tooquick2beslo

Has anyone heard of any GM cars having these gears? Someone on the local board that I am on said that a GTO had these gears. I have personally never heard of them. Anybody else heard of them ?

StealthFormula

iTrader: (35)

Yea, my dad's '06 GTO has 3.46 gears stock.

Urban Legend

iTrader: (5)

I did not know that.

steeltoe

wow i guess Shane was right.

1999Z28

they have the independent rear suspension, not the normal 7.5in rearends like fbodies. that's why they offer different gear ratios.

oct03gto

iTrader: (15)

The differant gear set is because of the size of the diff. The size of the ring gear limits the number of teeth on the ring and pinion. It is a Dana rear.

Revelation Z28

iTrader: (10)

dana 40 right?

oct03gto

iTrader: (15)

Either 35 or 40. I am really not sure just yet. I will find out when I put my 3.91's in.

Firechikn

iTrader: (15)

3.91 + m6 + gto irs =

oct03gto

iTrader: (15)

Not really. I have bought a KAAZ unit, BMR stubs, Harrop cover, 3.91's, and will be instaling while my car is stored for the winter. Once installed, and a good set of adjustable shocks, and Pedders springs are in. This car should be really strong, and hook up well.

Revelation Z28

iTrader: (10)

whats the ring gear size on the GTO diff?

if its 8.0" or bigger than it wont break like said above.