Last year my muncie died and I had A th350 rebuilt and we put it in my 78 gmc truck. The problem is that when I put it in drive it shifts from 1st right into 3rd. When I am almost stopped it downshifts into 1st. NO 2nd! I can however up and down shift through all three gears fine with my B&M shifter. 1-2 shifts ok too if I leave it in 2. I have put a new B&M modulator on it and no change.I want to get the governor kit but not sure if that will work either. can someone please help with some good advice?
Thank you,
JIM