Yeah about that. Best why I found to do both at the same time. Have an engine lift? two stout jack stand to catch and hold the car if something goes wrong. Two good floor jacks one on each side with jack stands. raise front wheels off ground a foot or more. somewhere about there. and support with jack stands floor jacks to raise or lower car as needed. Hook up engine and trans so tail stock is at a downward angle. May have to adjust a few time as you have to lift tail stock to clear core support. let tail stock down when behind k frame. ready one of the jacks to raise the tail stock as engine is being lowered. remember as weight on the front it may go down. use 3rd jack stand or 2nd floor jack on k frame. blocking under tires would also help I would keep engine lift on until ready to lower. When I did mine. It was a short block,no heads intake or acc. less weight.My son jack the trany up as I lowered the motor. Be safe and careful.