How much wheel/tire clearance gain can I expect?
Documented on the Ford Mustang build
Published February 26, 2026
The clearance gained depends on how much metal you remove and how the new well is formed; typical gains range from a fraction of an inch to several inches depending on the cut and fabrication.
Full Answer
The clearance gained depends on how much metal you remove and how the new well is formed; typical gains range from a fraction of an inch to several inches depending on the cut and fabrication. Measure against intended tire and suspension travel before finalizing cuts.
Documented In This Build
Related Knowledge
What safety precautions are important?Will cutting the fender wells affect structural integrity?Do I need a welder or can I use rivets?How do I prevent warping when welding thin sheet metal?What wheel/tire sizes can this modification accommodate?How much extra tire/wheel clearance can I expect?How difficult is this for someone with limited metalworking experience?How much wheel/tire clearance should I leave when shaping the fender well?
Related Parts
Body filler (small tub)
$15
MIG weld wire (flux core/alloy appropriate for mild steel)
$15
Grinding / flap discs (pack)
$10
Mild steel sheet (approx. 18ga)
$60
Aftermarket fender well liners / splash shield (trim-to-fit)
$80
Pop rivets (assortment)
$10
Automotive seam sealer (tube)
$12
Primer / rattle-can (epoxy or etch primer)
$20
Underbody coating / rustproof spray
$18
Related Tools
Jack and jack stands
Angle grinder
MIG welder
Hammer and dolly set
Drill and spot weld cutter
Cutoff wheel / abrasive wheel
Reciprocating saw / Sawzall
C-clamps / locking pliers
Marker / measuring tape / templates
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