7th Darkness

iTrader: (15)

So I got my 3.90 in today with the install kit and talked to my mechanic about installation.... he said that you have to have a new spacer to install the gears right? Is this true, or not, and if so where do I get a new one?

-Motive 3.90 Gears w/ Ratech Deluxe Install Kit
-98 Trans Am A4

Z28/2002

iTrader: (27)

If the car had 2.73s or 3.23s then yes you need a ring gear spacer. I know that Speed Inc sells them

BIG_MIKE2005

iTrader: (116)

Yep, since your car is a auto that had one of the stock gears listed above.

7th Darkness

iTrader: (15)

Ahh damn that puts a halt on the install, ordered a spacer should be in thursday. Thanks.

7th Darkness

iTrader: (15)

Ok so I don't need the spacer as it seems. Since the 3.23's have a 3 series carrier and I ordered a 3 series gear... no need for a spacer. At least thats what I was told by thunderracing when I tried to order one.

427TWINTURBO

he is correct- they just make the ring gear width wider where it bolts to the carrier
( what the width of the spacer would be)

7th Darkness

iTrader: (15)

Yeah got them installed yesterday... oh and how is it sweet! No noise what so ever, mechanic did a awesome job!

7th Darkness

iTrader: (15)

Heres a pic...