I used a bathroom scale and dropped 200 lbs off the the truck by wieghing each piece and come up with the differance in weight
swapped out/deleted on my 88 440 with iron heads
power sterring box/pump/brackets for a manaul box
power brake booster for manaul brake MC
cast manifolds for headers
cast WP & housing for alum pump/housing also alum street dominator intake/alum carb
swapped to a mini starter & alt 1 belt
removed a/c-heater box/carpet/duct work
removed saddle fuel tank/heat sheilds/spare tire rack/all of the e-brake system/stripped self adjusters out of brakes = 2 shoes/4 keepers/ 3 return springs/10g fuel cell
swapped the 9 1/4 for a 8 3/4
weld alum rims M/T sportsman pro 29x15x15 = very light
IIRC I am around 3,600 - 3,700 lbs with the truck but have switch to a M/T sportsman SR radial and it is 4x what the PROS weigh in at on the rim.
my gasser truck will get the same but wil delete the inside dash/door panels/glass/ regulators to gut the doors out super light. ditch the inner fenders/wiper system cab will be stripped bare and only have a small alum dash panel for switches/shaft steering & 1 drag seat.
I do plan to add a roll cage