Welcome to the Nostalgic Motor Cars Technical Library. For nearly 50 years, my only full-time job has been the service and preservation of 1963-1985 Avantis. These articles are compiled from my personal experience and original Studebaker factory blueprints to help you maintain the safety, value, and authenticity of your car.
The "Squeeze Test": Authenticating the 1963–1983 Avanti "Safety Dash"
Is your Avanti dash pad a genuine factory original or a hardened aftermarket reproduction? Drawing on 47 years of experience and original Studebaker blueprints, Dan Booth reveals the unknown facts about the Avanti "Safety Pad." Learn the "squeeze and twist" test to verify original flexibility and the "lacquer thinner" trick to identify inferior black-vinyl rebuilds.
Discover why the often-misunderstood "steps" at the windshield are an engineered necessity for proper glass installation, and why a factory-correct NOS pad can increase your car’s resale value by over $5,000. Whether you are prepping for a concours show or a restoration, this guide is the definitive resource for identifying authentic 1963–1983 interior components.
Solving the Avanti Dead Battery Mystery: 1981–1985 Electrical Guide
Is your 1981–1985 Avanti battery constantly dead after sitting for a week? Specialist Dan Booth of Nostalgic Motor Cars reveals a hidden factory oversight involving the volt gauge and the "always-on" clock circuit.
The Lost "III": Uncovering the Mystery of Avanti Part #1700340
For decades, rumors circulated through the Avanti community about a planned "Roman Numeral III" emblem designed to mark the transition to the 1970 model year. In this historical deep-dive, Dan Booth finally solves the mystery using original factory blueprints discovered in the Nostalgic Motor Cars archives.
The Unknown Clever Thinking of Altman's Avanti Motors
Are your Avanti’s power window switches constantly popping out of the door panels? You aren't alone. This rare factory option, found on 1963–1973 models, featured a mounting system prone to loosening as the door panel cardboard aged. In this technical guide, Dan Booth reveals a "clever" factory-authorized secret for locking switches into place using simple rods—or even nails—to keep the NOS #1351343 clips tensioned.
Dry and Quiet: The Specialist’s Guide to Avanti B-Pillar "Dog Leg" Weather Seals
The Studebaker Avanti has a long-standing reputation for interior and trunk leaks, but as specialist Dan Booth reveals, a properly sealed Avanti should never leak. In this technical deep-dive, learn the secrets behind the B-pillar—or "Dog Leg"—weather seals (Part #1350856/857) that protect your interior and spare tire well from moisture.
Emergency Cooling & Preservation: The Avanti Hood Hardware Guide
While crossing the Arizona desert in a 110-degree heatwave, Dan Booth discovered that even functioning factory electric fans couldn't always keep a late-model Avanti cool. In this article, Dan shares the ingenious "gas station" fix he used to create an emergency heat vent using nothing more than a wrench and a roll of toilet paper.
Fixing the "Flop": How to Rebuild Avanti Standard Front Seat Hinges (1963–1983)
Does your Avanti’s front seat back rock or "flop" when you drive? Many owners don't realize that the plastic sleeves (bushings) inside the seat hinges are high-wear items. When they deteriorate, hinge holes become elongated, leading to permanent damage to the expensive chrome hardware and fiberglass shells.
The article I wrote, “Avanti Service Centers,” Follow Up
How does one become the world's leading authority on 1963–1985 Avantis? In this follow-up to "Avanti Service Centers," Dan Booth pulls back the curtain on his unique relationship with the Altman-era factory. Discover the "Dan Booth correspondence course by phone"—a direct technical hotline to the four key men at Avanti Motors who built and managed these cars.
Hidden Danger: Preventing Catastrophic Avanti Door Glass Failure
Is your Avanti door glass loose, or does it rattle when you close the door? Behind that sleek fiberglass exterior lies a thin, .050" steel channel known as the "Shotgun" assembly that is prone to severe rust after 40+ years of moisture exposure. If this channel or the accompanying cushion strips fail, your rare door glass can separate and crash into the bottom of the door, resulting in an expensive, shattered mess.
Avanti Handling Secrets: The Evolution of Front and Rear Sway Bars
Looking to sharpen your Avanti’s handling and eliminate body roll? In this technical guide, Dan Booth explores the history of factory stabilizer bars from 1963 through 1985. Discover why the "bigger is better" philosophy of the 1983 Anniversary Edition led to unexpected rattles and how Avanti Motors engineered a 7/8" solution that provides the perfect balance of performance and comfort.
The Most Overlooked Avanti Interior Part: Cowl Kick Pad Moldings
Are your Avanti's kick panels looking ragged or rusty? Specialist Dan Booth identifies one of the most frequently ignored trim pieces on 1963–1985 models: the cowl kick pad molding (Part #1347528x61). Originally made of painted steel, these vertical retainers are magnets for moisture and foot-traffic damage
Identifying and Fixing the "Mystery" Gas Smell in Your 1963–1985 Avanti
Do you notice a strong gasoline odor inside your Avanti, especially after a full fill-up? This isn't just an annoyance—it’s a critical safety issue. In this comprehensive guide, Dan Booth explores the history of the Avanti fuel system and the specific structural failures that plague 1977–1985 models.
Permanent Solution: Eliminating Leaky Avanti Sunroofs with an NOS Roof Skin
Are you tired of the "decades of neglect" and water damage caused by a leaking factory sunroof or moonroof? For many 1971–1985 Avantis, the original steel housings have rusted or separated from the fiberglass, making traditional re-bonding nearly impossible.
In this masterclass restoration guide, Dan Booth details the definitive way to solve the problem for good: deleting the opening entirely by installing a New Original Stock (NOS) Roof Skin #1350250.
Heart-Stopping Failure: Is Your Avanti Accelerator Linkage Safe?
Imagine pulling into a busy intersection and suddenly having zero accelerator response. For one Avanti owner, this nightmare became a reality when a 50-year-old ball stud simply popped out of its socket. In this critical safety guide, Dan Booth explains why the original 1963–1980 accelerator linkage rods are a "ticking time bomb" for drivers.