Seeing as how this guy wants to bash TCI,I will; post my experience with them. I bought the M2 frontend from them about 5 yrs. ago.It was a fairly easy install,however you do need to read the instruction sheet prepared by TCI,and Oh yeah measure everything up several times before you start welding the crossmember in.Just to make darn sure everything is AOK.At the time I ordered this unit I ordered it with the regular control arms.While my order was being processed they stopped using the regular arms,and I recieved the tubular A arms at the same cost as the regulars.Only one problem hooking up the power steering,and I sent them an Email,which they answered right back.Informing me that if I use a GM pump with the TBird rack that they use I will blow the seals.The dealer who I ordered it thru gave me a pressure reduction valve for my GM pump.The old 55 drives and handles like a new truck,no problems whatsoever.Two yrs. ago I bought the rear suspension package from TCI,which included new 5 leaf springs,spring hangers,shackles ,shocks,shock mounts.spring perches for the rearend,etc.Another easy install and no problems whatsoever.If I ever decide to do another build it will be with TCI products.