I swapped my rearend from 2.73 to 3.23. Which parts will i need exactly to match my speedometer. Drive gear ? Driven gear ? Vehicle Speed sensor ? Which colors of gears ?? My tires are 245/50-16

Thanks a lot !!

 

you need to replace the drive and driven gears. i dont have the chart handy, so i cant tell you the colors, i got them here years ago



your current sender is fine.

here
http://www.transmissioncenter.net/sp...n_______va.htm


looks like 18 tooth drivegear(blue) 45 toothdriven (light blue)

 

Mine had the red drive gear from the factory, so i used the dark gray 44T driven gear, to go from 2.73 to 3.23. (16 in crosslace)

 

Now, i bought the 44 tooth driven gear but it doesn´t fit.. I can´t understand, how can you use it ?? thx

 

GM used 15/40 or 17/45 with 3.23 gears / 700-R4 / 245/50R16.

The sticky at the top will give you different information.

As far as I know, the VSS gears only go up to 44 tooth.

 

From the 92firebird GM service manual:

P245/50ZR16 with 2.73 axle ratio, use BLUE 38 teeth driven gear and RED 17 teeth drive gear.

P245/50ZR16 with 3.23 axle ratio, use DARK GREY 44 teeth driven gear and RED 17 teeth drive gear.

If it doesn't go in, something is wrong or done wrong (the concave part faces the VSS).

 

Perhaps, my car has another vss than your 92´f-body ?! My driven gear is red and the drive gear is red, too. Stock with the 2.73 rearend..

 

colour varies; always go by tooth count.

 

That is possible, I only dealt with 91-92 camaro/firebird VSS sensors.
They look like this http://www.rockauto.com/catalog/moreinfo.php?pk=343809

 

Oh no... it´s true. My vss doesn´t look like yours..

It´s the better way to go just with new gears or with this sensor from the page ?