Doesn't appear to be an exact match. It says they are for the p30 vans, so the master cylinder side should wor, but my guess is the brake pedal pushrod is different.
From what I can find, the part number lists for the P30 to 1995, and the older square body trucks. I'm not sure what all would be different, but from the pictures it looks like the pushrod is definately different, other than that I don't know. I do know that a P30 master cylinder is supposed to fit our trucks, so the difference is probably in the pedal pushrod that connects the pedal itself.