Just replaced my '99 FL-70 Spicer ES066b tranny with the above after the 3rd failure of the Spicer. After being used to the pickup style shifting method for better than 500,000 miles I'm having some real problems getting the hang of downshifting this new Eaton-Fuller. I'm doing ok on the upshifting but "grind city" on the downshifting. On both I've been told to use the clutch only to get out of the current gear and then use only accelerator pedal to get to the next one. I'm getting more than frustrated after 2 weeks with this new one! Any suggestions??