Re: wheelbase and chassis
Wheels probably, unless they changed the bolt pattern for some reason (which they most likely didn't). Running boards also highly likely, unless they had to modify the mounting points due to floor pan changes for things like CRD emissions stuff.
'82 CJ-7 w/5.9L and stuff (sold)
'96 ZJ Laredo 4x4 w/lift, gears, locker and stuff (sold)
'06 WK v6 Laredo 4x4 w/...foglights (sold)
'05 Subaru Legacy GT w/lots of track stuff (current)
'14 WK2.5 v6 Overland 4x4 (current)