does anyone know the legnth of a stock alumnium driveshaft for a ws6

[lj1124ta1]

i just put 4.10s in my car and replaced all the berings possible and I started to notice a serious vibration, after a little time and a few hard launches.... i checked the u joints , there junk then replaced them and the vibration is still there so i went under the car while it was running in gear and noticed the driveshaft was slightly bent ! so i dont want to replace w another stock alumnium driveshaft but im trying to find out if the stock firebird steel driveshaft can be a direct replacement? i know its heavier but its alot stronger which is what i need.

[INMY01TA]

I believe they are the same length.

[9t8z28]

They are the same.

[lj1124ta1]

thank you