I did one on a Duster, reverse VB, ground the detent so it’s flat from original neutral to second, pull into first (drive spot) pull down to second, pull toward you and down for third. Worked slick as a whistle. Really just smack the lever down for second. I still have the detent piece so could show pictures. At finish line push up to first or neutral, both freewheel. As long as you’re pushing down it won’t go into reverse. I would lay my palm on top of lever lever, except for third, not in front. Majority grab it with a reversed fist, a no no