Auto`s off a 4Y

[4sum4]

Anyone had any experinces with the Auto`s that came out with the 4Y 4x4`s,Will be doing a bit of load work and a daily driver

[Sketch]

ah, i've got one in my garage, not sure what i'm going to do with it, I'm not sure what you're asking though?

it never failed me, the motor did though lol
all i would recommend if you're going to give it a beating is to make sure the cooler doesn't get filled with mud.

[ottie]

ive got one im my 86 runner and its fine but not as good as a manual but it does the job.mine is a 'a' type which if im not mistaken is even behind some 2.7 lux's.the overdrive tends to drop the revs to much tho.

[DAV029]

works for me, tows a 4.5 mtr f/g boat fine and heaps of bush work

[Toyo Truck]

Hey Gareth,

If it is like 90% of automatic hilux variations, it will have an
A340F gearbox. Is it 3-speed with o/d?? Then its the A340F.
This is probably one of the most popular Auto gearboxes of them all.
The A, stands for Aisian, the maker of the box. It was sold to both
Toyota AND Nissan, although due to nissans bad not having removable
bellhousings, they look a little different, but they are the same inside.

These are GREAT boxes. I had one in my Cressida (A340E) and it
was a TROJAN, did HEAPS of burnouts and 2nd gear drifting in it.
Heaps of towing with the 7M-GE in front of it with approx double the
HP and torque (mods) with no issues, the motor blew a head gasket
before the gearbox even broke a sweat. These boxes are found in
ALL non-turbo supras, soarers, chasers, crestas, etc.

My mate has an A341E, which is the "turbo" variant. These are even
stronger again, and handles over 200Kw with EASE, shifts like a stock
vehicle! Heaps of drifting and burnouts too!

Alot of the OG rear-drive lexus used A340s such as the LS400, behind a
1UZ the GS300 behind a 2JZ-GE. The newer lexus cars use another
variant of this box called the A350...This is essentially the same box,
but with 5 gears. In good working order, you will not find a smoother
changing box than this one, hence why it was used in most lexus'

If this was a "bad" box, or had any major issues, Toyota would never
have continued using them in new model cars, lexus at that
nor would they bother having it modified to a 5-speed configuration.

In short, I think you will be fine with this box, especially with a tiny
diesel motor up front. They are strong and reliable. The only thing
I would suggest is get a larger AM oil cooler as the fluid can get hot
during towing (causing the shift lever to warm up that is all).
After I fitted a cooler, it was fine

Cheers,
Bart

[bulldogy]

I think you will find the auto behind a 4Y will be a A340H meaning it has the tcase as part of the auto. surfs came with the A343F divorceable T case and the newer Lux comes with the A340E or A340F from memory.

you can get adaptors for the intergrated A340H to put a gear driven case but it is more involved than the others.

[Toyo Truck]

Yeah, what he said. /\

That is good stuff to know tho bulldoggy.
Do ALL the different A340E Auto variations come with a chain drive
transfer case?? Can you get an adaptor to change it to gear drive?
How much are these roughly??
I have only had experience with all the 2WD versions.
All my 4WDs have been manuals.

We hammered the shite out of an A341 ALL DAY today at Oran Park.
With a boosted 1JZ-GTE twin turbo up front, coilovers and a Cusco
1.5 Way LSD up back, so PLENTY of pressure on it. The car overheated
twice, but the gearbox was sweet as. Did not miss a beat all day long.
Very Fun.

Cheers,
Bart

[bulldogy]

Yeah, what he said. /\

That is good stuff to know tho bulldoggy.
Do ALL the different A340E Auto variations come with a chain drive
transfer case?? Can you get an adaptor to change it to gear drive?
How much are these roughly??
I have only had experience with all the 2WD versions.
All my 4WDs have been manuals.

We hammered the shite out of an A341 ALL DAY today at Oran Park.
With a boosted 1JZ-GTE twin turbo up front, coilovers and a Cusco
1.5 Way LSD up back, so PLENTY of pressure on it. The car overheated
twice, but the gearbox was sweet as. Did not miss a beat all day long.
Very Fun.

Cheers,
Bart

Bart

As far as i am aware they all came with the chain driven T case i did a lot of research into it a few years ago when i did duals on the A343F.

If you look at where the T case bolts to the intermediate housing between the case and auto if it has nine bolts and is a sort of /_\ shape then you can change it to a gear driven case, best thing is if you had say a Prado or the newer Lux with a left Drop and wanted duals they make it for the left drop or if you wanted a sas and wanted a hilux or GQ diff then you get the right hand drop variant they have the same bolt pattern just one is made for left and right so it is pretty good for the autos on the hilux prado etc or all A34* Variants without having to go with a flipped toyota diff or a dana.

price i will have to get back to you but for the plate approx $575 to your door with coupler etc Marlins style ,or you can get the AA one that is ok for RH drop only.

They are an extremely tough box including the 340H a lot stronger than people think so its worth it rather than a conversion which im sure would cost more just make sure you use a good tranny cooler like any other.

Hope this helps some

Dave

[AcTioN13]

just a question, the chain driven transfers, are they any weaker? and if pulling a manual out of a hilux and replacing with auto, would driveshafts still match up? or are they different lengths?

[bulldogy]

Drive shafts are diff lengths the rear are about 3" shorter for the auto than the manual from memory.

They say the chain drive is weaker because of the chain and bits but marlin now produces crawl boxes for the chain case so he must think they are strong enough to cope with extra stress or he wouldn't have made them.

Hope it helps

Dave

[AcTioN13]

might just stick with a clutch... swapping to auto is seeming to be more of a hassle