Charles,
It is possible that you pushed the drive shaft too far in on the GL and it is hooked behind the rear-end gears.
Try turning the shaft as you pull it out of the front.
Also, as a FYI, it will not pull out of the back of the drive shaft on a GL.
It is possible that you pushed the drive shaft too far in on the GL and it is hooked behind the rear-end gears.
Try turning the shaft as you pull it out of the front.
Also, as a FYI, it will not pull out of the back of the drive shaft on a GL.