- Automotive Industry Portal - Marklines
- Automotive Books & Journals – Springer Professional
- Free 3D Parts from 3D Content Central
- Tire Analysis and Vehicle Dynamics (White Smoke)
- Brake Caliper Fitment Templates - Stoptech
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- ENG Tips – Engineering Forums
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- Animated Engines
- Aircraft, Automotive, Marine and Industrial Applications
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- Preferred Mechanical Tolerances Metric ISO 286 – Engineers Edge
- Engineering, Manufacturing Tolerance Limits Fits Charts | ISO 286 Tolerances | Metric Tolerance Chart - Engineers Edge
- Bolt Science Web Site
- Bossard Fasteners
- Injection Molding - CUMSA