JOR 7-Inch Lift Kit on a 2005 Astro: A Real-World Shakedown Guide

We get asked about the lift more than anything else on the van. "Seven inches on a 2WD Astro? On stock-style alloys? Does it even drive straight?" Short answer: yes, but only because we did the boring supporting work around it. This is the long version — the parts list, the order we'd do it in next time, and the stuff nobody tells you until you're three hours deep with a torque wrench and a cold coffee.

Why the JOR kit, and why 7 inches

We wanted clearance for 31-inch BFGoodrich KO2s without resorting to body mounts that crack at the welds, and we wanted to keep the factory 5-spoke alloys (painted white — sue us). The JOR 7" kit was the only Astro-specific option that addressed the front torsion bars, the rear shackles, and the steering geometry as a system instead of a stack of generic spacers.

Installed cost on our 2005 Chevy Astro RWD, parts only, was around $2,400 CAD before tax. Labour we did ourselves in the driveway in Chilliwack over about three weekends. Add a hoist if you have access to one — we didn't, and our backs paid the bill.

The order we wish we'd done it in

1. Front-end refresh first. Moog inner and outer tie rods, idler arm, pitman arm, upper and lower ball joints. If any of that is tired, the lift will magnify it and you'll chase a wandering steering wheel forever. We did this *after* the lift the first time. Mistake. 2. Eaton Detroit Truetrac LSD in the rear. While the driveshaft is out for the lift anyway, drop the diff cover and put the Truetrac in. Ours was installed by Enrico's Differential Solutions in Mission BC (33149 London Ave) for about $1,575 CAD including the unit. Worth every dollar — a 2WD van with an open diff on wet gravel is a one-wheel-peeling exercise in frustration. 3. Lift kit itself. Torsion bar keys, extended brake lines, drop brackets for the differential and idler, longer rear shackles, longer rear shocks. Take your time on the front — the torsion bar reindex is the single most important step for keeping the geometry sane. 4. Alignment, then drive it 200 km, then align it again. Everything settles. Plan for two alignments.

The Truetrac detail people miss

The Truetrac is a helical-gear LSD, not a clutch-pack unit. That means no chatter, no friction modifier in the gear oil, and no maintenance cycle. On loose surfaces it transfers torque to the wheel with grip the instant the other wheel starts to slip. The first time we hit a wet root-laced climb on Harrison FSR after the install, the van just *went* where it used to scrabble. That's the moment 2WD overlanding stops being a compromise.

Moog front end — boring, critical

We did inner tie rods (Moog ES3493T), outer tie rods (Moog ES3458), idler arm (Moog K6531), pitman arm (Moog K6536), and both upper ball joints (Moog K6292). About $520 CAD in parts. Without this refresh the lifted geometry will eat your steering feel within a few hundred kilometres of gravel. With it, the van tracks straight at 100 km/h on the highway and doesn't fight you in washboard.

What we got wrong

• We didn't extend the front brake lines on the first pass. Full droop on a side-hill pulled the line tight enough to weep at the banjo. Replaced with stainless braided lines, problem gone.
• We reused the rear shocks for two trips. They were toast within a month. Buy the longer shocks before the kit goes in, not after.
• We trusted the first alignment. It drifted within a week as the new bushings settled. Second alignment is non-negotiable.

What the lift actually changed

• Ground clearance under the diff went from a nervous 7 inches to a confident 11.
• Departure angle is finally usable — we can climb out of the kind of washout that used to scrape the rear bumper.
• Highway ride is firmer but not punishing. The KO2s are louder than the lift.
• Fuel economy dropped about 1.5 L/100km. Worth it.

Parts list (for the people who scroll to the bottom)

• JOR 7" Astro lift kit (front torsion keys, drop brackets, rear shackles, brake lines)
• Bilstein 5100 rear shocks, extended length
• Eaton Detroit Truetrac LSD, GM 10-bolt 8.5"
• Moog steering and suspension components (see above)
• Stainless braided front brake lines
• Two front-end alignments

What's next

We're partway through the rear swing-out bumper for the spare tire and a lockbox, and the JOR install gave us the clearance to mount a full-size spare without dragging it on every approach angle. We'll write that up once it's welded and painted.

If you're considering the same kit on a 2WD Astro and want to compare notes, the contact page has our email. We answer every message — usually from a campsite, sometimes a few days late.

Body Lift — In the Shop

With the front clip stripped, you can see how much extra real estate the 3" body lift opens up between the frame and the cab. That's the space that lets the 33" KO2s tuck in without trimming the fenders to ribbons.