My vacuum modulators are on the right side of the trannies [facing front of car] but that's not why I responded to this thread.

I know you are anxious to get to the task of solving your problem, but I strongly recommend that IF you jack up the car rather than driving it up on one or more very sturdy ramp support(s)... when jacking I recommend you always have at least two supports under the car before you go under yourself... and this usually means you jack it up, put a sturdy stand under it, and then you lower the jack but keep it supporting ~50% of the car's weight with the stand supporting the remainder. Then individually grab the jack and the stand and give each a good shake. And after that grab with both hands or put your foot on a bumper and shake to be certain the car is steady!
Best regards,
Sam... yes I'm " MrSafety2@Verizon.Net " !!