what gears 7 1/4

The carrier break is 2.47/2.76, I've not seen 2.47's, slantsixdan's voluminous parts catalogs may show them. Assuming they exist then;
2.47
2.76
2.94
3.23
3.55
3.90
4.10
4.11
This includes the Dakota IRS frt. axle application.
Direct Conection had performance 7 1/4 gears in 4.56, 4.88, 5.13