New Bumper Jeep Pulling Left after Install

[turnerb6]

Hello, I am new to Jeep Ownership and have a question I just installed an after market heavy bumper. But now that the job is finished the Jeep pulls to the left. Any ideas as to why this is happening and how to fix it?

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[Jeepney Johnny]

Does "pulls to the left" happen when pushing on the brake pedal or the gas pedal?

I can't imagine how a bumper can affect steering, but with less than 3K miles on the odometer of my new Wrangler, I had to align the front and center the steering wheel. I hadn't done any hard wheeling or run into anything that would've cock-eyed the front-end, but the alignment was simple DIY.

Since then, I haven't had to do any alignment adjustments through five tire rotations (every 5K miles).