash in the rear diff reduces the chances of smashing things. backlash is recommended for on road but no back lash is good for off road only, as no backlash on road can cause too much heat. and yes using stronger aftermarket gears will help. what engine are you using and what are you doing with the car. what tyres?

the lux is used for everything, road and dirt. at the moment its running 31x10.5x15 (plans for 33x12.5) and the original 4y 2.2lt engine (plans for v6 or v8). i want to be able to build something thats good on road and off without making too many compromises either way. iv been doing some research on donor diffs that are stronger like patrol or landcruiser. however i would like to go for something with rear disc. i dont think i have the right skills at the moment to be stuffing round with coils and links but i feel confident with leaf springs. would it be easy to convert a coil sprung diff like and 80 series or gq to fit the lux?

[94lux]

Hey mate just stick with the hilux diff. You are only running small tyres and the hilux diff will easily keep up with 33's. My advice go for the stronger gears like Nitro's and get a rear disc conversion done with the money you save from changing diffs around and all the mucking around you'd have to do. With the air locker and Nitro's you'll be fine running 33's. If you want unbreakable get chromolly axles and cv's especially if you're thinking v8.

[monster fj]

Hi guys just here for some input into my current problem with the lux. just the other week i broke a tooth off the pinion. The air locker, crown wheel and pinion have been replaced by ARB not long ago (just long enough to miss warranty). Now my questions

1: why does this keep happening?

2: is it a good idea to upgrade to a higher quality crown wheel and pinion from locktup http://locktup4x4.com.au/hilux-solid-fr ... r-740.html" onclick="window.open(this.href);return false;

or

3: Just do a complete swap for Landcruiser or Patrol Rear coil/diff setup

maybe its ure driving style to

[coopster]

yes i think you use the right pedal to hard

i got 35s locker with no problems

[Zookified]

I ran a set of 33 muddys for about 60 000km on my lux. 2.8 turbo running 13pound boost. Raped the shit out of it constantly and didnt care about the driveline and never had a diff or gearbox problem so I dont think the problem is to much right foot

[Zuri92]

there is a difference betwene too much right foot and too poor of clutch control. you can have your foot to the floor and its no problem, power doesnt smash things, it is shock loading that does. for example dumping the clutch with revs, trying to drive a hill with the car bouncing and crap like that is a really bad situation, as it loads and unloads the diff and axles etc. if you can use lots of right foot, but let the clutch out in a way that it loads everything up slowly instead of a sudden jolt, and if it starts to bounce, back off and try another line.

i havent had mine running for long but i have given it a fair go every weekend, i have 36 simexes, dual cases and a 1 uz with the rear spiders welded, so i have lots of torque and lots of traction and i am yet to see any crownwheel and pinion problems, yes i broke one diff, but that was the spider gears not the pinion etc. the thing is, i dont dump the clutch not do i let the car bounce with the foot on it. but it does sweet burnouts in high range.

just get some nitro gears and ask for minimal backlash but still have a little bit to reduce binding and heat buildup. and you shouldnt break them at all with the 2.2l engine not untill you get some reduction gears or big wheels anyways.

fitting a gq diff or whatever is a bad idea. they are way too wide for a daiy driver and you will need huge spacers on the front to give you the same track as the rear, not to mention an awning as a flare. if you really want to, put the rear diff out of a 60 series in the rear, they have big ring gears and are only 3 inches total wider than a lux diff, so a pair of 1.5 inch spacers on the front will have it tracking evenly.

