I have one in the 14 bolt FF in my DD, no problems whatsoever. My truck has an auto in it so I don't hear any noise from it at all, in my old truck w/ a 4spd the same Detroit was a little noisy on rare occasions but never bad. As far as being acceptable, I run radial tires and the wear is a little accelerated but nothing bad (naturally, it would be worse with bias tires). I would think the tire wear would would be the only possible issue. Some people worry about strange characteristics on the street but IMO this is way over analyzed, you'll get used to it just like you would bigger tires or an engine performance upgrade.