I bought an '82 short bed a couple weeks ago. Previous owner said it's a 383 stroker with 3.73 gears. I don't want to change either characteristics, but I want to be able to take advantage of them and be able to run on the highway at a relatively low rpm. What transmission should I look at? Some have said a 4l80e, but the current setup is not electronic. Is there a non-electric version? Pardon my ignorance. Transmissions have always confused me.