reinforced k frame - is it worth it

Not a bad idea to reinforce it. I would take it out of the car, mainly to get it really clean and inspect it for cracks. Can't weld it with grease & paint on it. With the engine out, it's pretty easy. I did it with the engine in.

If you decide to do it, the guy who did the welding on mine still has his shop. He's a fantastic welder.

Here's my thread from quite a few years ago when I did it.

K member removal - engine in car