Stupid question time...driveshaft tech?

[LONGHAIR]

First you have to determine that the splines will match. If they do, the next factor is "phase". That is the relationship of the joints to each other. They must be "clocked" so that they are in the same rotation. Example, If you place the driveshaft on the floor so that the yoke is flat (standing on the yoke) the other end must be exactly the same way.
If that is the case and you have some travel in the yoke when installed, this could be done as a temporary fix. My only real concern is that there is really no need to have the shaft even installed if you don't intend to use the front axle (4x4).

Just so you know, that piece is called a "slip yoke" and the spline end that is goes on is called the "stub"