Looks like inverted /\ rear shocks, front leaf conversion from IFS, diff relocated forward about 2 inches to clear tires on full compression,

Shock mounts look the same which seems strange? i would of installed shock hoops for extra up travel.

Chassy reinforced using the mounts for the exocage and possibly wheel spacers to increase the wheel base and stop the tires from rubbing on the chassy.

Could be wrong but the shocks look like ranchos long trvel items or possibly procomp?

Am i close?

lol