SPACE AGE STAR FEBRUARY 2015 EDITOR’S NOTES - RUSSELL HEIM I hope everyone is having a great new year. 1990 Chevrolets. 1990 cars are now eligible for Last year at this time our region was only an AACA judging. I wrote the 1990 article one idea. We started a thread on the AACA General morning in December. When I brought in the Discussion Forum asking if there was interest in mail that afternoon, the new issue of Hemmings starting a non-geographic region devoted to Classic Car arrived with an editorial and article 1955 and later Chevrolets. We received enough about 1990 cars. This topic is popular. of a response to submit the region application. Once the AACA approved the region, our mem- As always, please submit photos and stories bership increased from the first 15 members to about your cars and trucks. It doesn’t matter if around 50 now. Not bad for a region that’s just the car is a show winner or a project, we’d like starting. to feature it in the newsletter. Feel free to submit stories about anything else Chevrolet This month we’ll focus on the X-frame and related that interests you. Restoration tips and station wagons. One of our newest members, memorabilia collecting are always interesting Ken Michaels owns the 1955 Bel Air sedan topics. featured on the cover. We included his car story in this issue. Also featured is an article about Collecting Literature
appears to be designed for salesmen to use. In most years these are arranged like the Dealer Album, but they’re smaller and less lavishly illustrated. The 1961 Finger Tip Facts is an exception. It’s arranged like a dictionary. These were reference guides for salesmen and contain a wealth of information for current owners and restorers. Finger Tip Facts turn up a little more often than Dealer Albums and are somewhat expensive, but they’re worth it.
Powerglide illustration page from the 1960 Finger Tip Facts Book. ANATOMY OF THE X-FRAME CHASSIS BY RUSSELL HEIM From 1958 through 1964, Chevrolet used an trol arms contributes to smoother, more level X-shaped chassis on their full-size cars. We cornering. Standard on all models except refer the these as “X-Frame Chevys” today. six-cylinder Bel Air, Biscayne, and Biscayne Chevrolet used “Safety-Girder X-Built Frame” Fleetmaster. and “X-Built Chassis” to describe the frame and chassis construction. - High over- all steering ratio of 28:1 and low-friction Ball-Race steering gear afford light, easy Chevrolet claimed that this design was ad- steering under all driving conditions. vanced for the day and that it contributed to the roominess, comfort and safety of their cars. - Rubber- cush- Detractors and safety experts claimed this ioned jointed steering column helps mini- frame design lacked the side protection offered mize road shock and permits more by a perimeter frame. comfortable steering wheel position.
Chevrolet defended the X-frame by explaining - Direct-acting per- that it needed no bowed-out side members. The manently-sealed shock absorbers are diago- heavy-gauge steel double-box section body sills nally mounted for more effective resistance had the strength needed to resist side impacts. to roll and sway. The body sills, or rocker panels were located lower and farther outward than perimeter frame - Two-section side members, putting the protective strength propeller shaft with rubber-cushioned center where it was needed most, at the body’s widest bearing transmits a smooth power flow with point. Box section cross beams, integrated with a minimum of vibration. This special design the body floor, provide lateral support for the permit’s a low driveline tunnel for greater body sills. interior roominess.
Here are some features of the X-frame’s anato- - Reverse-flow type my: muffler heavily zinc-coated for long life dis- charges exhaust gases with minimum sound - Exceptionally rigid box section de- and power-robbing back pressure. sign keeps body and suspension properly aligned and contributes to outstanding rid- - Controls rear axle ing comfort. movement leaving coil springs free to cush- ion the ride. Built-in leveling action helps keep car level during stopping or starting. Spherical joint suspension features low-fric- tion non-metallic joint liners that are quiet- - Per- er, automatically adjust for wear, and mit a smoother, quieter, more vibration-free contribute to easier turning. Built-in anti- ride and longer tire life. Front wheels roll dive action helps keep car level during sud- free and easy on new, more durable tapered den stops. roller bearings.