Get the 3/8". If you are doing the late tank in a early body you need longer bolts and cut to length.
ok thanks...but while I am at it, it really looks like my valance panel is going to be severely blocking the bolts from going straight down...any ideas?
yea I definitely need to do something to the ones in the back...but what's the deal with the ones towards the front?? it needs like a 1/2 carriage bolt