Here's a question to ponder your mind. Where is the vehicle speed sensor on an 87 trans am. There are two sensors(plugs) on the transmission other than the shift cable. Is one the sensor? Or is it somewhere else? Anyone care to guess?

 

Its attached to the two wire connector near the rear of the trans.

 

I believe Pontiac switched to electronic VSS earlier than Chevy did, so you should have a round black plastic cylinder (VSS) on the drivers side tailshaft of the tranny with two yellow wires going to it. There'll be a clamp holding it in much like a distributor hold down. The driven gear sits on the shaft coming out of the VSS.

------------------
-Jason M. 1991 Camaro Z28

 

Yep, in the tailshaft.

------------------
1990 IROC 350
Mods: Too busy trying to make it run right to mod it.
Airfoil, Dynomax cat-back, MSD coil, 180 t-stat, Bald Eagle tires,
Hypertech fan switch, Accel 23# injectors, Holley AFPR, ported plenum,
Ported Daytona Yellow stock base, Moroso valve covers, other stuff,
Ruger P95DC, hot wife, new oil filter, thick rubber floormats, no cats.
18.0 @ 85MPH since I'm one big-a$$ MF
"It's better to have and not need than to need and not have."