Originally Posted by aridranger03
No, I'm kinda new to driveshaft tech.
How do you check? Thanks for the help.
set the e-brake
put tranny in neutral
crawl underneath your truck
grab the drive shaft
slowly turn the drive shaft (back and forth in both directions), paying very careful attention to the u-joint. There should be no slack in the u-joint between the driveshaft and the flange. If it is really bad, you can hear it cluncking when you change rotational direction on the drive shaft.