Said It Here

Can you install suspension parts listed as incompatible?

Parts websites often flag components like comfort springs as incompatible with a sport trim based on the car's registration. This leaves drivers who want more ground clearance—or who accidentally ordered the wrong part number—unsure if the parts are physically compatible or safe to install.

Overview
People affected2 accounts across 2 forums
Workarounds found3 items attempted
Community agreement4 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Asking mechanics on forums to confirm physical fitment despite catalog warnings
    Did this help you?
  2. 2
    Planning to get new wheels and an alignment after installation to correct geometry
    Did this help you?
  3. 3
    Returning the incorrect part despite lost paperwork to order the exact match.
    Did this help you?

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/AskMechanics1 person · October 2026

“I own a 2014 Mercedes B200 Diesel Sport (W246) and want to raise the front end for ground clearance.”source ↗

“I've found that comfort suspension front springs, like the KYB RA1185, are listed as incompatible by most parts sites based on my reg. Can anyone confirm if it's safe to switch to comfort springs despite this, and if there are any issues to watch out for by doing this?”source ↗

Guilty-Report-3971 · r/AskMechanics · 1 upvotes

“what I'm trying to say is my car is a sport version with non comfort springs, does anyone know if they are compatible??”source ↗

Guilty-Report-3971 · r/AskMechanics · 1 upvotes
r/MechanicAdvice1 person · November 2026

“I ordered a leaf spring for my 05 dodge ram 1500 5.7L, the part number I have is an 120AE, the part number I ordered is a 121AF.”source ↗

“How bad would it be to use that part as I have it and may not be able to return it as I lost the shipment paperwork?”source ↗

skeedlz · r/MechanicAdvice · 1 upvotes

“i did not install it. i will try to send it back and order the correct one. not sure how I messed it up”source ↗

skeedlz · r/MechanicAdvice · 1 upvotes

Where this came up

People with this problem also raised