[monster fj]

there is a difference betwene too much right foot and too poor of clutch control. you can have your foot to the floor and its no problem, power doesnt smash things, it is shock loading that does. for example dumping the clutch with revs, trying to drive a hill with the car bouncing and crap like that is a really bad situation, as it loads and unloads the diff and axles etc. if you can use lots of right foot, but let the clutch out in a way that it loads everything up slowly instead of a sudden jolt, and if it starts to bounce, back off and try another line.

i havent had mine running for long but i have given it a fair go every weekend, i have 36 simexes, dual cases and a 1 uz with the rear spiders welded, so i have lots of torque and lots of traction and i am yet to see any crownwheel and pinion problems, yes i broke one diff, but that was the spider gears not the pinion etc. the thing is, i dont dump the clutch not do i let the car bounce with the foot on it. but it does sweet burnouts in high range.

just get some nitro gears and ask for minimal backlash but still have a little bit to reduce binding and heat buildup. and you shouldnt break them at all with the 2.2l engine not untill you get some reduction gears or big wheels anyways.

fitting a gq diff or whatever is a bad idea. they are way too wide for a daiy driver and you will need huge spacers on the front to give you the same track as the rear, not to mention an awning as a flare. if you really want to, put the rear diff out of a 60 series in the rear, they have big ring gears and are only 3 inches total wider than a lux diff, so a pair of 1.5 inch spacers on the front will have it tracking evenly.

diss agree with the gq diff there heaps stronger over all and if u do both diffs there is no need for spaCERS AND AZ FOR A AWNING FOR UR GARD BUILD A EXO THEN ATACH FLARES THEY WILL COVER IT ANY THING IS POSIBLE GO GQ DIFFS ALL ROUND THATS WHAT IM DOOING MUTCH STRONGER THAN THE PISS WEEK HILUX DIFF

[Sic Lux]

For what it sounds like your using for it i'd stick with lux diffs, Make sure there set up right thats the biggest problem most people won't give carrier or pinion bearings enough preload and thats the fastest way to break shit

[RIZZO]

agree with sic lux, preload is extremely important....
gq diffs are 200 times stronger than any lux or cruiser diff, bottom line if you want a trouble free driveline throw the trol diffs in or better yet just buy one, you wont look back, gu4.8 200kw turning 36"pedes for nearly 4years now, never had a drama yet,

[collins110]

agree with sic lux, preload is extremely important....
gq diffs are 200 times stronger than any lux or cruiser diff, bottom line if you want a trouble free driveline throw the trol diffs in or better yet just buy one, you wont look back, gu4.8 200kw turning 36"pedes for nearly 4years now, never had a drama yet,

yeah thats the plan. going to finish up the lux and sell it on hopefully to get a swb patrol

[Zuri92]

lets not turn this into an argument about who is better for F sake. pull your head out of your ass and consider that instead of talking it down i was simply trying to resolve the guys problem. he mentioned putting troll diff in the rear. then you need spacers or a troll diff in the front, then you say put an exo on it.

seriously why the f#ck would he want to do that to a car that is not used for comps or even extreme tracks, its just stupid not to mention the ammount of money he has just thrown at a perfectly fine truck that just had a couple of diffs break. and it is now illegal, has a wide ass track, massive flares and an exo, all of which he doesnt need nor does he probably want to spend the money on........

and why the capitals, do you think that they enhance the appearance of yourself, coming across as more manly and like you know what the hell you are on about? grow up and instead of putting S#!7 on people who are giving valid suggestions maybe you could pitch in with something usefull instead of causing an argument because you think your way is the only way for each and every car.

and to set the record straight. i never said that patrol diffs were less strong or any other way of saying it, just that it is more work than is required to fix this mans problems, was a suggestion, nothing more. standard, versus standard. patrol diffs are stronger than hilux it is a fact. but hilux diffs can be made stronger than the factory made tham aswell. but so can patrolls.


sorry about the rant but i believe it was called for.

i have to agree with sic lux, the preload on the bearings does also contribute greatly to the longevity of the differentials. by far the easiest and possably suitable solution would be to fit some nitro gears, reduce the backlash and crank the bearings a little. nt everyone is having the troubles you are having so that makes one think that it may be the way it is set up rather than the fact it is simply 'hilux'

if you feel like you would want to go with patrol differentials and are prepared to fork out the dollars and effort to fit a diff that is pretty damn strong and a sure improvement over the standard hilux gear then go ahead and put them in, you will be happy, they most likeley wont break and life goes on. its really up to you and how much dollars and work you want to put in...