quick transmission question

[billy bob]

Can someone tell me, does the L67 run the same auto tranny as the ecotec?

[MikeCuzzy]

Yep all the Auto's in the VT/VX line up are the same, all GM 4L60-E's.

Holden VT Commodore Specifications

There were 3 different gearboxs used for the Commodores the Automatic, the Getrag - 5 speed and the T56 - 6 speed.
These are the auto ratios, cause I'm bored:
First: 3.06
Second: 1.63
Third: 1.00
Fourth: 0.70

[monkeys437]

Different torque converter but thats about it

[billy bob]

Thanks, thats good to know. If I was to supercharge the ecotec the tranny should not have any problems handling the power then.

[acarmody]

No you can still kill it. A factory supercharger didn't make a huge amount of extra power, quite a bit of torque though. A big centrifugal charger (assuming thats what your getting) will make a fair bit more power and torque than a stock L67. In saying that though, the 4L60E has proven to be a resilient little bastard and can last quite a while if cared for properly. Regular oil changes and a nice big external cooler should see a few more years of service. A shift kit wouldn't hurt either, reducing heat by decreasing the band slippage time.

[billy bob]

OK, thought i'd heard if people toasting trannys after bolting on chargers. Food for thought! Thanks