So the underside of my pig is rusted all over and was wanting to take all the under parts of my warrior and swap over.
I understand from the last post that oil pressures etc are different from my 01 wired from my 03 fly by but what can and can't be swapped.
Front axle
Rear axle
Gearbox
Prop
Transfer boxes front and back
And anything else I've forgotten

All of those should go over. Rear axle off your warrior should have a diff lock. Not sure if your new truck will... You'd have to swap in all that stuff as well to get it working

The only single thing that comes to mind to be careful of is if the later one had ABS and the earlier one didn't
And be careful , as Rob says about the diff lock, I believe only the Animal versions had LSD

Thankyou folks, def good to know, up for mot real soon and it's def gonna fail. Just wanna swap the rust for non rust, just glad my back axle didn't sell.