Every time I have a 'close encounter' with a Freightliner Dealership they tell me I have the BIG Spicer. 1R-7F gears. Is this the Spicer you're talking about? Doesn't seem like it could be because I have a '99 FL-70, ISC with 1, 167, 470 miles and have NO complaints! At 800k miles I didn't...