TeraFlex Alpine IR Long Upper Control Arm Kit (3"-6" Lift) for 2007-2018 Jeep Wrangler JK
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Fits the same truck
Features
- Upper IR long arms: Front upper or rear upper Alpine IR long arm kit.
- IR bushings: TeraFlex's Independent Rotation bushings rotate freely and damp noise and vibration.
- 42mm x 4mm DOM: Upper arm tube spec from TeraFlex.
- Adjustable for 3"-6": Set caster and pinion up front, or pinion and anti-squat at the rear.
- Bracket kit required: Works with the JK Alpine Long Arm Bracket Kit (1957000), sold separately.
- Upgrade by position: Do the front or rear uppers now and the rest later.
Description & Fitment
Alpine IR Long Control Arm Kits for the upper positions on a 2007-2018 Jeep Wrangler JK: choose the front upper kit (1315570) or the rear upper kit (1315590). TeraFlex makes the upper arms from 42mm x 4mm wall DOM tube and fits its IR (Independent Rotation) bushings for unrestricted flex. The arms adjust for 3"-6" lifts and must be used with TeraFlex's JK Alpine Long Arm Bracket Kit (1957000), not included, which requires cutting and welding.
Fitment & Compatibility
| Years | Model | Bed | Notes |
|---|---|---|---|
| 2007-2018 | Wrangler | JK; 3"-6" lift |
Check your Jeep: Wrangler JK or JK Unlimited, 2007-2018; 3"-6" lift; Alpine Long Arm Bracket Kit 1957000.
Not for: JL or JT models; factory bracket installs.
About 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
Will they bolt to my factory brackets?
No. TeraFlex requires its JK Alpine Long Arm Bracket Kit (1957000, not included), installed by cutting and welding.
Where are the lower IR long arms?
Front lower 1315580 and rear lower 1315600.
Is an alignment required?
Yes, once the arm lengths are set.
What warranty does TeraFlex give?
TeraFlex covers its control arms, IR bushings, coil springs, bump stops and track bars for life against defects in materials and workmanship. Non-IR control arm and track bar bushings carry 1 year and finishes 90 days. For a claim, contact us with your order details.
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 right for my Jeep before I order?
Yes. Contact us with your VIN or year, model and trim, plus your current lift, and we'll check it against TeraFlex's fitment information before it ships.
Installation
- Basic mechanics tool set
- Cutting torch or equivalent
- Welder
- Grinder with flapper wheel
Here's the short version. Follow TeraFlex's install sheet (below) for your Jeep's exact steps and torque values.
- With the Jeep low on fuel, lift it, mark and remove the drivelines if you are replacing them, lower the rear axle with a strap around the pinion, and drop the fuel tank after disconnecting the EVAP, electrical and fuel lines (the supply line may be under pressure; cap all open lines, p4).
- Remove all control arms, tuck wiring looms and fuel lines out of the way, cut off the stock control arm brackets without cutting into the frame, and grind the surfaces smooth.
- Clamp the parts tight to the frame and tack weld around them, then weld the rear frame gussets, the rear brackets and the front brackets (indexed to the frame hole and the cross-member's longer bolts); avoid long vertical welds and paint the welds (p7). This kit requires structural welding.
- 2010-2011 models: cut out and reposition the large catalytic converter so the O2 sensor stays reachable and clears the new bracket, then rejoin the pipe with the 2.5" section moved to the front (p10).
- Refit the front shocks and install the long arms with new hardware at the frame brackets and the original hardware at the axle (rear uppers usually in the lower holes, rear lowers bends up and in); torque the cross-member bolts to 90 ft-lbs and the skid plate to 48 ft-lbs (p8).
- Refit the fuel tank (straps 30 ft-lbs) and drivelines on their marks (15 ft-lbs transfer case and rear, 81 ft-lbs front axle), then on the ground torque the track bars and lower and rear upper arms to 125 ft-lbs and the front uppers to 75 ft-lbs.
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Specifications
| Brand | TeraFlex |
|---|---|
| Product Type | Long control arm kit, upper (IR) |
| Lift Range | 3"-6" |
| Tube | 42mm x 4mm wall DOM |
| Bushings | IR (Independent Rotation) |
| Requires | Alpine Long Arm Bracket Kit 1957000 (not included) |
| Variants | 1315570 Front Upper / 1315590 Rear Upper |
| Part number | 1315570 |
| UPC | 843885050490 |
| Part # | Position | UPC |
|---|---|---|
| 1315570 | Front Upper | 843885050490 |
| 1315590 | Rear Upper | 843885050513 |
Warranty, shipping & returns
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Warranty
TeraFlex covers the control arms, IR bushings, coil springs, bump stops, track bars and sway bar parts in these systems for life against defects in materials and workmanship. Alpine control arm and track bar bushings other than IR carry 1 year, and paint and powder coat finishes 90 days (defects only).- 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.
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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.
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Inspect on delivery
A lift system arrives 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.
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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.