How do you tell whether the tie rod is steering arm to steering arm or from the pitman arm?

You will have alot of play in the steering wheel.

to steer the car in right path

no

Some you do and some you don't. If you can put the pitman arm puller on and remove the pitman arm then leave the gear box alone. If the puller won't fit on it Then remove the gear box.

It's either the alignment is off, or your brakes are grabbing, get it aligned (about $40) and have the brakes checked out.And in the future, don't just go replacing parts, have everything checked out...