A440f transmission failure. Have A343f..Swap? (1 Viewer)

[FJBroBri]

So, as the title states, I have a '91 LC80 with a non functioning transmission. I have a parts vehicle, a '97 that supposedly had a functioning trans when the engine failed. I want to put the '97 A343f in the '91, possible? And, since it's gonna be out, i wonder if it's a good idea to rebuild it anyway...?? The donor rig for the A343f has almost 350k miles..

 

[slow95z]

Won't work

 

[rocrunr]

Why not rebuild the 440 if your willing to rebuild the 343?

 

[FJBroBri]

I thought the 343 was a better unit, as it was used in later models... but I am open to rebuilding the 440

 

[FJBroBri]

Can you recommend a rebuild kit? Supplier?

 

[bhmmapping]

I would just Find a used 440 and swap it in.

 

[bloc]

Not sure of rated torque handling but the A343f is MUCH smaller, physically.

Just because it is later model doesn't necessarily mean it is better.. could be they were trying to save weight or improve efficiency. A343F is the same transmission put into 110hp 1KZTE diesel 4runners (AkA Hilux Surf), after all.


Beside all of that.. the A343F is designed for electronic control.. A440F not.

 

[FJBroBri]

I would just Find a used 440 and swap it in.

Why not rebuild?

 

[FJBroBri]

Won't work[/QUOTE

could it work if i use the '97 ecu?

 

[Landseer]

Even if the A343f would bolt up to a 3F you'd still need to use a compushift to make it work. Far more trouble than its worth, rebuild the 440 or find a used one.

 

[FJBroBri]

okie dokie.....searching. Any recommendations on rebuild kits? I have technician friends that can do the job.

 

[dirtyboots]

Did a fair amount of research on 440 rebuild options...there are a couple of really detailed 440 threads here and in the end I don't recall anyone having success rebuilding a trans. Doesn't mean you couldn't be the first success thread, or there aren't places that can. For the time, cost, and especially hassle, I found that sourcing a good used 440 was the most reasonable option.

 

[robar1100]

try this link
1991 TOYOTA LAND CRUISER 4.0L L6 Rebuild Kit | RockAuto

 

[Tools R Us]

What is wrong with the 440?