JOR 5" Lift on a 2WD Astro: Full Spec Breakdown

If you search "Astro van lift kit," almost everything you find assumes you're running an AWD Astro with torsion bars. That's a problem if you're working on a 2WD — the lift components, the spring setup, even the part numbers are different. This post is the full breakdown of the JOR 5" kit on a 2WD Astro, now fully installed: what's in the kit, how it went together, and a costly mistake on front-end parts that almost derailed the front suspension rebuild.

Why 2WD Changes Everything Here

The 2005 Astro came in two drivetrain configurations, and the front suspension architecture differs between them:

• AWD Astro: independent front suspension with torsion bars
• 2WD Astro (this build): independent front suspension with upper and lower control arms and coil springs — no torsion bars

Both are independent front suspension setups — neither uses a solid axle up front. The difference is torsion bars vs. coil springs, and that difference matters for lift components, spring rates, and ride height adjustment hardware. If you're sourcing lift parts, front end components, or reading another build thread, the first question to ask is "is this AWD or 2WD?" A lot of content online doesn't make this distinction, and it'll send you down the wrong path on parts.

What's in the JOR 5" Kit (2WD Spec)

For a 2WD Astro, the JOR 5" lift kit consists of:

• Body lift blocks
• Rear shackles
• Rear shocks (Monroe 58618, sold as a pair, JOR spec)
• Steering extension
• Bumper relocation brackets
• Emergency brake extension
• Front spring spacers
• Front shocks (KYB 565049 MonoMax, x2)
• JOR helper springs (rear)

Install Sequence — Now Complete

All ten components of the JOR 5" kit are installed:

1. Body lift blocks 2. Rear shackles 3. Rear shocks (Monroe 58618, JOR spec) 4. Steering extension 5. Bumper relocation brackets 6. Emergency brake extension 7. Front spring spacers 8. Front shocks (KYB 565049 MonoMax x2) 9. JOR helper springs, rear

The rear-end work went in first — shackles and shocks, since those directly affect ride height and geometry before chasing alignment issues. The front end was the more involved half of the job, partly because of the coil spring/control arm setup, and partly because of a parts sourcing issue on the front-end refresh that's worth its own section.

The Front End Parts Mistake (Save Yourself This Headache)

While lining up the front end refresh to go alongside the lift (new idler arm, pitman arm, tie rods, ball joints — see the companion post on that), I initially had a parts list built around these numbers:

• K6541
• K8726T
• K80470
• ES800086
• EV800088

Every one of these is wrong. They're Moog part numbers for GMT800 platform trucks (Silverado/Sierra era) — not the Astro/Safari. They'll often show up as "compatible" on parts sites because of how cross-reference databases get built, but they do not fit a 2005 Astro 2WD.

The correct numbers, confirmed against the 2005 Astro 2WD specifically:

| Component | Moog Part Number | | --- | --- | | Idler Arm (driver) | K6365T | | Idler Arm (passenger) | K6366T | | Pitman Arm | K6294 | | Outer Tie Rods (x2) | ES2019RLT | | Inner Tie Rods (x2) | ES2020RLT | | Tie Rod Sleeves (x2) | ES2004S | | Upper Ball Joints (x2) | K5208 | | Lower Ball Joints (x2) | K6141 |

If you're ordering through RockAuto or similar, search by the Astro/Safari platform specifically and double-check against these numbers before you hit purchase. The wrong parts will sometimes physically bolt up to adjacent GM components, which is exactly what makes this mistake so easy to make and so frustrating to catch after the fact.

Highway Wander — A Symptom Worth Watching

One thing that showed up after the rear lift components went in: noticeable highway wander. The idler arm is the prime suspect — it's a known wear point on this platform generally, and with the geometry changes from a 5" lift, any slack in the steering linkage gets amplified. This is part of why the front end refresh and the lift install are happening together rather than as separate jobs — there's no point dialing in an alignment on worn steering components, especially after changing ride height this much.

Alignment — Don't Skip This

Any lift of this size is going to throw off your alignment angles, particularly caster. A cam bolt kit is required to get the adjustment range needed post-lift — standard factory hardware won't give you enough adjustment to compensate for a 5" lift's geometry change. Budget for this as part of the lift cost, not as an afterthought. Doing the front end rebuild first, then the lift, then alignment, in that order, means you're not paying for an alignment that gets thrown out again by the next round of suspension work.

Tires and Wheels

With the 5" lift, stock-size tires look disproportionate — there's a lot of empty wheel well. Tires purchased: BFG KO2, LT255/70R16, Load Range E — five total (including spare) from Kal Tire, on 16" wheels. Staying with 16" wheels was deliberate: better tire selection for trail use, more sidewall for articulation and impact absorption, and better ground clearance characteristics than going to a larger wheel with a lower-profile tire.

Is the JOR Kit Worth It for 2WD?

With the full kit installed, the verdict on fitment: it works without drama on a 2WD Astro. None of the ten components required modification or made AWD-specific assumptions — the rear hardware (shackles, shocks, helper springs) is straightforward regardless of drivetrain, and the front coil spring spacers and shocks bolted into the existing independent suspension geometry as expected. The real test now is a season of FSR driving with everything buttoned up and the alignment dialed in. What I can say with certainty: every parts list and forum thread you'll find tends to assume AWD/torsion bar unless stated otherwise, so if you're on a 2WD Astro, treat every part number — lift kit or otherwise — as unverified until you've confirmed it against your specific platform.

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Kit source: JOR AS-2WD5SUPVAN — Astro/Safari 2WD 5" Lift Kit

*This build is documented in real time, including the mistakes. If you're working on a 2WD Astro and hit a wall on parts sourcing, the front end part number table above is confirmed against a 2005 Astro 2WD — feel free to use it.*