Driving off a freeway and put the transmission in neutral on the off ramp, when I tried to go in first gear after I stopped it made a bang sound and was real jerky front to back feeling?

It sounds like one of the CV axles has come apart or the transmission has had an internal issue. Let's raise the front of the car and spin each front wheel while in natural to see if one of them is locked up and makes a strange noise when spinning.

This guide can help:

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

Please upload pictures or videos in your response of any problems so we can see what to help you with.

I've never had any transmission issues before, smooth as silk. I did have a brake caliper warp and could have caused damage to the cv. I was thinking that scenario but I'm very novice when it comes to troubleshooting vehicles, too many variables. I'll try the wheel spin thing tomorrow when stores are open, and I can get a heavy-duty jack.

Yep, we need to start looking at things to see what is going on. Please upload pictures or videos in your response of any problems so we can see what to help you with.