[kaptain]

For what it is worth, here are some pics of my drive and steer axle bags.  Not too happy with Newell on this one.  I spent a fortune on overnighting these when I could get them two miles up the road.  I gave them these numbers and they would not confirm they were the right ones.  

An adapter fitting is needed for the fronts because the threads are a smaller diameter.

Thank you very much for the photos and part#
But please allow me 2 questions, 
(1) The Good Year Part# 1R11-066 substitute = Newell Part# ?
(2) describe the fitting and part# or link to buy the fitting? 

For me, coach 701,

for Front Axles: 2x Contitech 876N = Newell Part# 700160,  $320/each @ Newell
for Drive Axles: 4x Contitech 782N (782NP04, Contitech order# 74340,  currently n/a @ Newell, can use a substitute NC#708440 - $678.60/each
for Rear Tax Axles:  2x Contitech 661N = Newell Part#  707750 = $520/each @ Newell

It would be great if I can find a generic substitute.