68RFE Versus Aisin: What are the differences? Which transmission do I have? Can I swap transmissions? Which is better?

68RFE Versus Aisin: What are the differences? Which transmission do I have? Can I swap transmissions? Which is better?
The Alberta Diesel Days event featured drag racing, tractor pulls, and a huge crowd.
A triple-turbo Peterbilt semi-truck set a new quarter-mile world record.
The 10th anniversary of Rudy's Spring Truck Jam saw seasoned racers adapting to new promod configurations and tackling brand-new competition classes.
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