[lolife99]

Here's the selling point.
The front track with of these trucks looks like crap,... when trying to run the same size wheel on all four corners.
The wide front end look rediculous compared to the narrow 60-69 rearend width.
You compound this with the addition of adding disc brakes up front,... which makes the track width even wider and doesn't allow the use of stock steel drum brake wheels, (pre-'71), because of disc brake caliper clearance issues.
6-lug 15x8 rally wheels are cheap.
I just passed up a set of 4,... for $40.
I have too many already.

But,... the addition of the 15x7's help make the front end look better, because they don't stick out so far.
They are the max backspace 15" wheel (4" BS).
Even the 15x7 5-lug wheels only have a 3-5/8" BS.

These wheels work great on the 60-66 trucks also.
I have even seen these on the 47-54 trucks running the original front axle or dropped axle.