I'm thinking the Frito-lay trucks with the 4BT had 8 hole wheels with coil spring front ends. They used the GM 14 bolt rear axle.
I don't know what engine combos came with what suspensions and axles, but there are several choices of axles.
I have seen all of the following on P30 chassis, or on chassis very similar to (I did not read all the tags):
A, 5 lug front 10 lug rear I-beam front, Dana 70HD, Dana 80, or Rockwell rear.
B, 5 lug front independent suspension, 10 lug rear, similar rear choices as above.
C, 8 lug front and rear with I-beam, very few of these, and probably Dana 70, 70HD, or a 14 bolt rear.
D, 8 lug front and rear with independent front suspension (most common 8 lug P30 chassis) and probably the same rear axle choices as above.
The one of interest for an AD 1.5 or 2 ton is the first choice, choice A, an I-beam front with 5 lugs and a Dana rear. The Rockwell is not such a good choice as fast gears are either not available ever, or hard to get/expensive, quickly spot a Rockwell by the square axle "tubes".
Grigg
