: 2006 sts



K STS
05-17-09, 10:23 PM
Hello All,

I have a 2006 STS 1SE package which comes with the 2.73 gears. I had previously drove a 1SG package with the 3.42 (or 3.23?)

Regardless, the torque felt MUCH different. This is the thing I miss most about not getting the 1SG package. I'd like to swap the gears from a 1SG (I work at a high performance salvage yard,) and put them in my 1SE. We have a tech2 in our service shop as well.

Ive seen the thread titled "4T80E 3.11 to 3.71 swap." I doubt this has any relation to the newer trans' in the 2005+ STS, so I was wondering if anyone else had any information on this swap. I posted this in the STS thread, and no one had any info.

Thanks in advance!

K STS
05-18-09, 02:08 AM
uhhh.. i put this in northstar performance for a reason....

bbshriver
05-18-09, 08:32 AM
I'm assuming the 4T80E is the FWD transmission in the older north star? The new STS is RWD and has a separate differential not part of the transmission as it is in a FWD car.

I don't see why this would be any different than a gear ratio swap in any other vehicle? You'll probably have to recalibrate the speedo/odo but other than that it should just be a gear swap.

Force-1
05-18-09, 09:14 AM
uhhh.. i put this in northstar performance for a reason....

?????

K STS
05-18-09, 03:54 PM
?????

Because thats where the gear swap threads are... and I already asked this question in this forum!