Getrag 6spd

[ma70mkiii]

How hard is it to mate a getrag 6spd tranny to a 1jz and what all would you need to do it. I am going to be driving this car quite frequently and mostly on highway and was wanting a lower gear so this thing won't guuzle the gas like my 7m does. Plus I figure a 6th gear will help a little even if I have to shift 1 more time.

[AF1JZ]

Once again, search. The problem with the Getrag is that it doesn't fit in the the tranny well without a lot of modification. Not worth it. Plus, the tranny's are about $3000.

Just keep your R154 and change out the rear end for one with a different ratio.

[bigaaron]

I have one for $2800, but there are other parts needed on top of that.
You would want to regear your diff with a lower ratio (~3.2)and make a custom driveshaft. You wouldn't have to make a complete driveshaft, just the front half, which I would do at cost to help with the project. You would also need a 6 speed clutch and flywheel. It has a slave and fork included.

[Jostar]

I have one for $2800, but there are other parts needed on top of that.
You would want to regear your diff with a lower ratio (~3.2)and make a custom driveshaft. You wouldn't have to make a complete driveshaft, just the front half, which I would do at cost to help with the project. You would also need a 6 speed clutch and flywheel. It has a slave and fork included.


Who can make a final gear ratio that low for MKIII?, I have only seen a 3.25 final gear ratio for the MKIII once, It came out of a TURBO A model, A guy from holland has the diff, Is there a company that can copy that final gear ratio & make it, I know it will be custom & asking TRD will be impossible to get a answer from then cause they probably think am crazy.

[viperkillertt]

You will not receive much fuel savings with the 6 speed. The final drive ratio is very similar to the r154. So not a good idea.

[bigaaron]

Who can make a final gear ratio that low for MKIII?, I have only seen a 3.25 final gear ratio for the MKIII once, It came out of a TURBO A model, A guy from holland has the diff, Is there a company that can copy that final gear ratio & make it, I know it will be custom & asking TRD will be impossible to get a answer from then cause they probably think am crazy.

Toyota is not the only one who makes a ring and pinion set. Call an off-road drivetrain place in yor area and inquire about it.

[OneJArpus]

if i had the $$ i'd do it for 1 reason. It would be cool to downshift into 5th :)

[bigaaron]

You will not receive much fuel savings with the 6 speed. The final drive ratio is very similar to the r154. So not a good idea.

It's not about fuel savings, it's about a manual transmission transmission that can handle 1500hp!!! :aigo:

[OneJoeZee]

It's not about fuel savings, it's about a manual transmission transmission that can handle 1500hp!!! :aigo:

But that's not the intention the OP expressed.


I am going to be driving this car quite frequently and mostly on highway and was wanting a lower gear so this thing won't guuzle the gas like my 7m does. Plus I figure a 6th gear will help a little even if I have to shift 1 more time.

He just has a misconception that 6spd = lower gear/better gas mileage. Which isn't true.

If the Getrag was a double overdrive, it would have made sense.

[bigaaron]

It's going to cost like $6000 even if he did the install himself, it would take a really really really really long time to make up $6000 in gas savings.
That's why I disreguarded the origional question and just stated the obvious.

If you just want to save gas buy a cheap daily driver that gets 30+ mpg.

[OneJoeZee]

It's going to cost like $6000 even if he did the install himself, it would take a really really really really long time to make up $6000 in gas savings.


Kinda like buying an expensive hybrid then counting your pennies til it actually starts saving you money.:biglaugh:

[Jostar]

Toyota is not the only one who makes a ring and pinion set. Call an off-road drivetrain place in yor area and inquire about it.

To be honest with you i wouldn't know who to call, Do you have a company in mind?? can you help on getting info on the custom ring and pinion??

[EvoLuTioN]

Jaws Gear in Sac :)

[Jostar]

Jaws Gear in Sac :)

Will the ring & pinion fit in the MKIII pumkin????
I don't wanna go with a solid axle or cut up my car.

[tlo86]

another getrag question thread? :)

[foreverpsycotic]

:nono:

No reason to do it, get a beater.

[Spaniard]

Once again, search. The problem with the Getrag is that it doesn't fit in the the tranny well without a lot of modification. Not worth it. Plus, the tranny's are about $3000.

Just keep your R154 and change out the rear end for one with a different ratio.

Lots of modification? I dont think so. Maybe with shifter linkage, but a couple good bangs to the tranny tunnel and it fits.

