Suspension
Suspension content — coilover installs, alignment setup, and handling upgrades.
8
Builds
47
Knowledge
Popular Questions
Can I reuse the old springs with new strut cartridges?What if the strut-to-knuckle bolts are seized?How difficult is this job for a DIYer?Can I use silicone sealant instead of weatherstrip adhesive?What were the most critical problems found on the test drive?How long does a replacement door seal last?What if new weatherstrip still leaks at the corners?What wheel/tire sizes can this modification accommodate?Can these issues be fixed cheaply or will it cost a lot?How much extra clearance will custom fender wells give me?
Builds
From cuts to custom fender wells on my Mustang Pt 6
2012 Mustang GT Strut Swap | Unexpected Issues!
My 65 Mustang Test Drive Exposed Major Issues
Project Front Loader: Pushed to the breaking point!
From cuts to custom fender wells on my Mustang Pt 4
Everything I've Done to My 65 Mustang
F150 Door Seal Leaking? Watch This
Mandatory Suspension Seat installed on Cub Cadet Z2 54
Vehicles
Knowledge
Can I reuse the old springs with new strut cartridges?What if the strut-to-knuckle bolts are seized?How difficult is this job for a DIYer?Can I use silicone sealant instead of weatherstrip adhesive?What were the most critical problems found on the test drive?How long does a replacement door seal last?What if new weatherstrip still leaks at the corners?What wheel/tire sizes can this modification accommodate?Can these issues be fixed cheaply or will it cost a lot?How much extra clearance will custom fender wells give me?How do I know if the leak is caused by the seal or door alignment?What materials and thickness should I use for the tubs?How do I prevent rust where I cut and weld?What safety precautions are important?How do I set up the suspension for my weight?How much wheel/tire clearance should I leave when shaping the fender well?How do I know the timing marks are aligned correctly?How much wheel/tire clearance gain can I expect?How do I determine the correct driveshaft length?How much extra tire/wheel clearance can I expect?Will cutting the inner fender affect structural integrity?Will I need to drill new holes in the mower deck/base?Do I need to remove the door panel to replace the weatherstrip?Do I need to disconnect any wiring when removing the old seat?Will this change how the suspension or alignment behaves?Is welding on the driveshaft safe?Will this modification affect vehicle legality or safety?Will cutting the fender wells affect structural integrity?Do I need a welder or can I use rivets?Is it safe to drive the Mustang until repairs are done?Do classic cars like a '65 Mustang need special diagnostic tools?Will this Mandatory Suspension Seat fit my Cub Cadet Z2 54 without modifications?Are there any special torque specs for the seat bolts?Will modifying the inner fender affect vehicle safety or inspection?Do I need to weld the tubs in or can I use rivets?Is a spring compressor required?How should I prioritize repairs after the test drive?How much clearance should I allow for larger wheels/tires?Can I replicate these modifications as a DIYer?What engine and drivetrain are in the car?How do I ensure the bucket brackets are aligned properly?How can I reduce warping when welding loader components?How did I determine the rack had a structural flaw?How do I ensure I’m screwing into a structural member?How do I know if my front-end components are 'pushed to the breaking point'?Can I replace control arms and tie rods at home without special tools?How much will repairs cost?
Parts (50)
| Mandatory Suspension Seat | Mandatory |
| Seat mounting adapter / seat rails | |
| Mounting hardware kit (bolts, nuts, washers) | |
| Lower control arm (pair) | MOOG (typical aftermarket) |
| Outer tie rod ends (pair) | ACDelco / aftermarket (typical) |
| Front strut assembly (pair) | KYB / Monroe (typical) |
| Wheel bearing/hub assembly (front) | Timken / SKF (typical) |
| Front brake rotors (pair) | Centric / Raybestos (typical) |
| Front brake pads (set) | Hawk / EBC / OEM (typical) |
| Sway bar end links (pair) | Moog / Dorman (typical) |
| Front strut assemblies (left & right) | KYB (example OEM-style replacement) |
| Upper strut mount kit (pair) | MOOG (or similar) |
| Strut-to-knuckle bolts & hardware kit | OEM/aftermarket hardware kit |
| Sway bar endlinks (pair) | MOOG (or similar) |
| Penetrating oil (PB Blaster/CRC) | PB Blaster |
| Wheel alignment (shop service) | |
| Seam sealer | |
| MIG welding wire | |
| Primer (self-etch or epoxy) | |
| 18 gauge mild steel sheet (or equivalent sheetmetal) | |
| Pop rivets / rivet nuts | |
| Wheel tub / inner fender panel (replacement or prefabricated kit option) | |
| Shielding gas (MIG mix) | |
| Body filler (Bondo) / finishing materials | |
| Topcoat / bedliner / underbody coating | |
| Rust inhibitor / etch primer (optional) | |
| Door weatherstrip / door seal (full door) | Motorcraft (OEM) / aftermarket |
| 3M Weatherstrip and Gasket Adhesive (spray or brush) | 3M |
| Door panel / trim clip kit | |
| Isopropyl alcohol and shop rags | |
| Body filler (small tub) | |
| MIG weld wire (flux core/alloy appropriate for mild steel) | |
| Grinding / flap discs (pack) | |
| Mild steel sheet (approx. 18ga) | |
| Aftermarket fender well liners / splash shield (trim-to-fit) | |
| Pop rivets (assortment) | |
| Automotive seam sealer (tube) | |
| Primer / rattle-can (epoxy or etch primer) | |
| Underbody coating / rustproof spray | |
| Carburetor rebuild kit | |
| Mechanical fuel pump | |
| Spark plug set (8) | |
| Distributor cap & rotor | |
| Ignition wires (set) | |
| Fuel filter | |
| Brake shoes & hardware (rear drum) | |
| Front tie rod ends (pair) | |
| Shock absorbers (front or pair) | |
| Muffler | |
| Battery (lead-acid) |
Tools (44)
| Torque wrench | |
| Floor jack | |
| Jack stands | |
| Socket set and ratchet | |
| Combination wrench set | |
| Measuring tape and marker | |
| Safety gloves and eye protection | |
| Breaker bar | |
| Jack and jack stands | |
| MIG welder | |
| Clamps (sheet metal clamps / C-clamps) | |
| Impact wrench (air or electric) | |
| Ball joint separator / pickle fork | |
| Hammer / pry bar | |
| Angle grinder with cutoff wheel and flap disc | |
| Electric or air drill (with hole saws / spot weld cutter) | |
| Metal snips / aviation shears | |
| Metal hammer and dolly set | |
| Measuring tools (tape, straightedge, scribe) | |
| Rivet gun / rivet nut tool (optional) | |
| Ratchet and socket set | |
| Heat gun (optional) | |
| Trim removal tool set | |
| Phillips and flathead screwdrivers | |
| Utility knife / scissors | |
| Panel clip pliers (optional) | |
| Angle grinder | |
| Hammer and dolly set | |
| Drill and spot weld cutter | |
| Cutoff wheel / abrasive wheel | |
| Reciprocating saw / Sawzall | |
| C-clamps / locking pliers | |
| Marker / measuring tape / templates | |
| Impact wrench / breaker bar | |
| Ratchet set & metric sockets | |
| Spring compressor (coil spring compressor) | Generic |
| Floor jack and jack stands | |
| Multimeter | |
| Basic mechanic's tool set (sockets, wrenches) | |
| Compression tester | |
| Vacuum gauge | |
| Brake bleeding kit | |
| Fuel pressure gauge / hand pump | |
| Drill with drill bits |