Peace be upon you. I have a Challenger SRT differential, manual transmission, 3.90, two-wheel drive. It fits Charger and Chrysler models 2015 and above. The differential is, God willing, sound. The seller guaranteed it to me, no loud whining or rattling sound. The reason for selling: I bought it thinking it was for an automatic transmission, but it turned out to be for a manual transmission and doesn't suit my project. Price is 4000. I won't argue with a serious buyer, and Tabby Tamara is available for those who want it.