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Story & Photos By Jim Clark (The Hot Rod MD)
What: Solving the problem of driveline vibration. Driveline geometry. The process that can be used to address a condition called driveline/universal joint cancellation, often referred to as adjusting pinion angle.
WHAT:  A solid steel or hollow steel/aluminum tube that transmits rotational power from the output shaft at the rear of the transmission to the input/pinion shaft in the rear differential.  The solid steel or hollow steel shaft with outer housing (closed driveline) is usually housed inside a tube bolted to the rearend at the pinion shaft and pivoting around a
Popular Automotive Math Formulas and Conversions RPM = mph X gear ratio X 336 divided by tire diameter. TO CONVERT FROM: Miles to Kilometers, Multiply by 1.609344 Liters to Cubic Inches, Multiply by 61.023744 Inches to Millimeters, Multiply by 54.4 millimeters to Inches, Multiply by .0393701
  Transmission Gear Ratios Chart:
WHAT:Selecting a rearend gear ratio (ring & pinion set) to provide the desired highway cruising speed, 60—65 MPH, for a modern hot rod.
There are a number of high quality shifter kits offered for the wide variety of transmissions used when building a modern hot rod. They mount on top of, to the side of or at the rear of the transmission. One of these locations usually will place the shifter in the desired location in the vehicle.
How to Measure for a Drive Shaftby Inland Empire Driveline Service