Salaries at General Motors

[wavinlife]

Hello Detroit people. I am out of state and recently got a job offer for a lead engineer position at GM as a contract employee. I have 1.5-2 yrs directly related experience and 1 year of not so directly related experience, but definitely same field [[quality and manufacturing).

I am being offered 93K with 10 days paid vacation [[ No other benefits)
I see the from some online tools that salary should be 120-130K.
Contract house is being very rigid.

i currently work for another OEM with a 75K package.
I have BS-ME and MS-ME[[mechanical) degrees.

Is there anyone here who has some knowledge about salaries @ warren office? It would be helpful if someone can shed some light.
Should I take it?
I hope I am not breaking any rules. I hope to enjoy Detroit,MI.