Doors from 2000 feel lighter than 1996

Monday

Member
Feb 8, 2022
40
20
18
56
British Columbia
When I was at the wrecker pulling my 'new' s197 seats, I noticed the doors on a close by 2000 really felt lighter than my doors (1996). My questions are; One. Are there weight differences? Two. Will 2000 bolt on a '96? Three. Were they made of different steel? maybe aluminium?

Thank you
 
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