1973 D20 Wheels. Will smaller truck wiheels fit? Tires recommended

[Madathlon]

So as I been searching I come to need more info. I have a 73 D20 Brave with 8-17.5 tires and 8 lug wheels. I do have the dual piston calibers on the front end and the 440 under the hood. I would like to change over to more common tire sizes radials.

So first what wheels will fit from what truck?

Then the best fit tires to go with the wheels?

[JDxeper]

There is a lots of stuff on the rim swap on the forum.  8 lug on 6.5 in bolt pattern is a common wheel, the problem is the dual pistons on the calipers.  There are new 16 inch coined rims available.  They run from $75-100 each. I found plenty of 8 lug coined 16 in rims in the junk yard but almost all we bent someway and they wanted $35 each for them.  Find one and see if it will fit over the front brake calipers.  If not some have went to 19.5's.  Keep us in formed.

http://www.classicwinnebagos.com/forum/index.php?topic=3391.msg8193#msg8193

another thought, my 68 Ford has rims on the front with no off set, would a no off set rim work in the front ?  The duals with drum brakes are no problem.   My tires are 235/85/16 E rating 120 load range