I bought a 91 bird that was ran into a telephone pole. im just about ready to put the radiator support back in but i need to find the measurements to make sure the subframe is straight(dont want to drive down the road sideways.)

Does anyone have or know where i can find this info.

It's in the factory service manual, available from Helm.

This is for an 84 Camaro, it should be the same or at least similar to your 91 Firebird.

<img src="http://www3.telus.net/~crussel/frame.gif">

thanks a lot that is exactly what i was looking for
it should definetely work