ANother good choice to replace that 7 1/4.8 1/4 out of a 73 duster is 1/2 narrower then the 7 1/4 i removed, witch was great, street and track an 8 1/4 with sure grip enjoyed it self behind my truck, 330 hp for a ton of miles and hard hits at the track, but it would be cool to have an 8 3/4