Here is a used set of DOUG NASH 10 spline quick change gears. They are set 2. They are 4.28 with a 4.11 ratio ring and pinion and 5.04 ratio with a 4.86 ring and pinion.
NEW Chester Set #2 Quick Change 4.27/5.04 Rear End Gears 10 Spline Sprint Car
Quarter Master Set #2 Quick Change 4.27-5.05 Rear End Gears 10 Spline
SCS LIGHTWEIGHT Set #2 Quick Change 4.28/5.04 Rearend 10 Spline Gears with Case
Coleman Set #25 Quick Change 4.54/5.37 Rear End Gears 10 Spline w/ Storage Case
AFCO Set #4 Quick Change 5.32-6.27 Rearend 10 Spline Gears Frankland Tiger
SCS Light Weight Set #16 Quick Change 5.48-6.48 Gears 10 Spline w/ Storage Case