After ww1 did the military require manufactuers of army trucks to make the same engines?

Question

I heard that after ww1 the trucks over in europe the parts weren't interchangeable so after ww1 the military told the truck manufactuers to produce trucks for the military that had simmilar parts for the engines. AM I RIGHT?

Answer 1

after ww2 all vehicles and all equipment of any kind was put out for bids for what ever it maybe it had to meet military specs=thats one of the reasons the " jeep " was made not  only y willis but ford aircraft had many engines from the pratt and whitney=jacobs and numerious others==

Answer 2

when the army contracts a company that company will manufacture only for the government at times of need such as WW1 and 2 i hope that answers your question.

Answer 3

You're completely wrong, and if you look at a few military vehicles, you'll quickly see that.  For instance, in WWII, the GMC trucks had GMC engines, and the Dodges had Chrysler flatheads, and bigger trucks had Reo, White, Continental, Lycoming,. etc. etc.  Each truck had a very normal engine for that particular manufacturer, but with waterproof ignition and 24 volt electrics added on.

Look at the situation today - the Hummers have always been made with ordinary GM pickup truck engines.  First it was the 6.2 liter engine, then the 6.5, etc.  When the Hummer came out, they just grabbed the first engine they found laying on the floor at GM. That's how they do it.

Wait- I think I know what you're talking about - here's what this means.  

"Interchangeable Parts" doesn't mean that a Chevy part interchanges with a Dodge part.  It means that all the Chevy parts are not custom made.  They are supposed to work off the shelf.  You can take a Distributor out of one Chevy, and put it in another, and it'll work.  We take this for granted, but cars were not made that way in WWI.  In WWI, British parts would have been hand-fitted with some filing and hammering.  You couldn't just take parts out of a box and use' em.  That was a dumb way to build cars.  

When the first Cadillacs were built in which the parts were interchangeable, it was a huge breakthrough.  That was before 1910.  You'd think that was obvious, but it wasn't at the time, especially not in Europe.