Question for People with G-series diff in their cars..esp KE70s

[qagzie]

Just wanted to know how heavy a Hilux diff feels behind a KE70. I've read lots of forums and people say it's overkill. How bad is it -the feel? Compared to the stock diff?

Does it greatly affect the weight distribution/balance of the car?

Would it be too much behind a 1996 1uzfe swap?


Someone please respond.

Thanks

M.

[Matt]

It is allot larger than you'd need, but if you have the diff already modified to fit, it'll be ok in the car.

YR21 Diff from a tarago would be a much better choice.

[Hen may possibly be a nut]

Many, many years ago I was speaking to Mr Shin (sadly no longer with us). He had a 4AGE AE86 and had just installed a G series diff in it. He said that despite what everyone claimed he didn't notice a difference with the extra weight or rotational inertia.

So, would it be overkill? Most likely, unless you plan on seriously abusing it or the motor has a turbo in its future.
Would it ruin your life? No.

[qagzie]

Thanks Matt.

Yes, the diff is already modified to fit,.... with Previa disc brakes. Was kinda worried about the weight issue.

[qagzie]

Many, many years ago I was speaking to Mr Shin (sadly no longer with us). He had a 4AGE AE86 and had just installed a G series diff in it. He said that despite what everyone claimed he didn't notice a difference with the extra weight or rotational inertia.

So, would it be overkill? Most likely, unless you plan on seriously abusing it or the motor has a turbo in its future.
Would it ruin your life? No.

Thanks Hen... Well, I have no plans for a turbo yet, but my money's on Mr. Shin's observation. (RIP). I guess there's only one way to find out...

We'll see.

[Sprinter86]

I have been using a G series in my AE71, mainly used for sprint and circuit days with some drifting along the way aswell.
I must say that i noticed the weight immediately when i first drove it with the heavy G in the back.
The car lost some of the typical 'Nimble' behavior (that we all love) and the feel that the small corolla should have,
Particularly noticed when drifting (transitions less snappy,

I have now switched to a MK2 Corona F series to try and get the feel of the car back.
Just my 2c, im sure everyones had different experiences, but mine was not particularly positive unfortunately.

[LittleRedSpirit]

I'm running the F diff from the mx as well and its pretty agile with the F diff in the car. I cant speak on G and how that feels, but I aimed at F because I like that its the Light weight idea compared to any other easy upgrade really. Its heavier than a T series but in a pretty stripped car with a w57 and alloy engine block it feels like a fun time. The weights effectively removed from the higher more spread out areas in the car and put back under the floor. Nothing about that is bad for handling. Its a lot heavier than a T series to carry around and install. T series is no worries for han solo but F series or bigger means bring the wookie.

In a perfect world, some kind of nitrited pankl built triple coated triple heat treated 4.5:1 T series 2 way would be doing the job, but its just physics it likely wont last no matter what you do if you want to drift or put the power from a bigger engine down. I've just always wondered whats possible with some kind of re engineered T series. Maybe in a car built to a really light rolling weight with high power.

[Hen may possibly be a nut]

Little red: I remember there is some mob (Weir??) that do fat axles, maybe even floating hubs, solid pinion spacers, etc, etc that are supposed to improve the reliability of T-series. I seem to remember that they claimed their T series survived behind SR20s. No idea if they were talking through their hat or not.

Found it - http://www.weirperformance.com/axlekitscompleterear.html

[qagzie]

Thanks guys for your input.

Funny thing is, the stock AE70 diff is suprisingly still holding up well behind the 1uz and W57. Not that I've really dared to drive it sooo hard- like it's stolen, but so far so good - probably because the car weighs almost nothing . According to what I had read online, I didn't expect it to last this long...coz I've done some good runs with the car already. The only issue is the lack of LSD... too much pointless wheelspin.

Now, based on what Sprinter86 and LittleRedSpirit are saying, perhaps I should hold off with the diff swap and enjoy the stock diff for as long as it lasts, while the G-series sits quietly in the shed waiting.

Cheers.

[Matt]

The standard diff is often dismissed as being strong, but to be honest i've seen people with turbo 4a's keep them for a number of years drifting before breaking them. They are marginally stronger than a t-series.

[qagzie]

The standard diff is often dismissed as being strong, but to be honest i've seen people with turbo 4a's keep them for a number of years drifting before breaking them. They are marginally stronger than a t-series.

Thanks Matt.

I'll take my chances and see how far it can go.

M.

[LittleRedSpirit]

I think theres a bit of a lack of sporty lsds for the G series too. Lots of factory LSDs but not a lot of trd 2way clutch lsds from memory that would drift well.

[qagzie]

I think theres a bit of a lack of sporty lsds for the G series too. Lots of factory LSDs but not a lot of trd 2way clutch lsds from memory that would drift well.

Indeed, i haven't seen 2 way stuff, apart from the $$$ aftermarket supra ones. But at some point i'll save up for a TrueTrac center. People say good things about them.

Cheers.

M.

[LittleRedSpirit]

I was reading about some differences in the Supra stuff, apparently theres 200, 204 and 208mm cw and pinion sets, and lsds to suit are not necessarily going to work with the live axle design, unlike f series where everything is crossed over and fits regardless of irs or live.

[qagzie]

I was reading about some differences in the Supra stuff, apparently theres 200, 204 and 208mm cw and pinion sets, and lsds to suit are not necessarily going to work with the live axle design, unlike f series where everything is crossed over and fits regardless of irs or live.

That could be true, but I've seen some [online] that have successfully been swapped into live axle. Ofcos there's massaging involved, plus the use of bearings from an older landcruiser or something like that.

Now, the only good thing I've read so far is that the centre spring in the Hilux LSD can be swapped for a stronger/stiffer one, or even simply putting a 3mm washer under it. This is a common mod done by guys on offroadexpress. They say it tightens up the lock effect... here's a link http://www.offroadexpress.kiwi/Forums/viewtopic.php?t=26402


I'm going to take this route once I figure out how to put it all back together.

M.

[qagzie]

Apparently there's a workshop in Nz that sells modified LSD units for Hilux diffs. Their units work like 2 way. Another link: http://www.club-k.co.nz/Forums/viewthread.php?tid=27767

[qagzie]

Update:Feedback and final thoughts about the G-series diff

Today I installed the G-series diff and went for a spin. It's heavy. Really heavy. Felt like I was towing something in the back. Could not take the high speed corners like before... i had to be careful. Car was so sensitive to the slightest bumps in the road.

So to conclude, I'll go the banana peel way and continue with the stock S-series. Apart from the insanely loud whining, it was quite perfect.

I don't recommend the G-series for our cars... unless you are perhaps above 500hp.

38183

38184

[Futo_gt86]

Weir performance sells a spool for the "S" series 6.38” diffs.
http://www.weirperformance.com/spoolslimitedslipunits.html
I tried emailing them not long ago about one, but no one ever got back to me?

[qagzie]

Weir performance sells a spool for the "S" series 6.38” diffs.
http://www.weirperformance.com/spoolslimitedslipunits.html
I tried emailing them not long ago about one, but no one ever got back to me?

Yes I've seen similar spools on speedway motors. I think they were called "Toyota 8-Bolt Steel Full Spools" or s'mthng like that. Cost about ~ $180.