Are we looking at the question of build sequence in the wrong way - is it shortage or maybe excess parts or more likely BOTH that are driving which trucks get built when - I know this does not explain those lost in the black hole of May-August orders - BUT - At one point every Longhorn on our tracking sheet from August to early October had been built and there have been batches of other builds with unique pieces. As I recall there was a batch of Power Wagons that went thru close together. And there was a time when Limiteds were favored.
Suppose they had just received a large shipment of Longhorn Grills or maybe Limited Grills or Power Wagon Grilles which are unique, or maybe unique Interior parts or ???. Longhorns are not the most popular trucks (more here than overall build - but even in our list the Laramies here are dominant and Bighorns second). They probably order parts in bulk and hope to get some of what they order just like everyone else these days (Home Depot had about 200 generators arrive at one time here well after the storm - stacked everywhere in aisles).
Now Stellantis has a big stack of unique Longhorn (or ???) parts occupying space. So why not build out that stockpile to clear space and the Longhorns or Limiteds or whatever get put in line before their time while others get pushed back. And of course the ones that are short parts are already at the back of line until their parts become available. And it also supports moving more of the higher profit models in this scenario.
Current Spreadsheet population:
340 Laramies
153 Big Horns
141 Limited
97 Longhorn
65 Tradesman
38 Power Wagon
The reason I thought of this is I can account for 2 trucks (granted small sample) built approximately same time with same tires but different wheels. Assuming, they buy Tires/Wheels the old fashioned way, they receive pallets of mounted and balanced tire/wheel assemblies. My Longhorn made it to me in 10 weeks with 34 and 35 th week dated Firestone Transforce HT's on the Longhorn unique wheels while a Laramie built same week had 42 nd week dated tires.
Yes it could be purely random, but they appear to have had my tires on hand for at least 7 weeks longer than the Laramie built at same time. Do they really want to sit on parts for 7 weeks in the "Just-in-time" model still being pushed by the MBAs. And I realize the other Longhorns in that group of about a dozen + trucks may have been duallies or had 20 inch wheels, but there are a lot of other unique Longhorn parts (Grill, Interior, etc).
So --- Is the Build schedule built on multiple factors unrelated to order date - specifically, 1. Shortages, 2. Surpluses, 3. Profit Margin, 4. X Factor?