[Y2K16T8]

Last night I finally got around to check the transmission mount bolts for tightness because I've been having some of that klunking sound. I found two bolts only slightly loose, but nothing to be worked up about. While under there though, I grabbed the driveshaft and was able to rotate it by hand about a 1/16th of an inch or so in both directions. Is it normal to have some play in the driveshaft? I'm sure that's what's causeing the clunking sound.

 

[PBGas]

Perfectly normal. There is always going to be some play in the driveline. It comes partially from the rear splines of the 3650 trans and partially from the meshing/play between the pinion and ring gear of the rear axle. No problemo. If you had 1/2 of play, then, that would definately be a problem.

Paul G.

 

[Y2K16T8]

Thanks Paul. I know you said before the aluminum driveshaft got rid of the klunking in your Bullitt. That's a mod I have planned along with 3.73 gears.