[SupraClaou]

Lots of modification? I dont think so. Maybe with shifter linkage, but a couple good bangs to the tranny tunnel and it fits.

+ 2
Two bangs' to the tunnel will do !
A guy in Australia did the getrag installation on mk3 supra :icon_razz

[foreverpsycotic]

I have seen it done, but IMO there is no legit reason to do so. Anything north of 500whp for me and its time to swap to auto.

[Jostar]

I rather have a getrag, I have met a few big horse power supra owners & have told they rather have a 6 speed than a th400, TH400 for drag racing is the shit! The guy that i met told me that the tranny runs real hot & he had so many problems with the torque converter it wasn't funny.

[foreverpsycotic]

I rather have a getrag, I have met a few big horse power supra owners & have told they rather have a 6 speed than a th400, TH400 for drag racing is the shit! The guy that i met told me that the tranny runs real hot & he had so many problems with the torque converter it wasn't funny.

Who built his setup if you don't mind me asking.

[Jostar]

Sound performance, I believe there top notch too on th400s,
they have the only th400 with overdrive & it can be control with the
AEM ems, that's if you have the money for it.

[foreverpsycotic]

Yeah, I'll probably do the same thing that I'm doing with my single kit. Piece it together and save a lot of cash. IIRC it cost a local member 2500 to do his th350 swap.

[Jostar]

Well one of my closest friends has a friend that used to work at sound performance & he can def help you on a th400, i think he builds them...
I am no too fond of autos..... i rather save the loot for a getrag & custom ring & pinion....

[foreverpsycotic]

Ide rather run 10s with 5-600whp than 900whp. It comes out to be a little cheaper :)

[OneJoeZee]

Well one of my closest friends has a friend that used to work at sound performance & he can def help you on a th400, i think he builds them...
I am no too fond of autos..... i rather save the loot for a getrag & custom ring & pinion....

The general concensus on SF from those who had 6spd then swapped to a TH400 seems to be that if you enjoy driving your car around regularly and on the freeway, a TH400 sucks. If you're only worried about your drag time, then it's great.

Alot of them either sold their TH400 cars for another 6spd car or swapped back to a 6spd.

[The Reaper]

^^ werd

[Jostar]

The general concensus on SF from those who had 6spd then swapped to a TH400 seems to be that if you enjoy driving your car around regularly and on the freeway, a TH400 sucks. If you're only worried about your drag time, then it's great.

Alot of them either sold their TH400 cars for another 6spd car or swapped back to a 6spd.


You are very right, i enjoy driving my soo much, I am even selling my 450hp mitsubishi galant vr4, so i can get my supra up & running (rodknock) but back on topic, like i said, you are very right on people switching from 6 speed to auto back to 6 speed, th400 are incredible at handling power, highway driving just sux, I am gonna get a getrag after i buy my house next spring, I'll keep you people update, I just need more info on the custom ring & pinion.

[foreverpsycotic]

Dude, don't sell the GVR4. That car is way too awesome to sell and you might not be able to get what its worth.

[Jostar]

Dude, don't sell the GVR4. That car is way too awesome to sell and you might not be able to get what its worth.

Man i know hwat you mean, I have to sell, i need the money so i can pay everything i owe so i can get a house around spring, I have spend my money in the right places on the galant, I broke the tranny, i upgraded to the best, I got a fully built tranny from sheperd, timing belt snapped, i got a head built by AMS, BIg ass intercooler, My interior.... i replace the interior with a evo 8 interior, front & back seats, suspension, took me 3 months to get the danm springs from australia (whitelines) i recently upgraded to a SCM 61 turbo, well
i have spend over 20 grand on the galant & onre of my closes friend is buying the car from me..... sorry for goin going off topic... but you see, if i say i want a getrag.... i'll get a getrag installed, I just want more info on the custom ring & pinion, I don't want to cut up my baby for a solid axles crap...

[Spaniard]

For the ring and pinion, I'm sure something can be sourced. There must be a combo out there. I'm sure Marlin Crawler knows.

[Jostar]

[QUOTE=Spaniard]For the ring and pinion, I'm sure something can be sourced. There must be a combo out there. I'm sure Marlin Crawler knows.[/QUOTE

How can i get in touch with them??? phone number or website.

