TeraFlex sport st suspension system product photo

TeraFlex 1.5" Sport ST1 Spring Lift System, No Shocks (4-Door) for 2007-2018 Jeep Wrangler JK Unlimited

$706.99
FREE SHIPPINGNo sales tax Only 1 leftIn stock now  Estimated delivery
Verify fitment with your vehicle
GO
Clear
Flash Sale Ends in--:--:--

Free gifts included with your order

Details
Details
  • Guaranteed FitmentTeam-confirmed fit or money back
  • No Sales TaxZero sales tax on every order
  • 30-Day Money-Back GuaranteeReturn it within 30 days of delivery for a refund
Prestige Truck customer support

Questions or a custom quote?

Mon to Fri, 9am to 5pm EST

+1 (470) 823-2453 Email Us

Features

  • 1.5" Street & Trail lift: Entry Sport ST system for the 4-door JK.
  • Springs, bumps, disconnects: Lift coil springs, bump stops and front sway bar quick disconnects.
  • Factory ride kept: Minimal change to factory geometry, highway ride and handling.
  • Progressive front bump stops: Prevent tire contact and shock bottoming, per TeraFlex.
  • Bolt-on install: No cutting or welding; TeraFlex calls for an alignment afterward.
  • Shocks not included: Longer shocks required; TeraFlex recommends Falcon.

Description & Fitment

Made for the 4-door 2007-2018 Jeep Wrangler JK Unlimited, this 1.5" Sport ST1 Spring Lift System is TeraFlex's low-cost route to a lifted stance and bigger tires on a Jeep that commutes all week and goes off-road on weekends. In the box are lift coil springs, bump stops and front sway bar quick disconnects, each matched to 1.5" of lift. Because geometry changes are minimal, the Unlimited keeps its factory road manners, and progressive front bump stops guard against tire rub and shocks bottoming out. Installation is bolt-on without cutting or welding, and longer shocks are required but not included.

Fitment & Compatibility

Jeep
Years Model Bed Notes
2007-2018 Wrangler JK; 4-door only; 1.5" lift

Check your Jeep: 2007-2018 Jeep Wrangler JK Unlimited 4-door; wheels with 4.75" or less backspacing or 1055000 adapters.

Not for: 2-door JK (1211000); TJ or JL models.

About TeraFlex

TERAFLEX.

TeraFlex describes itself as a Jeep company at heart, started and staffed by people who drive them. It designs, engineers and builds suspension systems, shocks, axles and performance parts, with the Wrangler and Gladiator at the center of the range.

The company traces its roots to the 1950s and MEPCO (Military Equipment Parts Company), an early supplier of Jeep parts. TeraFlex Manufacturing followed in 1996 to build heavy-duty suspension for the TJ Wrangler, and today's catalog runs from full lift systems and the Falcon shock line to axles, steering and armor.

Authorized TeraFlex dealer. Prestige Truck is an authorized TeraFlex dealer, so what we sell is new and genuine TeraFlex. In TeraFlex's words, its limited warranty extends "only to the consumer who originally purchased the product," so keep your receipt with your build records.

Frequently Asked Questions

Does it come with shocks?

No. Longer shocks are required; TeraFlex recommends Falcon Performance Shocks and also sells the ST1 with Falcon Series 2.1 shocks.

Will it fit the other JK body style?

No. This is the 4-door version; the 2-door version is 1211000.

Can I keep my stock wheels?

Only with Offset Wheel Adapters (1055000); otherwise use wheels with 4.75" or less backspacing.

What warranty does TeraFlex give?

TeraFlex covers the control arms, coil springs, bump stops, track bars and sway bar parts in its Sport ST systems for life against defects in materials and workmanship, and paint and powder coat finishes for 90 days. Contact us to confirm coverage or start a claim.

How quickly does it ship?

Shipping is free to the lower 48 states, and most orders arrive within 1-5 business days. We email your tracking number as soon as it ships.

Can you confirm it's the right system before I order?

Yes. Contact us with your VIN or year, model, doors and trim, plus your wheels and tires, and we'll check it against TeraFlex's fitment information before it ships.

Installation

Install time 4 hours
TypeBolt-onNo cutting or welding
What's involvedLower each axle to swap in the new springs, drill a 3/8" hole in each front spring pad for the extended bump stops, and add the rear bump stop pads. Torque at ride height and center the steering.
Tools
  • Ratchet - 1/4" and 1/2"
  • 1/4" drive socket set - 10mm
  • 1/2" drive swivel/wobbly sockets - 18mm, 21mm, 3/4"
  • 1/2" drive socket set - 18mm, 21mm, 3/4"
  • 1/2" extension - 12" long
AfterwardAn alignment

Here's the short version. Follow TeraFlex's install sheet (below) for your Jeep's exact steps and torque values.

