After a full rack replacement: yes, treat it as required. After replacing only the mounting bushings, with the rack itself left in place: it depends on whether the bushing swap actually repositioned the rack — checking is always worth it, and some bushing manufacturers specifically call for an alignment afterward, but a handful of owners report driving fine without adjustment when the rack didn’t shift.
Why Bushing Work Affects Alignment At All
The steering rack’s physical position directly sets the geometry of the tie rods connecting it to each front wheel. Even a small shift in where the rack sits relative to the subframe — informal estimates from repair sources put it around 1mm — changes the tie rod angle enough to change front toe. That’s the whole mechanism: it’s not that bushings themselves need alignment, it’s that anything touching the rack’s mounting position can move the rack slightly, and toe angle is sensitive to that movement. (This is the same rack-to-tie-rod connection covered in What Is Rack and Pinion? — worth a look if the mechanical picture isn’t clear yet.)
Full Rack Replacement: Treat Alignment as Non-Negotiable
Removing and reinstalling the whole rack almost always involves disconnecting the tie rods and repositioning the assembly, which resets its relationship to the wheels. Every source in this research that addressed full rack replacement specifically — forum consensus, shop guidance, and a Tesla service manual entry among them — treated a post-replacement alignment as standard, not optional. Budget for it as part of the job, not an add-on you might skip.
Bushings-Only Replacement: Check First, Don’t Assume Either Way
This is where the answer genuinely splits, and it’s worth being upfront about the split rather than picking a side:
- If the bushing swap left the rack in essentially the same position (a straightforward mount-and-bushing-only job with no tie rod disconnection), some owners report driving normally afterward with no adjustment needed — the wheels were already aligned before the work, and nothing moved them.
- Some bushing manufacturers specifically instruct an alignment after installation anyway, as a precaution against the small positional shift that even a bushing swap can introduce.
- The safest default: get the alignment checked, even if you don’t commit to a full adjustment. A checked alignment that turns out to be within spec costs you an inspection; an unchecked one that’s actually off costs you tire wear.
What Happens If You Skip It
- Uneven tire wear — incorrect toe causes tires to scrub against the road, and this can show up as visible edge wear within a few hundred miles, not months.
- Off-center steering wheel — the wheel no longer sits straight when the car is tracking straight ahead.
- Wandering or unstable handling — the car pulls to one side or requires constant small corrections to stay in its lane, especially noticeable at highway speed.
One thing worth flagging honestly: getting an alignment done doesn’t automatically guarantee a better result — at least one owner reported the car handling worse after an alignment, a reminder that the shop’s execution matters as much as the decision to go. If something feels off after an alignment, that’s worth going back to the same shop about, not just chalking up to “it needed time to settle.”
If You Did the Work Yourself
A rough toe check using the string method or a tape measure can confirm the car is safe to drive to a professional alignment shop — it is not a substitute for one. Use it to catch anything grossly out of spec before you put highway miles on the car, then get a proper four-wheel alignment done at a shop with the right equipment.
Related reading: Full Rack Replacement vs. Bushings-Only Repair: Cost Comparison · Can You Drive With a Bad Steering Rack, and Can You Just Replace the Bushings? · How Do You Know If Your Steering Rack Bushings Are Bad?
