torque converter lock switch
 

was wonderin what wire u splice into for lock up on 48re? im just runnin a straight switch, i also pulled plug off trans and it had transfluid inside of plug, dunno how, no leaks anywhere

What year is your truck...color change by years.

If you look at your plug(inside) it will have numbers stamped on it. The number 7 wire is what you want to T-tap into.

From the T-tap run a wire into your cab and solder in a 33 ohm resistor. Hook it to a SPST switch and ground the other pole of the switch under your steering column. The resistor will keep you from throwing a CEL.

In sum...T-tap into #7 wire, run wire into cab w/33 ohm resistor, attach to a SPST switch, and ground the switch to the screws under the steering column.:rocking:

this works great by the way been on mine for a few weeks helps some on fuel milage and stops constant down shifting...... i wouldn lock it in the low gears unless you got a built trans :rocking:

thanks, got it hooked up, works fine, just tryin to get use to it, gonna try it at the strip soon