AMC 20 width

The AMC 15 is fine for a light car with moderate V-8 power as long as you're not regularly drag racing and just running street tires that fit the wheel wells (an 8" wide tire is about as much as you an go). Just loosen then re-torque the axle nuts to 250 ft/lbs if you don't know when that was done last. AMC never specified a re-torque interval because it only needs to be done every 20 years or so. Time takes a toll more than mileage in this case. A couple people experienced spun hubs on 196 powered big cars a few years ago, but those were 40+ years old. The end of the axle will stretch ever so slightly over time, more so than mileage. So it takes over 40 years to loosen enough to spin a hub on street tires with low power, maybe a little less with a big motor. No one with a V-8 has mentioned spinning a hub in an older car yet, though I'm sure it has happened. If the bearings or seals have been changed the hub would have been removed and re-torqued -- the bearings may not last as long with V-8 power...

So if I am understanding this right, the Gremlin, Hornet, model 20, is an inch and ahalf to two inches wider than the model 15 in the American? I'm about to buy a model 20 (cheap) and am wondering if its worth getting? Feed back would be greatly appreciated!!