Front end jerking

[Zerek]

So I have a 2003 GMC Sierra 1500 and I just recently have replaced all the front end components such as ball joints, upper control, arms, inner and outer tie, rods, etc. And a new master cylinder. Ever since then when I hit a bump or press the brakes, the truck will jerk to the left. It has never done this before. Any ideas?

[richard wysong]

Welcome to the forum! Rack and pinion or Ackerman steering? Pulling when hitting the brakes may be a bad brake hose or caliper. It's possible 1 of the brake hoses got twisted remounting a caliper also. Where it started after you did the work I would double check EVERYTHING in the front end. Did you have it aligned?

[Zerek]

6 hours ago, richard wysong said:

Welcome to the forum! Rack and pinion or Ackerman steering? Pulling when hitting the brakes may be a bad brake hose or caliper. It's possible 1 of the brake hoses got twisted remounting a caliper also. Where it started after you did the work I would double check EVERYTHING in the front end. Did you have it aligned?

It is rack and pinion, but I have not had an alignment yet but it doesn’t jerk the whole time I I’m on the brakes, I will be slowing down then it will jerk then straighten back out

[xranger90]

Good time to have it aligned and the brake lines fully inspected.

[POSslt]

Zerek, did you solve the problem? Mine just started doing the same thing today and I'm looking for a place to start.