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.

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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.


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Wiring Diagrams

Detailed 1963 and 1964 Studebaker Avanti wiring diagram.

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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.

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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.

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Are Your Avanti Wheels Safe to Drive?

Are you still driving on the original 5-inch narrow steel wheels or the 1980s factory black mesh aluminum wheels? In this urgent technical report, Dan Booth exposes two major safety hazards that most Avanti owners and mechanics are completely unaware of.

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Prevent a Disaster: The Danger of Improper Avanti Fuel Line Modifications (1974–1985)

Could a "jerry-rigged" fuel repair turn your Avanti into a fire hazard? For owners of 1974–1985 Avanti II models, an improper fuel line modification is more than a mechanical eyesore—it is a recipe for an engine fire. In this urgent safety guide, Dan Booth explains why the common practice of cutting steel lines to add inline filters or rubber hoses is extremely dangerous.

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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.

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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.

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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.

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Creating the "Nostalgic Rake": How to Perfect the Stance of Your 1965–1985 Avanti

Why does the 1963 Studebaker Avanti often look "sleeker" than the later Avanti II models? The secret is in the stance. When Avanti Motors transitioned to the Chevrolet engine in 1965, engineering requirements led them to raise the front of the car, eliminating the aggressive factory "rake" that defined the original design.

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Shedding Light on a Classic: The History of Avanti Dash Illumination (1963–1985)

Why are Avanti gauges notoriously difficult to read at night? The answer lies in the evolution of "gang lighting" and factory design changes over 22 years of production. In this expert guide, Dan Booth explores the four distinct styles of red dash lighting used from the original 1963 Studebaker Avanti through the final 1985 models.

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The Avanti Exhaust Masterclass: Blueprint-Bent Accuracy vs. Muffler Shop Guesswork

Installing an exhaust system on a 1963–1985 Avanti is a notorious challenge, requiring precise clearances around the steering control valve, oil filter, and X-member frame. In this definitive guide, Dan Booth explains why generic muffler shop pipes often fail and why authentic, blueprint-bent components are the only solution for a rattle-free fit.

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Avanti Ignition Secrets: Why Your 60-Year-Old Distributor is Costing You Performance

Is your 1963-1964 Avanti running rough or becoming difficult to start? The original dual-point distributor has served for nearly 60 years, but mechanical wear in the main shaft and bushings often goes unnoticed. While many owners try to fix this with a simple electronic point-delete module, these "quick fixes" don't address the underlying mechanical sloppiness that causes inconsistent timing.

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The Factory’s Choice: Rare 1970s Avanti Service Literature and the "Lost" Loaner Program

How did Avanti owners keep their cars on the road before the internet? Specialist Dan Booth uncovers an extremely rare pre-1975 "Avanti Service Centers" booklet that once sat in the glovebox of every new car leaving the factory. This surviving piece of history even lists Dan’s original shop address and phone number from over 50 years ago.

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Improving Vision: Avanti Rear View Mirror Relocation and Replacement Guide

Struggling to see what's behind you in your Avanti? The combination of a tiny original mirror, a low-mount position, and the classic "Avanti Rake" creates a notorious blind spot for drivers. In this guide, Dan Booth explores the evolution of the Avanti mirror from the 1.5-inch Studebaker originals to the modern 1980s Day/Night versions.

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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.

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The Silicone Secret: A Guide to Avanti Brake Fluid Conversion and Maintenance

For decades, the use of DOT 5 Silicone brake fluid has been surrounded by "mystique" and misinformation. Did you know that Avanti Motors was the first American OEM to install silicone fluid in production cars starting in 1975? In this technical deep-dive, Dan Booth uses original Dow Corning factory data and his 45 years of service experience to debunk common myths regarding fluid compatibility.

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