About 6 months ago i did a complete tune-up and brake job on my truck. The pads still had a bit of life left in them and the rotors were fine so i didn't have them cut or replaced. I put new pads all around.
I had problems with the left front drivers side locking up in the past so i bought a new caliper for that side and replaced it. It seemed to be working decently up until maybe a month ago then it started pulling slightly. I can let the steering wheel go and apply the brakes pretty hard and it doesnt pull all that much to the left.
If i brake hard, the drivers front will lock up. Yesterday coming home from work i came about two feet from rear-ending someone else. Had it been raining, i'd probably be looking for a new truck right now. I don't know if it makes a difference but i did not slam on the brakes. I was breaking already and the truck slowed down significantly in front of me and i just pushed them down further.
A few years ago, the previous owner had to change the passenger side caliper because it kept getting stuck.
What would be some things to check? Should i try and put a new caliper on the drivers side? The passenger side? Brake lines? Master Cylinder?