Check the listing for details. The Official 12 Volt Conversion Guide Instruction Book by Randy Rundle. Condition: New. Listed at 23.99 USD. STEP-BY-STEP CONVERSION GUIDE – Walks you through converting your classic vehicle’s electrical system from 6V to 12V using clear, easy-to-follow instructions., COVERS ALL KEY SYSTEMS – Includes guidance for generator and alternator hookups, lighting circuits, gauges, ignition systems, starters and troubleshooting., INCLUDES USEFUL REFERENCE INFO – Features a handy 6V-to-12V bulb cross-reference to simplify selecting compatible components during the upgrade., CONVENIENT BOOKLET SIZE – Compact 8.5" x 5.38" format makes it easy to carry, store in the shop or keep in the glove box for quick access., 20-PAGE PRACTICAL MANUAL – Designed for hot rod and classic car builders seeking a straightforward electrical conversion resource without unnecessary complexity.