This is a fully rebuilt megasand with 091 gear stack, it has a new 5.14 ring and pinion set, new weddle 3.11X2.08 main shaft set ,1.50 3rd, 1.14 4th, 930 flanges. This is a great upgrade from your 091 gearbox, same mounting as a mendeola. 4500.00$ call or text rick at (951) 377-1349