no, they have strut style suspension.
yes
No, The Silverado 1500 does not have torsion bars it has coil overs and shocks. All 4wd silverados have them and the 2500HD 2wd also does.
Instead of using coil springs on the front suspension torsion bars are used from the lower control arms to the frame ( my 1995 Ford Explorer 4x4 has torsion bars , my dads 73 Dodge Coronet had torsion bars ) If you look at a lower front suspension that has torsion bars you will see the torsion bars going from the lower control arms rearward
I'm pretty sure that only 4WD trucks have torsion bars.
A Dodge Ram does not have torsion bars.
The tundra does not have torsion bars, buy a lift.
no the torsion bars didn't come out til the 1998 model year
yes 02-05 have torsion bars 06 and up have coil overs
I believe the 4x4 has torsion bars and the 2 wheel drive has coil springs
Crawl under the truck. Look at the torsion bars (if you can't find the torsion bars, just take it to a shop and have them do it). The torsion bars will have a bolt at each end; take those bolts out. You might want to have the frame held up with jackstands when you do that, I'm not entirely sure how much the torsion bars are involved in keeping the truck from falling on your face (probably a lot).
Vehicle does not have torsion bars
Its a pain. You first have to drop the torsion bars under the truck. Then get a pulley puller and push the torsion bars back up to remove the metal pieces holding the torsion bars in. Remove the puller and take the torsion bars off. You will then need to remove the bracket holding the torsion bars. ONce that is done, you will have enough clearance to drop the tranny. The hard part is getting the torsion bars back on. Come to think of it, I think you can buy a tool from Ford to pull the torsion bars off. It pretty expensive that why I use a pully puller. Not all F-150s have torsion bars. Buy a Chilton Repair Manual for your correct year. It'll tell you everything step by step.