I don't have those measurments handy for you, but I am using a Heidt's front end and got the 5/8" (I believe that was the measurment) narrowed tubular control arms (along with 2" dropped spindles). I am glad I did because I like the look with the wheels and tires nicely tucked under the fenders and don't want a little skinny tire up front (although not too wide either with a manual rack). It seems like I'll be able to just fit a 15x7" wheel with a 3.5" backspace. Just something to think about if you are going for a low and mean look!