how to improve gu auto gearbox

[shaun100]

Only the "snow" one......Unless its hidden..mines an 03

[june]

i fitted the heavy duty valve body. cost $900 and worth every penny. tow 3 tonne with ease, especially with manual lock-up torque convertor switch. transmission shifts are super crisp,auto temps are low, fuel economy is better. for towing heavy loads I think it is a good mod.

[jgoose]

Hi june where did you get the H D valve body off

[june]

wholesale automatics. check out the link on this first thread

[ripper]

I've been planning to do this resistor upgrade for about two years, and this week I'm finally getting to it.

Does anyone know how many revs you need for the torque converter to safely lock with a 1000k resistor? I think with the original resistor you need about 1800 revs.

Thanks for the GQ resistor location photos Boggy and the wiring diagram Chaz.

[patrolman123]

Wholsale autos are the best in the game with 4x4 autos. Lockup kits and valve bodies a relitivly cheap and make a bumch of difference

[ripper]

Finally did this, but I'm confused.

Tried a 2.2k ohm to start with thinking it could be a bit harsh. That didn't seem to be much different, so I unplugged the resistor completely and it's still not harsh on the changes except for when I manually change up under light load. It does seem to automatically hold it in the gears longer sometimes.

The box was reco'd about 20,000 K's ago, and the fluid was recently flushed with genuine Nissan ATF. It didn't slip when I tried to get it to, and often changes gears so smoothly I don't feel it.

Any ideas on why it's not much different?

[bushwacker]

I just unplugged mine today and it doesn't seem harsh really just feels good and firm much quicker through the gears I'm thinking is there any point putting in a resistor?

[fitzyfootlong]

Cheers for the info fellas

[v502]

Great info