Suspension height versus tipping. On the narrow-frame trucks, I found that raising the suspension made them much too tippy, so I tended to use stock suspension on those because slow and annoyed is better than flipped and frustrated.

I would like "stock" ride heights to be always available on all models.

@AlonzoTG
I don't think "stock" suspension is being removed - if you're referring to the test branch, it appears that the naming of almost all the upgrades have been broken temporarily... the truck I looked at had "stock" suspension named "raised", and "raised" named something like "custom tuned". They were still their original selves underneath the altered names, as far I could tell.