Roger,
Thank you for the pinion angle explanation & I need to follow through on that. But, the prob seems to happen as soon as it's in gear, not rolling. The motor bogs down.
Recently replaced the tranny(th350) crossmember lifting the trans approx 2.5". The only thing that I can think of that changed was the shifter linkage & it does slip out if gear now. However, could the linkage be causing the "bog"? By not allowing the tranny to lock in gear?
What do you think?