I'm looking to go the other direction- - - -lower gearing. Is there a lower ratio gearset than the 5.13:1 available for the 1 ton rear axle? I'm trying to decide what rear end to use on a doodlebug tractor I've got on the drawing board, and so far, I've got a choice between a 5.13 single speed axle and a vacuum shift 2 speed that can get down into the 8-something gear ratio on the low side. Power is going to be a Mercruiser 4 cylinder, with a turbo 350 automatic and a crash box 4 speed in tandem ahead of the drive axle.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!