You never owned a Chrysler product, did you? They were notorious for taking a transmission from a much smaller car or truck and putting it into a bigger one because on average they would last the life of the 3-yr/36k mile warranty, and not much longer. Same with things like shocks and struts and springs.

GM on the other hand went the exact opposite direction most of the time and put an overengineered heavy duty transmission with maybe slightly cheaper internals into their smaller vehicles.