Buy 2005 Ford F-150 4.2L Triton V6 M/T 4WD XLT Standard Cab Pickup Fleetside Coil Spring Insulator Suspension, Springs - OEM Ford Part # NK4Z5586A (NK4Z-5586-A)

Insulator. Spring.
Coil Spring Insulator. AntiSQUEAK - SP. Bearing. Bracket. Cap. Coil. Pad. Retainer. Seat. Spacer.

Coil Spring Insulator

Fits E-Transit

E-Transit; Upper.
Suspension Coil Spring - Repair or Replace
Your coil springs are not especially prone to failure, but if they have been cut, clamped, or heated to have the vehicle lowered, your 2005 Ford F-150 might benefit from replacing the strut springs. Excessive rust can make the springs more prone to failure. Contact your local Ford service department to have your suspension system evaluated.