I recently bought a couple of old built Kenworth cabovers off eBay figuring on rebuilding them. I plan to use the parts from the recently reissued K-100 Aerodynes to fix them up.
I noticed right off that the older kits used Cummins engines and manual transmissions, where the Aerodynes have Detroit engines with Allison automatic transmissions. The Aerodyne kit has the 8-bag air ride suspension. One of the old builts had a walking beam suspension, and the other has the torsion bar setup. Did the first issue of the K-123 have the torsion bars, like the first issue of the W-series? Or has someone swapped out the rear suspension? All the others I've seen have the walking beams.