Originally Posted by justinzane

. . . Imagine for a moment someone with a car hobby... They have an old car that they love and have painted, chomed, etc. They decide to replace the 4 cylinder engine with a rebuilt 6. They do not have to change the transmission to accomplish this. They could instead decide to replace the 5 speed manual with a 6 speed. The engine stays the same. The two changes are not integrally linked. . .
Make sense?