[Andre]

Hi I am from Holland

And sorry about my english thats why i am posting more pics then words:icon_razz

I hope we will understand each other I have an RSP Mk3 with an 1.5 JZ 6 speed single Turbo etc etc didi the swap myself

http://i16.tinypic.com/5xoku1u.jpg

http://tinypic.com/2cwsj7p.jpg


And yes you can find an 3.25 Diff for an Mk3 the Turbo A came with an 3.25

http://www.supras.nl/phpBB2/attachments/thumbs/t_100_5311_213.jpg

http://www.supras.nl/phpBB2/attachments/thumbs/t_100_5293_728.jpg

I have more pics about the shifter where you have to bang the tunnel etc etc so iff some one need info let me know

Iff you swap the 6 speed you want to go as low as possible (diff)

Mk4 is like 3.2 and Mk3 is 3.73

With te 6 speed and diff 3,73 you have to shift to many times the 1 speed is very short

Butt cool for spinning wheels etc etc :icon_bigg

Butt i have more info

We (mk3) can go lower then 3.25 :sarcasm:

Gearcode G662 is what you need it came in toyota trucks its 8 inch and it wil fit the mk3 diff

Gearcode G662 its 3.07 and it came in toyota trucks

[AF1JZ]

Lots of modification? I dont think so. Maybe with shifter linkage, but a couple good bangs to the tranny tunnel and it fits.

I apologize. I guess I misread the thread some time ago when I first learned of it. Whoever it was made it seem to be a PITA.

On the other hand, this has been covered before. So, that's why I said to Search.

[Jostar]

Can anybody make a copy of this guys ring & pinion??? I ask curt aigner from elmhurts toyota about this diff, It think he misunderstood me, his reply was MKIII never came with this lower ratio.... it be great if someone can copy this ring & pinion.

[Spaniard]

Andre, great car! Nice find. Thank you for the info.

[Big Wang Bandit]

I love my TH400

On topic, The 6 speed is a dream to drive.

[EvoLuTioN]

I love my TH400

On topic, The 6 speed is a dream to drive.

.... ... ... ... gtfo

oh wait nvm, I forgot :D but still gtfo =)

[Zazzn]

Whats with the th400 talk it's shit, why not just upgrade your a340E?

Guys have pushing 9's in mk4's so far with the BL bulit stockers.

I'm so undecided what to do after my next r154 breaks. I want a 6 spd but I odn't want to drop 6 more k on my mk3 to have a 6 spd.

Add 10 more and i can buy a 1993 JDM mk4. I've already put far too much in to my mk3.

But i really dont want a auto! I like to go around a track not just 1/4

[Jostar]

How much power can the 3.07 ring & pinion handle???

[foreverpsycotic]

Whats with the th400 talk it's shit, why not just upgrade your a340E?

Guys have pushing 9's in mk4's so far with the BL bulit stockers.


I don't have an a340e to begin with, let alone the harness and ECUs to suit them. I wouldn't really mind having my top speed restricted to a max of 140 because I don't ever plan on going past 140. Its cheaper to swap my r154 transmission to a TH350/TH400 and get my car into the 10s than it is to get enough horsepower to get into the 10s while keeping the r154. Cheap, Reliable AND Fast, Ill have all 3.

[str8_6]

just get a ring/pinion combo from ALMOST ANY 8" toyota. i've put the mkii supra diff in my pickup...i've put a mkiii diff in my pickup with an 8" axle...and i've switched ring and pinion from supras to the pickup with no problems. the only mods i had to do was shave like 1/4 of an inch..if that from the rear axles and also rub down the pinion sleeve a little. otherwise it took no longer then an hour to do all that if you have the right equipment.

there are MANY aftermarket support for the toyota 8" diff. i'm sure there are quite of few places to custom make you one also.

[Andre]

just get a ring/pinion combo from ALMOST ANY 8" toyota. i've put the mkii supra diff in my pickup...i've put a mkiii diff in my pickup with an 8" axle...and i've switched ring and pinion from supras to the pickup with no problems. the only mods i had to do was shave like 1/4 of an inch..if that from the rear axles and also rub down the pinion sleeve a little. otherwise it took no longer then an hour to do all that if you have the right equipment.

there are MANY aftermarket support for the toyota 8" diff. i'm sure there are quite of few places to custom make you one also.

Thats correct


Butt its difficult to find an combo in 8 inch lower then 3.73

Most of the 8 inch toyota make are higer then 3.73 and iff you are running the 6 speed you must go as low as posiible

[str8_6]

i'm almost certain theres a 3.5X something that the 4 runner uses. i might be mistaken for the front axle 7.5" though. i'll check on that.