I was changing my lower control arm on my 07 Accord and noticed the sway bar link is bad. I'm thinking about changing the sway bar link this weekend but it was so hard to put the old sway bar link back in even though they were extremely loose already. Is it normal or do I have to change something else now?
Did you have both front wheels in the air?
Because the anti-roll bar is connected at both ends, it helps to remove the end-link nuts on both sides, refit the end-links without fully tightening the nuts. Only fit the nuts when both end-links are slotted in happy places.
It helps to remove both wheels so there is less load on the anti-roll bar. Make sure the anti-roll bar is centred before you begin fitting the end-links, sometimes they end up in a bind and it makes fitting difficult.
Don't fight it to refit, you should not need to leverage or force it in.
One other note: some service manuals say to do the final torque-ing of certain suspension nuts/bolts when the vehicle is on the ground. (i.e. make everything snug, and only tighten once the wheels are on and car is on the ground). This might be true for end-links but it is more common for wishbone through-bolts Check for your vehicle specific information.
