I have a 98 1500 4wd and i had an 01 46re placed into mine. They had to swap the electrical connections to make it work but all went fine because they changed some stuff slightly apparantly on how it hooks up. No problems for months. But now i Just had this tranny rebuilt (well, he fixed what was broken and worn, not a complete rebuild), and he asked what year the truck was and i told him a 98 not remembering that the tranny is technically an 01. So now i cant get it to shift really.. like itll ride in 1st, then i gotta let off gas and wait and itll sometimes shift to second. Then slowly in a minute might go to third, then overdrive and TCC is a breeze and no sweat. Is there a possiblility there is a different setup in the valve body with check ***** that they switched from 98 to 01 and he put one in or took one out when he opened it up? or is this my governor pressure sensors/solenoids that are re-breaking back in? i drove it quite a bit yesterday. Didn't seem to change anything. Fluid level seems to be right, put about 5 1/2 quarts in, maybe about 6. Thanks in advance

 

Governor stuff is different from 98 to 00... (or 01, as in your case.) pinouts on connectors are the same, but, I think the connectors themselves are different. (I should probably check into that....) According to theory though, the 98 parts won't mount correctly on the newer valve body, and you get strange issues....... What did you change to make it hook up to your truck?