====== Chevy Express / GMC Savanna ====== ===== limited slip ===== The [[https://www.autoevolution.com/news/a-simple-guide-to-the-g80-locking-differential-94874.html|G80 limited slip differential]] is/was a relatively common option on fullsize GM trucks, suvs, and vans. That (plus awareness about where one drives) would serve most people well. There is [[https://www.differentials.com/gm-axle-ratio-identification-codes/|a plate in the glovebox]] that will literally show G80 for vans so equipped.