A343F - All they all created equal?

[Cruiserhead05]

I'm currently in the planning stages of a tranny build up for my 1997 LX450.

Can anyone confirm the capatibility of the A343F's?

I didn't think there were any differences, but just want to make sure I dont have an issue with putting, for example, a '95 LC80 transmission into my '97 Lexus.

Thanks

 

[Kernal]

There have been previous threads on some improvements done to the valve bodies from 95-97 to decrease slip/shudder in reverse and noise when shifting out of reverse IIRC. Wait for the parts experts to chime in.

Here's a link to a discussion on the A343:

https://forum.ih8mud.com/80-series-tech/89842-transmission-lifetime.html#post1084186

 

[OGBeno]

I would personally get a reman A343F and install the Extreme Valve body and Torque converter to it. That would make the 343 a monster. It also costs a crap ton of money.

Good luck Brandon.

 

[Uncle Grumpy]

Isn't the A343F behind the 2UZ?

 

[OGBeno]

Isn't the A343F behind the 2UZ?

Yes, but it is controlled differently. The early A343F is controlled by a cable to the valve body. The one behind the 2UZ deletes the cable control.

 

[Kernal]

Are Toyota reman'd A343's still available? Smart shopper price?

 

[Cruiserhead05]

Thanks guys.

My main concern was the variance between 95-97. I have a performance valve body in my transmission currently, but lookinng to build up a 96 tranny and swap it in my truck, to reduce downtime.

A reman'd stock unit doesn't really interest me, as there is a shop here that can fully rebuild a high mileage one and make it handle more power.

 

[Cruiserhead05]

IPT would be the shop doing the build up

Toyota Lexus and Scion | High Performance Automatic Transmissions | Racing Transmission

 

[OGBeno]

Are Toyota reman'd A343's still available? Smart shopper price?

1 left in the country.

List: $2379.14

MUD: $1750.00 +$1000 CORE CHARGE that would be returned when I received the core back to me.

...and I already know who is going to get it....



[J/K]

 

[1303]

Maybe a dumb question. Which is better, the A442F or the A343F?

 

[Uncle Grumpy]

A442F and I just happen to have one for sale.

Search and you'll find lots of threads discussing this. To summarize both are adequate for the FZ's, with the A343F being much smaller.

 

[Cruiserhead05]

Maybe a dumb question. Which is better, the A442F or the A343F?

....here we go!

 

[Impreza]

Buy used one from part out. There's a surplus of these. You shouldnt have to pay more than $500 plus shipping.

 

[Cruiserhead05]

Buy used one from part out. There's a surplus of these. You shouldnt have to pay more than $500 plus shipping.

I know where to get one, that wasn't the question. I was just hoping to confirm the capability of a 96 LC transmission into a 97 LX. I'll be building the 96 while driving the current truck and then swapping transmission to reduce downtime

 

[Ebag333]

96 and 97 should have identical transmissions.

 

[iptman]

Are you having IPT (no affiliation) rebuild it or are you getting the rebuild kit and doing it yourself? I just started the tear down on my spare a343f tonight but haven't decided on where to go to get parts.

Patrick

 

[ybhc]

Maybe a dumb question. Which is better, the A442F or the A343F?

Nobody seems to actually know rated maximum torque figures for either of them, and even then its still 'rated.' They both are capable of handling the ~375 ft-lb of torque from a supercharged 1fz.

The A442 looks cooler and has solenoid failure issues.

So the 442 wins.

 

[86tuning]

What's inside a turbo supra?

 

[landtank]

there were several changes in the valve body through the years as well as to the clutch packs. This was going on right up to the end of production in 97.

So a near end production 97 would be the most current design. I posted up here years ago with the serial break downs of the changes.

If you plan on reworking the valve body than just get one from a 97 as the only changes that year were in the valve body.

 

[80BajaBound]

I have the wholesale automatics set up Beno had mentioned. Behind a sc'd 1fz, it's "the cats meow"!
I'm not sure if Beno can help with Rodney's set up (torque converter and valve body) but I know a company who can... West coast cruisers.... No affiliation other than a happy customer.