My 92 Firebird has 2.73 gears, I am swapping to 3.73's with a 3-series posi carrier. Does anyone know what speedo gears I will need? Note this is an electric speedo, but still uses plastic gears in the transmission, which is connected to a gear driven VSS. Is there any other ways to calibrate the speedometer? I'm thinking I'm not the first to do this

------------------
-Joseph
ASE Master Automobile Technician
Scoggin-Dickey Chevrolet

1967 Camaro (Vortec Heads, GM ZZ4 intake manifold, ZZ4 roller camshaft)
1992 Firebird (Weiler Vortec Heads, LT4 Hot Cam, GM ZZ4 Intake, Edelbrock 750, eventually will be Ram-Jet)

 

http://www.slponline.com/view_produc...RTNUMBER=63006

Think I found what I need, but does anyone know if I can get this from GM? TIA

------------------
-Joseph
ASE Master Automobile Technician
Scoggin-Dickey Chevrolet

1967 Camaro (Vortec Heads, GM ZZ4 intake manifold, ZZ4 roller camshaft)
1992 Firebird (Weiler Vortec Heads, LT4 Hot Cam, GM ZZ4 Intake, Edelbrock 750, eventually will be Ram-Jet)

 

No offense, but if you work for Scoggin Dickey couldnt you look it up in their computer?

For a 700R4 automatic trans, its a 15 tooth and a 45 tooth. For a T5, its 7 and 21.

------------------
West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

VSS gears

------------------
If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
Whatever chip I feel like burning,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
-->14.97 @ 94.9 MPH<--

'97 Bonneville SSE

 

I'm sure our parts department is sick of me already, I asked last week and noone seemed to know, I mean they are only parts people they don't work on cars.
Thanks for the responses, I think that was all I needed


------------------
-Joseph
ASE Master Automobile Technician
Scoggin-Dickey Chevrolet

1967 Camaro (Vortec Heads, GM ZZ4 intake manifold, ZZ4 roller camshaft)
1992 Firebird (Weiler Vortec Heads, LT4 Hot Cam, GM ZZ4 Intake, Edelbrock 750, eventually will be Ram-Jet)

 

They cost roughly $15 all together. The parts #'s are: 8642620, 25513052.

The local guys by me know me by name! They are awsome. They love it when i come in with the part #'s and even when i don't they will take the time to go through things with me.

 

yeah that looks like fun ...i wonder how much a tranny shop will charge me to do that?

-brian

------------------
1991 Camaro RS - ultra blue metallic, t-tops
GMPP 350 HO crate engine - TBI, MSD ignition, SLP exhaust
700R4 - 2,400 stall converter, vette servo
10 bolt - coming soon - SLP zexel torsen differential, GM 3.73s
z28boy.fbody.com
z28boy@twcny.rr.com
AIM - "Z28 Boy"

 

Thanks everyone My cost will be $8 for both

------------------
-Joseph
ASE Master Automobile Technician
Scoggin-Dickey Chevrolet

1967 Camaro (Vortec Heads, GM ZZ4 intake manifold, ZZ4 roller camshaft)
1992 Firebird (Weiler Vortec Heads, LT4 Hot Cam, GM ZZ4 Intake, Edelbrock 750, eventually will be Ram-Jet)

 

$8?! I feel as if i was ripped off!!!

I am sure it will be pricey. You have to take off the torque arm, drive shaft, and tail housing. Just swap them when the rear is out.

 

I just rebuilt the transmission, so I will do the speedo gears this afternoon while its still out.
Probably do the rear end gears in a few weeks though.

------------------
-Joseph
ASE Master Automobile Technician
Scoggin-Dickey Chevrolet

1967 Camaro (Vortec Heads, GM ZZ4 intake manifold, ZZ4 roller camshaft)
1992 Firebird (Weiler Vortec Heads, LT4 Hot Cam, GM ZZ4 Intake, Edelbrock 750, eventually will be Ram-Jet)