Apex Chassis KIT140-YesFlip 1-Ton Complete Steering Kit — 1.5" Polished 7075-T6 Aluminum | High-Steer Flip Geometry | 2007–2018 Jeep Wrangler JK / JKU | High-Steer Knuckles Required | 3.5–6"+ Lift

You flipped your JK knuckles. The steering kit has to match the geometry.

A high-steer knuckle conversion on a JK or JKU changes the geometry of the entire front steering track. Moving the drag link mounting point above the knuckle eliminates the bump steer and steering vagueness that standard geometry introduces at aggressive lift heights — but only if the steering linkage is built from the ground up to work with that flipped position.

The Apex Chassis KIT140-YesFlip is the polished aluminum complete solution for JK and JKU builds running high-steer knuckle conversions. 1.5" solid 7075-T6 aircraft-grade aluminum tie rod and drag link, over-knuckle flip geometry, 1-ton Ninja Joints, integrated hex double-adjuster, and a mirror finish. The choice when the build standard applies underneath as much as it does on top — and the geometry has to be right.

Why 3.5" minimum lift — no exceptions: When the drag link is flipped above the knuckle it sits higher on the axle. At less than 3.5" of lift the drag link doesn't have enough vertical clearance and contacts the underside of the frame rail when the suspension compresses. This is a hard physical limitation — not a conservative buffer. Do not order this kit for any build running less than 3.5" of lift.

KIT140-YesFlip vs KIT130-YesFlip — which one: Same JK/JKU flip geometry. The KIT140-YesFlip is 1.5" solid 7075-T6 polished aluminum at 25.6 lbs — lightweight, mirror finish, natural flex memory, the right call for trail, highway, and show builds. The KIT130-YesFlip is solid high-strength steel — maximum direct impact resistance for rock crawling where the linkage takes direct hits against boulders. If your JK goes hard rock crawling and the linkage contacts rocks — steel. If it doesn't — polished aluminum.

✅ This kit fits — all JK/JKU trims with high-steer conversion installed

All trims confirmed: Sport, Sahara, and Rubicon all fit with high-steer conversion installed.

❌ This kit does NOT fit — read before ordering

2018 model year — critical: 2018 produced both JK and JL Wranglers. This kit fits 2018 JK and JKU only — NOT the 2018 JL or JLU. The JL uses completely different steering geometry. Confirm your 2018 is a JK/JKU body style before ordering.

⚠️ High-steer conversion required — no exceptions: Installing this flip kit on OEM or standard knuckles without a high-steer conversion will produce incorrect drag link angle and unsafe steering geometry. If you have standard knuckles — order KIT140-NoFlip.

⚠️ Wheel clearance — hard requirement: Factory JK 17" wheels run approximately 6.25" backspacing — the inner barrel will contact the 1-ton Ninja Joint housings at full steering lock. You need aftermarket wheels at 4.75" or less backspacing, or quality wheel spacers. Text (469) 407-7538 with your wheel specs and we'll confirm clearance before you order.

⚠️ Knuckle compatibility verification: Confirm your high-steer knuckle brand and model is compatible with this kit's flip taper geometry before ordering. Some high-steer systems come pre-machined for an over-knuckle flip taper — others require drilling the drag link mount to accept the taper sleeve. Verify with your knuckle manufacturer before installation. Text us your knuckle brand and we'll confirm before we ship.

Before You Buy — Questions We Get Asked

Q: What's the difference between KIT140-YesFlip and KIT140-NoFlip?

Same JK/JKU platform, same 1.5" solid 7075-T6 polished aluminum construction, same 1-ton Ninja Joints and double-adjuster. The NoFlip mounts under the knuckle for standard geometry without a high-steer conversion — for OEM or mild aftermarket knuckles at any lift height. The YesFlip mounts over the knuckle for high-steer conversions at 3.5"+ lift. Installing the wrong geometry version for your knuckle setup produces unsafe drag link angles. Confirm your knuckle configuration before ordering.

Q: What's the difference between KIT140-YesFlip and KIT130-YesFlip?

Same JK/JKU high-steer flip geometry, same 3.5" minimum lift requirement. The KIT140-YesFlip is 1.5" solid 7075-T6 polished aluminum at 25.6 lbs — lightweight, mirror finish, natural flex memory, the right call for trail, highway, and show builds. The KIT130-YesFlip is solid high-strength steel — maximum direct impact resistance for dedicated rock crawling where the linkage takes direct hits against boulders. If your JK goes hard rock crawling and the bars contact rocks — steel. If it doesn't — polished aluminum.

Q: Which high-steer knuckle brands are compatible?

Dynatrac, RockJock, Synergy, and equivalent high-steer knuckle systems that move the drag link mounting point above the knuckle. Text (469) 407-7538 with your specific knuckle brand, model, and lift height and we'll confirm compatibility before your order ships.

Q: How hard is this install and what will I need?

Advanced difficulty — not a standard intermediate install. High-steer flip geometry requires understanding of how the drag link interfaces with the over-knuckle position. Professional installation and alignment are not optional. Verify your lift height is a true 3.5" or more before installing. Confirm your high-steer knuckle compatibility before ordering. Full front-end alignment immediately after is mandatory. Caster correction is frequently required at aggressive lift heights with high-steer conversions — verify post-installation.

The Obsidian Take

The KIT140-YesFlip is for the JK and JKU owner who committed to a high-steer conversion and needs the steering linkage built from the ground up to work with that geometry — not adapted from a standard position. The 1.5" solid 7075-T6 construction at 25.6 lbs delivers 1-ton Ninja Joint strength at the lightest weight in the Apex JK flip lineup. Natural flex memory absorbs harsh trail vibration and springs back to tracking profile. The ProLock system locks alignment against washboard vibration and trail loads. The integrated double-adjuster cuts alignment shop labor without disconnecting joints. The raw mirror-polished finish reflects the standard of the build every time someone gets underneath.

This kit is not for builds under 3.5" of lift — frame contact under compression is a hard physical limitation with no exceptions. It is not for standard knuckle builds — if you haven't done a high-steer conversion, order KIT140-NoFlip. It is not for 2018 JL or JLU owners — see the KIT125 series. It is not for dedicated rock crawlers who will take direct boulder impacts against the linkage — KIT130-YesFlip in solid steel is the correct tool for that application. Factory JK 17" wheels will not clear the Ninja Joint housings — verify your wheel backspacing is 4.75" or less before ordering. Text (469) 407-7538 with your year, knuckle brand, lift height, and wheel specs and we'll verify flip kit geometry compatibility before we ship.

Product information is compiled from manufacturer-provided data. Obsidian Forged Auto Supply is not responsible for manufacturer-driven specification updates, metadata changes, or accuracy discrepancies in the foundational data sheets.

2007–2018 Jeep Wrangler JK / JKU. All trims. High-steer knuckle conversion required. 3.5"+ lift — no exceptions. 17"+ wheels at 4.75" max backspacing. Standard knuckle builds — see KIT140-NoFlip.