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Read the tech article on a 1962 Buick wagon project car featuring aftermarket air bag suspension, brought to you by the experts at Custom Rodder Magazine.

1962 Buick Air Wagon Project Car - Suspended Animation

Part 2: Project AirWagon Gets 'Bags, Brakes, and a Spiffy Underbelly
From the May, 2009 issue of Custom Rodder
All contributors: Bret Voelkel
1962 Buick Invicta Wagon Front Left Side View
A Buick wagon on a road course?... 
   
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1962 Buick Invicta Wagon Front Left Side View
A Buick wagon on a road course? You bet! The AirWagon not only looks great, it also drives, handles, and stops better than ever thanks to air springs, disc brakes, and other choice components.
1962 Buick Invicta Wagon Suspension View
This is where everyone starts:... 
   
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1962 Buick Invicta Wagon Suspension View
This is where everyone starts: decades worth of wear, tear, grease, and grunge. As you can see, a ShockWave unit was already fitted to the stock suspension. It was such a no-brainer that it was in there before we could even grab a photo. Now all we have to do is tear it apart, clean it, replace the bushings and balljoints, and install the disc brakes. Easy? Somewhat. Quick? Well...
1962 Buick Invicta Wagon Brake View
Here's another preview of... 
   
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1962 Buick Invicta Wagon Brake View
Here's another preview of the cleaning marathon ahead. This is an area where you can save serious time and money, provided the stock stuff works and you're not worried about how the bottom of the car looks. We opted to plow ahead with the cleaning, rebuilding, and upgrading.
0503Cr Wagon 04 Z
This is where planning and... 
   
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0503Cr Wagon 04 Z
This is where planning and experience saved time. We knew we were going through the entire car, so we blew it all apart in order to get to everything. When you do it this way, you have to keep close track of how things come apart and where they are stored. Getting things back together months later can be tricky, so organize and label everything, and take reference photos.
1962 Buick Invicta Wagon New Front Brake Assembly View
Now this is a brake system!... 
   
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1962 Buick Invicta Wagon New Front Brake Assembly View
Now this is a brake system! Stainless Steel Brakes sent us components to create a system for the big Buick. The 13-inch rotors and four-piston calipers haul this boat down quite nicely. We saved the finned drum brakes to sell at the swap meet because hot-rod guys pay real money for them. What you don't see are the hours of sandblasting and painting before reassembly.
1962 Buick Invicta Wagon New Rear Brake Assembly View
The rear brakes also have... 
   
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1962 Buick Invicta Wagon New Rear Brake Assembly View
The rear brakes also have 13-inch rotors and four-piston calipers, plus a parking brake. SSBC makes bolt-on kits for many popular applications; the Buick was not one of those, but we easily adapted existing parts to make it work. You can also see some of the stainless exhaust from Kanter. Sharp-eyed readers will see we are not using the stock muffler, which was originally located between the axle and gas tank. That's where we put the fuel pump and filters.
1962 Buick Invicta Wagon Under Carriage View Exhaust Headpipe
Speaking of the exhaust, the... 
   
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1962 Buick Invicta Wagon Under Carriage View Exhaust Headpipe
Speaking of the exhaust, the most troublesome point on a GM X-frame car is where the headpipe crosses under the frame. We spent extra time massaging a close fit to gain extra ground clearance. You can also see how we detailed the undercarriage of our driver. It's clean, it's functional, but it is not polished. You have to decide how far you want to go. I'm willing to do show-quality work, but I find it tough to get much cleaning done from my lawn chair, which is exactly where I intend to be when I get to a show!
1962 Buick Invicta Wagon Under Carriage View Exhaust
Here's another view of how... 
   
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1962 Buick Invicta Wagon Under Carriage View Exhaust
Here's another view of how tight the exhaust is to the frame. We were sure to leave clearance for engine movement. We finished the suspension parts with nothing more than elbow grease and some cast-iron paint. It sounds easy, but the result is proportional to the amount of cleaning and prep effort. It wouldn't have taken much more time to paint these parts the body color if we'd wanted to. Resto shops charge the same hourly rate for this as they do to make your body straight, or you can do it for pennies in your own garage. Best of all, it's easy to maintain, and I can drive 500 miles in the rain without feeling guilty about a few water spots.
1962 Buick Invicta Wagon Under Carriage View Pulley Radiator Alternator
The combination of the flat-black... 
   
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1962 Buick Invicta Wagon Under Carriage View Pulley Radiator Alternator
The combination of the flat-black frame, cast-colored suspension, and body-colored drivetrain creates a very functional, OEM look, and the Powermaster alternator, March pulleys, and Be Cool aluminum radiator provide a nice contrast. While glossy paint and chrome look fun in pictures, it's kind of like the difference between looking at a Playboy centerfold and a picture of your cheerleader girlfriend--which can you relate to?
1962 Buick Invicta Wagon Under Carriage View
The rest of the undercarriage... 
   
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1962 Buick Invicta Wagon Under Carriage View
The rest of the undercarriage carries the same theme. We used scuff pads to give the stainless Kanter exhaust a brushed look. All of the battery cables, fluid lines, and air lines were neatly routed and securely fastened. I know from experience that time spent on thoughtful line and cable installation will pay off the first time you don't have to repair something on the road.
0503Cr Wagon 11 Z
You didn't think we'd get... 
   
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0503Cr Wagon 11 Z
You didn't think we'd get by without a little gratuitous self promotion, did you? This is the rear CoolRide system for the Buick. It's a simple bolt-in setup that allows the wagon to sit right on the OEM bumpstops while still riding and handling great.
1962 Buick Invicta Wagon Wheel View
Billet Specialties Vintec... 
   
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1962 Buick Invicta Wagon Wheel View
Billet Specialties Vintec wheels finish off the chassis in style. We used 18x8-inch wheels all around with P255/45R18 Nitto 555 tires. The ride and traction are great. And the handling? Just ask anyone who attended our Street Challenge last September. Steve Grissom drove this car with four passengers around Putnam Park Road Course in Indianapolis, and he lapped my '01 Mustang GT (which is no slouch). I'm sure you'll hear more about the Street Challenge and the handling of the wagon and other air suspension vehicles in future magazine articles.
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