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BTR 4 Speed M72 / M74LE / M85LE / M91LE / M93LE / M95LE / M97LE


Palmentiello

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  • Member For: 8m 2d

Dear Community,

my name is Riccardo and I hope that you can help me out, because nobody in Europe has ever heard of the BTR/ION/DSI transmission.

I bought my childhood dream, a Maserati 3200 GT which has the M72 version installed and that gives me a tremendous headache.
On my first "real" test drive the transmission decided to fail.
The car is not moving forward or backwards.
Since there is nobody who knows anything about the transmission, I took action myself and disassembled it.
Turns out 2 clutch packs are burned and the planetary has gotten a lot of wear, so it can not be reused.
After some months I came across  a used auto transmission, put it into the car, but the same problem still occured.
So I guess the torque converter is broken and has caused the prior damage.

My reasearch about BTR always leads to Australia, but when I try to look something up, I can hardly find anything.
It is not possible for me to find parts on e.g. Ebay or other websites. (Guess they are bind to specific locations)
Have already tried to message some Youtubers and companies, but never received a reply.

This is why I am hoping to find some infos in here.

I´d be happy if someone would tell me a source for parts, alternatives or any which will help me putting a working transmission back into the car, so I can eventually enjoy it.
I´m open to modifications, swaps, conversations to a manual etc.
Any knowledge, hints or tips are highly appreciated !

Lots of greetings from Italy

Riccardo

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  • Member For: 4y 11m 7d

They changed some parts across the 3 models, in particular :

 

The oil pump

The Front band friction

The planetary gears

Valve body

 

Here is website addresses for part list identification

 

https://www.alltranz.com.au/shop/drivetrain/automatic-transmission/BTR_1994-02/

 

https://www.alltranz.com.au/shop/drivetrain/automatic-transmission/BTR-ION-DSI/BTR_BA/

 

https://www.alltranz.com.au/shop/drivetrain/automatic-transmission/BTR-ION-DSI/BTR_BF/

...

Edited by BarraT
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