What CAN'T be easily upgraded in a Jeep?

I want to get a Jeep to learn manual in, dick around with on dirt trails, and have in a SHTF (EMP) scenario. What can I get that will still function after our phones and retro games are all zapped?

>what can't be easily upgraded

The average Jeep driver's IQ

There are bolt on dana 80 kits and lightened 60s also one shop has bolt on portals.

The only thing I can't find are frames and firewalls. Everything else you can order to your door.

Your masculinity.

nigga, this shit looks like a barbie car

You can't upgrade the Chrysler brand, sorry