"My point is there is no better gearbox.it comes down for what purpose your car is intended for and what type of torque or hp figures your engine will be producing.Drag cars will prob prefer glide autos,track cars prob close ratio gearboxes etc etc
Personally.for me there is no point running a supra v160 getrag gearbox behind an A12 powered race car because it can handle 800hp stock but the ratios don't match the engine and diff ...i guess it would be perfect for someone who just wants to cruise around.
and also because the a12 won't output as much torque and horsepower to warrant such a gearbox even though its stronger..

On the topic of trd gearsets,Do you have any idea how much a genuine TRD close ratio for a T50 landed in oz will cost you not including labour to fit it in?? The trd gearsets are intended to be paired with with the TRD final drive ring and pinion of 5.375.
You will be able to fit a w58 or getrag v160/161 for the price of an a-series t50 with a trd gearset if you would much rather a stronger gearbox...

and why would a decent gearbox last only for a short time??It wouldn't be decent if it lasts for a short time. Ts cups cars have been racing and running 56a-series boxes from the 1970s both in close ratio 4 speeds and 5 speeds.This were gearboxes designed by nissan omori/nismo for a12 race cars.

and as i stated before, i know some personal friends with rally cars and "weak" gearboxes who have never broken their gearboxes!

Once again,a big percentage of gearbox breakages are due to the driver skill.

Your prob better off to cut and shut a getrag v160 supra or w58 gearbox as opposed to a trd gearset a-series gearbox if your only after strength."



Im in the states and available Datsun 5 speeds are unobtainium.

I am not running a Datsun rear axle either. I have a Ford 8.8 Rear TracLoc for the 1200 right now, and I have a Winters quick change on the shelf needing to be sized later to go under the car.

I picked the T50 for as stated before. I dont want to have to worry about failure. If your friends are using Nissan stuff then cool on them. I cant get the models they have so....... T50

By no means am I being argumentative, and no offense intended. I got to go with whats easiest and reliable.

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D,no offence intended,

I would agree with you if your talking about 60series 5speeds on kms they have run.

also most going for such gearboxes are after more than just nissan heritage..i.e gear ratios,straight bolt on,weight etc
While to many gearbox ratios and diff ratios might not really be a big deal, for those racing, it makes a big difference esp in under powered cars that want to remain in the desired rpm range.

56a series 5 speeds only came out in the Japanese market Datsun 1200 GX5s.They are not your usual common datsun 1200s that see many kms.
How many genuine GX5s do you know of in australia?
They aren't many around in japan and most haven't covered alot of kms as they are highly collectable cars in japan.This is one of the reasons a 56 5speed won't last for months in yahoo japan for 1700aud!

Your comparing one gearbox to a rare gearbox that many haven't had any experience with in Oz..
Better shifting and smoother as compared to what?Have you ever driven a car with an a-series close ratio 56a 5speed?or a t-50 trd close ratio gearbox?or a gx5 5 speed? Are these statements of "better and smoother" coming from driving and testing all those gearboxes?

The leading Ts cup cars are still running this 56a close ratio boxes..What more proof would one want to attest to their pedigree or quality from nismo items built in the 1970s??

Granted the T50 is more common so can see why its a favourite in Oz.
But if stronger means better for all applications even for engines with 150hp u might as well go r154,getrag or w58.much cheaper than a trd t50 ready to install

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My point is there is no better gearbox.it comes down for what purpose your car is intended for and what type of torque or hp figures your engine will be producing.Drag cars will prob prefer glide autos,track cars prob close ratio gearboxes etc etc
Personally.for me there is no point running a supra v160 getrag gearbox behind an A12 powered race car because it can handle 800hp stock but the ratios don't match the engine and diff ...i guess it would be perfect for someone who just wants to cruise around.
and also because the a12 won't output as much torque and horsepower to warrant such a gearbox even though its stronger..

On the topic of trd gearsets,Do you have any idea how much a genuine TRD close ratio for a T50 landed in oz will cost you not including labour to fit it in?? The trd gearsets are intended to be paired with with the TRD final drive ring and pinion of 5.375.
You will be able to fit a w58 or getrag v160/161 for the price of an a-series t50 with a trd gearset if you would much rather a stronger gearbox...

and why would a decent gearbox last only for a short time??It wouldn't be decent if it lasts for a short time. Ts cups cars have been racing and running 56a-series boxes from the 1970s both in close ratio 4 speeds and 5 speeds.This were gearboxes designed by nissan omori/nismo for a12 race cars.

and as i stated before, i know some personal friends with rally cars and "weak" gearboxes who have never broken their gearboxes!

Once again,a big percentage of gearbox breakages are due to the driver skill.

Your prob better off to cut and shut a getrag v160 supra or w58 gearbox as opposed to a trd gearset a-series gearbox if your only after strength.

I answered your recent questions on previous post, even the stock T50 is a better box than any A series 5 speed close ratio or not for its shifting ability which is silk not clunky even after 200,000kms. You can even shift a t50 into gear without using your clutch they are that good.

For those who want original by all means but this still does not warrant the fact the toyota t50 is a superior box from stock.

People like Billzilla has a good write up on them if you are not convinced but my experience with all these boxes Ive owned in the last 30 years the t50 Ive reconsidered by overcoming my datto biased mentality to accept it is for its weight, a perfect alternative box for the A series.

The A series donk is a competitor to the K series which really is the toyota engine the T50 also sits behind on many guises. The T50 is so good it even sits behind 2t, 3t, 4age and many other toyota engines. t50 behind a hot 4age is like running a 60 series box behind an sr16ve.

Even the K series is a more reliable engine than the A series, not better in hp or higher performance just over engineered to last much like a U20 vs an L20.

I would much prefer to run a 71c series with a cut and shut for the extra 5-8kg or even consider someone like Matthew76's future t50 adaptor plates to A series auto bell or adaptor plate to the back of an A series so it fits the T series bellhousings.

at 177,000 yen the full T50 kit is a bolt on with balanced tailshaft, crossmember and all the bits clutch plate etc. very good buying.

Agree Matt

I chose a T50 for availability, Removable bell housing, and I can get TRD gear packs for this box.

I would much rather have a strong gear box that can handle my crappy skills vs a decent gear box that can only handle them for a short time.

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I know many cars running what others would call a "weak" gearbox,some even in rally with no issues whatsoever.The trick is simply the drivers' skill.
You will break any gearbox if you don't shift properly....

The "better" T50 box? Better because it can handle more tq/hp or?

Original stuff will always command more but for most of us the better t50 box
or other boxes will handle the rare frustration release we so desire

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I got a T50 for my A12. Getting close to doing the adaptation too.