Valley Balancing

Boyd's Drive Line

Service of Stockton
1900 Herndon Road * Ceres, CA 95307 679 E. Miner Ave * Stockton, CA 95202
 209-538-8956 * fax-209-537-8956 209-944-9966 * fax-209-944-9968

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How to Measure

To ensure proper fit and performance, we have designed several measuring sheets depending on your application. These drawings will guide you to get it right the first time.

To measure cars and trucks properly, place two safety stands under the differential housing tubes to support vehicle high enough to maneuver under and measure easily. Measuring the overall length correctly is very important.

  • Step 1. Pick the Diagram that best suits your application. MEASURE EXACTLY as shown and note your answers to use on the Quote page. Diagram "1" and Diagram "2" are used MOST OFTEN for Race Cars and Street Rods.

  • Step 2. Requires a tape measure. Remember always measure your vehicle with the rear tires on the ground OR the rear end on 2 safety stands. It is important to have the suspension in this position to measure correctly. DO NOT MEASURE with the suspension hanging. If measuring 4x4 trucks, you must have both the front and rear tires on the ground or the axles supported on safety stands.

  • Step 3. Call 209-538-8956 for measuring questions.

Quick Chart

  • Diagram 1 - Most Cars, Vans & 2 Wheel Drive Trucks, 4 Wheel Drive Rear, All American Motors, All Jeeps

    • American Motors                                           ○  Dodge                                                ○  Mercury

    • Buick                                                             ○  Ford                                                   ○  Oldsmobile

    • Cadillac                                                          ○  GMC                                                 ○  Plymouth

    • Chevrolet                                                       ○  Jeep                                                   ○  Pontiac

  • Diagram 2

    • Most Car or 2 Wheel Drive Trucks

  • Diagram 5

    • Buick: Some Cars with CV

    • Cadillac: Some Cars with CV

    • Chevrolet: Some Cars with CV

    • Ford: Most Cars, Vans & 2 Wheel Drive Trucks, 4 Wheel Drive Rear

    • GMC: Some Cars with CV

    • Mercury: Most Cars, Vans & 2 Wheel Drive Trucks, 4 Wheel Drive Rear

    • Oldsmobile: Some Cars with CV

    • Pontiac: Some Cars with CV

  • Diagram 6 - 4 Wheel Drive Front, All Jeeps

    • Buick                                                             ○  Ford                                                   ○  Oldsmobile

    • Cadillac                                                          ○  GMC                                                 ○  Plymouth

    • Chevrolet                                                       ○  Jeep                                                   ○  Pontiac

    • Dodge                                                            ○  Mercury                                           

  • Diagram 7 - 4 Wheel Drive Front, 4 Wheel Drive Rear, All Jeeps

    • Buick                                                             ○  Ford                                                   ○  Oldsmobile

    • Cadillac                                                          ○  GMC                                                 ○  Plymouth

    • Chevrolet                                                       ○  Jeep                                                   ○  Pontiac

    • Dodge                                                            ○  Mercury                                           

  • Diagram 8 - Vans & 2 Wheel Drive Trucks 2 Piece, 4 Wheel Drive 2 Piece

    • Buick                                                             ○  Ford                                                   ○  Plymouth

    • Cadillac                                                          ○  GMC                                                 ○  Pontiac

    • Chevrolet                                                       ○  Mercury

    • Dodge                                                            ○  Oldsmobile

  • Diagram 9 - Vans & 2 Wheel Drive Trucks 2 Piece, 4 Wheel Drive 2 Piece

    • Buick                                                             ○  Ford                                                   ○  Plymouth

    • Cadillac                                                          ○  GMC                                                 ○  Pontiac

    • Chevrolet                                                       ○  Mercury

    • Dodge                                                            ○  Oldsmobile

  • Diagram 10 - 2 Wheel Drive 1/2 Ton 2 Piece up to 1972

    • Buick                                                             ○  GMC

    • Cadillac                                                          ○  Oldsmobile

    • Chevrolet                                                       ○  Pontiac

Most Car or 2 Wheel Drive Truck applications will use Diagram "1" or Diagram "2"

    Please see Diagram "3" & Diagram "4" for additional information on measuring the rear u-joint

Most Ford vehicles use Diagram "1" but some may use Diagram "5"

For 4x4 vehicles, see Diagram "1", Diagram "7", and Diagram "5"

    Most 4x4 Front shafts use Diagram "6" and Diagram "7"

    Most 4x4 Rear shafts use Diagram "1", Diagram "7", and Diagram "5"

For Car, Van, & Pick-Up 2 Piece shafts with a Center Support Bearing

    Use Diagram "8" for 2 Piece shafts with slip yoke at rear of transmission

    Use Diagram "9" for 2 Piece shafts with NO slip yoke at rear of transmission

    Use Diagram "10" for 1958-1964 Chevy Cars and Chevy 1/2 Ton Trucks up to 1972 with the "X" Frame construction

 

If you have an application that does not match one of the drawings, please call 209-538-8956 for instructions