RICHMOND GEAR 4+1 STREET FIVE-SPEED TRANSMISSION

The 4+1 Street gives you a choice of first gear ratios (3.27, 4.06, or 4.41), plus 2.13 second, 1.57 third, 1.23 fourth, and 1.1 fifth gear ratios. That means you can run an "economy" rear-end gear to save gas and have the performance of a lower (numerically higher) gear ratio.
In fact, Richmond recommends using a rear-end gear between 2.73 and 3.36. See Calculations Below!!!
The 4+1 Street is drilled for use with most popular four-speed bellhousing's.
It's the same length as most four speeds, too, making installation easier.
Note: To specify first gear ratio, please use one of the following letters after the part number: A---3.27,
B---4.06, C---4.41

RMG-7031710 or Alternate RMG-7032718 Road Race
Chrysler, 1 3/16" 18-spline

Calculate it for yourself!  http://www.richmondgear.com/

Richmond 5 Speed

1st 3.27, 2nd 2.13, 3rd 1.57, 4th 1.23 5th 1.1

With 2.73 Gears

5th     150 MPH    25.7" dia Tire    1.1 Ratio   5889 RPM

4th      130 MPH   25.7 dia Tire      1.23 Ratio  5707 RPM

3rd     105 MPH   25.7 dia Tire       1.57 Ratio   5884 RPM

2nd     75 MPH     25.7 dia tire       2.13 Ratio   5702 RPM

1st      50 MPH      25.7 Dia tire      3.27 Ratio  5836 RPM