[SCOTI]

68LSS1, I was curious so I did some weighing on a scale @ the house.

Naked crossmember.................... 60lbs
73-87 Upper A-arm ..................... 5lbsx2
73-87 Lower A-arm .................... 20lbsx2
Man Steer Box ............................ 20lbs
73-87 Spindle/1.25"rotor assm .. 50lbsx2
Inner/outer tierod + sleeve ........ 5lbsx2
Manual pitman arm ..................... 2lbs
Idler ............................................ 2lbs
Stock length coils ........................ 8lbsx2

Total............................................ 260lbs. Even adding the stock calipers, your @ less than 270lbs. I didn't add shocks or sway bar because they both will have these so it's a wash. Like I said, the MII does weigh less, just not 400lbs less. I'm not guessing here, I actually went to the garage & weighed this stuff, so simple math tells the truth.

Personally, I like the MII stuff on certain apps. I think I've seen you on the pro-touring site, if you research the suspension board, there aren't many handling cars that use MII geometry. It's fine for a cruiser, not for cornering. This is also true for the factory truck stuff.

That being said, Progressive Automotive & Flat Out Engineering both make weld-in crossmembers w/R & P set-ups based on Corvette geometry which is much better than MII. If I were to use a bolt-in crossmember w/R & P, I would prefer the Jim Meyer set-up since it uses Caprice/F-body spindles, rotors, & suspension parts w/a T-bird sourced R & P.

I do believe a truck can be made to handle better & I'm 100% for it as well. I would just hate for someone to spend the $$ for the MII set-up & not out handle a stock, updated, & tuned GM truck set-up. BTW, glad to be a part of an intelligent discussion. Please post the pics of your truck whenever you get the chance.