  1. Front: support the axle, drop the front driveline at the axle (15mm) and the track bar at the axle (21mm), unclip the ABS lines, slide the breather tube clip 3" down the shock tower, then lower the axle, remove the springs and the upper bump stops.
  2. Drill a 3/8" hole in the center of each front spring pad and fit the extended bump stops (cup extension marking to the front), raising the axle with a hydraulic jack to seat them.
  3. Install the TeraFlex springs together with the Speedbump pads (3/8" bolt through the pads, nut below), then fit the front shocks: top nut 20 ft-lbs, bottom bolt 56 ft-lbs (Falcon shocks per their own instructions).
  4. Rear: support the axle, remove the shocks, axle-side track bar bolt, sway bar links, parking brake cable hanger and brake line brackets, then lower the axle and fit the rear springs.
  5. Install the rear lower bump stop pads (extended end forward, 200 in-lbs), cycle the sway bar and bend the brake line and bracket to clear it, and refit the sway bar links at 59 ft-lbs.
  6. Center the steering wheel with the drag link before test driving, refit the wheels, lower the Jeep and torque all remaining suspension and track bar bolts at ride height.

Stuck on a step? Ask our install experts

Specifications

BrandTeraFlex
Part Number1311000
Product TypeSpring lift system
Doors4-door
Lift Height1.5"
IncludesLift coil springs, bump stops, front sway bar quick disconnects
ShocksNot included (longer shocks required)
Wheel Requirement4.75" or less backspacing, or Offset Wheel Adapters 1055000 (not included)
UPC843885043454

Warranty, shipping & returns

  • Warranty

    TeraFlex covers the control arms, coil springs, bump stops, track bars and sway bar parts in its Sport ST systems for life against defects in materials and workmanship, and paint and powder coat finishes for 90 days (defects only). TeraFlex's warranty list names no separate term for coil spring spacers or drop brackets, so contact us if you need that term before ordering.
    • TeraFlex extends its limited warranty only to the consumer who first bought the product, and only on the vehicle the part was first installed on. It does not pass to a later owner.
    • Coverage starts on the purchase date and does not restart if a part is repaired or replaced.
    • For a covered defect, TeraFlex will either repair or replace the product (or the faulty part) free of charge or refund the purchase price, at its discretion, and it pays the freight to send a repaired or replacement part back to you.
    • Not covered: damage from transportation, storage, improper use, skipped instructions or preventive maintenance, modifications, unauthorized repair, normal wear and tear, product finish, improper installation or maintenance, racing or competition, or accidents, abuse and neglect. Improper installation, poor maintenance, racing or competition use, and neglect or abuse void the warranty.
    • Paint and powder coat finishes carry 90 days of defect coverage only, not wear from use.
    • Claims: contact us first. Keep your proof of purchase or original invoice; removing the part from the vehicle and the inbound shipping are the owner's responsibility.

  • Free shipping

    Ships free to the lower 48 states, with no minimum order.
    • Order by 5 PM ET on a business day and it starts processing the same day.
    • Most orders arrive within 1-5 business days.
    • We email your tracking number as soon as it ships.

  • Inspect on delivery

    A lift system can arrive in several boxes. Match every box and hardware pack to the part lists in the TeraFlex instructions before you start, and contact us right away about anything missing or damaged. Check it as soon as it arrives.
    • Look for crushed ends, punctures or tears in the carton.
    • If something looks wrong, take photos of the box and the parts (and if a driver asks you to sign, note the damage on the receipt).
    • Open the box and check the parts against the parts list before you install.
    • Email support@prestigetruck.com right away with your order number, a short note and photos. We send a replacement or a full refund at no cost to you.

  • 30-day returns

    Return it within 30 days of delivery, unused, in the original packaging, with proof of purchase.
    • Email support@prestigetruck.com with your order number. We reply within 1-2 business days with instructions.
    • Damaged, defective or wrong item: we send a prepaid label or arrange a pickup.
    • Changed your mind: you pay return shipping. No restocking fee.
    • Refunds go back to your original payment method within 7 business days of approval. See our returns policy.
Questions about fit or install?Chat with our team, Mon to Fri, 9am to 5pm EST.Ask a question