help with my transmission

[1984-monte-carlo-ss]

If it's the orig trans for the the car then it's the 350c trans ( 3 speed with a lockup that was equipped on the 84ss ). Toggle switch is likely to control the lockup if the 'puter was pulled.

yeaa thats exactly wat the previous owner did...rip out the computer, by wat does a lock-up torque converter do?

 

[rustyroger]

A lock up converter does what it says on the box, it locks up to give a solid drive to the driveshaft eliminating converter slippage thus improving gas mileage.
My Cutlass wagon had a separate switch for some reason, I rigged up a warning light to remind me when it was engaged, if you leave it on all the time you get weird shifting and slowing down at a junction can be disconcerting, that's why the computer is programmed to switch it in and out when appropriate.