Forums/Organizations

The Antique Caterpillar Machinery Owners Club, a site dedicated to antique Caterpillar equipment.  They have a popular bulletin board and many knowledgeable people will respond to a question posted there.

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Antique Caterpillar Machinery

Antique Tractors Online Website.  

This link is to IB Dozing. They have forums and are dedicated to the preservation, maintenance and use of all makes and types of old construction equipment.

Heavy Construction Equipment Association

Fastrac...An Antique Tractor Support Group and Information Site 

Parts Suppliers

Regal Corp

  Costex Tractor Parts

Used Parts Suppliers

- Great resource for finding parts

Thill Track and Tractor

Crawler Owners

Clack's Old Caterpillars

Dene's Crawler Page

Walter "Walt" Cheatham.

Jim's Crawler and Bulldozer Photo Site

Bill's Classic Caterpillars

Joe's Tractors