when did they change the 700r4s

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Apr 23, 2006 | 03:10 PM

88_Bandit

Thread Starter

Junior Member

Joined: Dec 2005

Posts: 39

Likes: 0

From: NE

Car: 88 Trans am

Engine: high comp vette engine.

Transmission: 700r4

Axle/Gears: 308

when did they change the 700r4s

i have a 88 t\a and it has a plug sensor for the speedometer and the tranny i have has a cable sensor/ the guy told me the tranny came out of a 91 iroc wouldent it have a plug like mine.

Apr 23, 2006 | 04:04 PM

Apeiron

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Joined: Jan 2000

Posts: 20,981

Likes: 11

From: Mercedes Norte, Heredia, Costa Rica

Car: 1984 Z28 Hardtop

Engine: 383 Carb

Transmission: 4L60

Axle/Gears: 3.54 Dana 44

Swap the sensor our of your old one into the new one.

Apr 23, 2006 | 05:56 PM

iroc22

Supreme Member

Joined: Jan 2001

Posts: 4,415

Likes: 2

From: Surrey, BC

They changed to electronic in 90, but the external cases are exactly the same. So just put the cable speedo drive in place of the electronic plug one.

Apr 23, 2006 | 05:57 PM

Apeiron

Moderator

Joined: Jan 2000

Posts: 20,981

Likes: 11

From: Mercedes Norte, Heredia, Costa Rica

Car: 1984 Z28 Hardtop

Engine: 383 Carb

Transmission: 4L60

Axle/Gears: 3.54 Dana 44

Quote:

Originally Posted by iroc22

They changed to electronic in 90

For the Camaro. The Firebird went electronic in 86.

Apr 23, 2006 | 06:25 PM

antoine

Senior Member

Joined: Mar 2003

Posts: 851

Likes: 3

From: vacaville,ca

Car: 1988 camaro z28,1997 camaro lt1

Engine: 355 afr 195 heads,tpis big mouth

Transmission: 700r-4 built by me 3-4 z pack

Axle/Gears: 3.42

you will still have to change the vss senser on the output shaft looks like a metal speedo gear.

Apr 25, 2006 | 11:33 PM

Kevin91Z

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iTrader: (1)

Joined: Jul 1999

Posts: 10,950

Likes: 26

From: Orange, SoCal

Car: 1990 Pontiac Trans Am

Engine: 355 TPI siamesed runners

Transmission: Tremec T56

Axle/Gears: 12-Bolt 3.73

The drive gear on the tailshaft is the exact same plastic gear for cable and electronic speedos. The metal gear you are thinking of is a reluctor wheel used in 4th gens.