|
When was your car built? There is a bulletin for popping noises in the axles for cars built prior to June 1 2009.
I've driven one that makes that noise and it popped every time I got on the throttle hard. Maybe the posi mod is making it do it on turns? The fix in the bulletin is to add a special washer to the end of the axles.
Clutches slip/sticking can make a metallic pop sound. Did you do a number of figure 8s after changing the lube/additive?
I'd try some Royal Purple Max Gear, in the thicker weight (something/140), it already has the additive in it. Then take it straight to a parking lot and do a bunch of slow figure 8s over and over.
|