VIGOR FR1504E Rear Suspension Enhancement System Kit Instruction Manual

June 1, 2024
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VIGOR FR1504E Rear Suspension Enhancement System Kit

Specifications:

  • Product: Rear Suspension Enhancement System Kit
  • Compatibility: 2015-2020 Ford F-150 4WD (Rear Only)
  • Contents:
    • 1 x Weldment LH/RH Painted
    • 2 x Rubber Spacer 4od x 1 thk w/ AH Bushing
    • 2 x Hollow Rubber Spring
    • 2 x HCS M10 x 40 x 1.5 GR 8.8 Z
    • 2 x HCS M10 x 65 x 1.5 GR 8.8 Z
    • 2 x M10 Split Lock Washer GR 8.8 Z
    • 2 x HCS M10 x 30 x 1.5 GR 8.8 Z
    • 1 x DR1525H2 / DDR05 Weldment Painted
    • 4 x Saddle Clamp 3-1/2
    • 4 x Washer Flat 3/8 x 1 GR 2 Z
    • 4 x Nylock Locknut 3/8 UNC GR 5 Z

Installation Instructions

  1. Raise the vehicle allowing the axle to hang freely.
  2. Remove existing bump stop using a 13 mm socket.
  3. Assemble air rubber spring and bracket as shown in the diagram.
  4. Mount assembly using existing holes & supplied fasteners
  5. Clamp bottom support onto axle using provided fasteners. Torque U-Bolt nuts to 30-35 ft. lb.
  6. Lower the vehicle.

Notes:
Check that brake line or brake cable locations do not interfere with the air spring. If necessary, use rubber washer #2 and bolt #5 to achieve the desired ride height. Do not exceed the vehicle manufacturer’s recommended axle weight rating. Check your vehicle’s owner’s manual and do not exceed the maximum load listed for your vehicle.

Clearance Instructions:
Rear SES Kits for Pick-Ups and Vans should have a 1/2 to 1-1/2 gap between the rubber spring and contact point when empty. A partial load, or vehicle accessories will reduce or eliminate the gap. Front SES kits are usually in full contact. Medium and Heavy-Duty Trucks, Trailers and Motorhomes will be in constant contact, and have no gap.

FAQ :

  • Q: Can I install this suspension enhancement system on a different vehicle model?
    A: This kit is specifically designed for use with the 2015-2020 Ford F-150 4WD rear suspension only. It is recommended to use it only on compatible vehicles for optimal performance and safety.

  • Q: What should I do if I encounter issues during installation?
    A: If you face any difficulties or have questions during installation, please refer to the installation manual provided with the kit. You can also contact our customer support for assistance.

Installation Manual

  • Thank you for purchasing the 7X 1248 Kit! Please kindly be advised to read the instructions carefully before installing the suspension enhancement system kit.
  • Please take safety precautions accordingly during installation.

Rear Suspension Enhancement System Kits for 2015-2020 Ford F-150 4WD (Rear Only)

HARDWARE AND TOOLS LISTS

Ref Part Qty
1 WELDMENT LH/RH PAINTED 1L-1R
2 RUBBER SPACER 4″od x 1″ thk w/ AH BUSHING 2
3 HOLLOW RUBBER SPRING 2
4 HCS M10 x 40 x 1.5 GR 8.8 Z 2
5 HCS M10 x 65 x 1.5 GR 8.8 Z 2
6 M10 SPLIT LOCK WASHER GR 8.8 Z 2
7 HCS M10 x 30 x 1.5 GR 8.8 Z 2
8 DR1525H2 / DDR05 WELDMENT PAINTED 2
9 SADDLE CLAMP 3-1/2″ 2
10 WASHER FLAT 3/8 x 1 GR 2 Z 4
11 NYLOCK LOCKNUT 3/8 UNC GR 5 Z 4

INSTALLATION INSTRUCTIONS

  • Raise vehicle allowing the axle to hang freely.
  • Remove existing bumpstop using 13 mm socket.
  • Assemble air rubber spring and bracket as shown in the adjacent diagram.
  • Mount assembly using existing holes & supplied fasteners.
  • Clamp bottom support onto axle using fasteners provided. Torque U-Bolt nuts to 30-35 ft. lb.
  • Lower vehicle.
  • NOTES
    • Check that brake line or brake cable locations do not interfere with air spring. If necessary, use rubber washer #2 and bolt #5 to achieve desired ride height.
    • Do not exceed vehicle manufacturer’s recommended axle weight rating. Check your vehicle’s owner’s manual and do not exceed the maximum load listed for your vehicle.

CLEARANCE INSTRUCTIONS

  • Rear SES Kits for Pick-Ups and Vans should have a 1/2″ to 1-1/2″ gap between the rubber spring and contact point when empty.
  • A partial load, or vehicle accessories will reduce or eliminate the gap.
  • Front SES kits are usually in full contact.
  • Medium and Heavy-Duty Trucks, Trailers and Motorhomes will be in constant contact, and have no gap.

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