I have a 94 Jimmy, shift to OD and it starts to roll but no real acceleration or at least not how it should be. Feather gas to get it up to speed and it will eventually shift. Do the same through 2nd, when you hit the right speed for 3rd shifts and takes off and runs great in 3rd and 4th. Manually shift to 1, takes off like normal, manual shift to 2nd 3rd and 4th no problems. Reverse is great. Any ideas?????

Looking at potential trans swap. My question is if I get a trans from a vehicle that is ODB2 will the trans still work in mine since it’s OBD1? thanks