but we all know what gearbox and diffs they have so take a l-88 for instans,it should have the m-22 hd rock crusher,say he blows it and can not cet another so he puts in a m-21......both look the same,both are close ratio.......he takes out a top flight sells it for 400 thousand if i bought it and found out later on about the box i would have to ask the ncrs to please explain.......just throwing up a senario,i could be way off but if you dont ask you dont learn.....allso what if he put in a 5 or 6 speed or evan worse a solid rear end in place of a independant rear.....i realize certain things are left to the owner to say yay or nay but not all people are honest,esspecially when these cars are gecomeing more and more valuable..........:grr:grr