Originally Posted by
4 l-bodies
Make sure you use longer bolts than original to secure girdle, as the girdle being .250" thick, will have that much less thread engagement otherwise. Test fit to make sure it fits correctly, I've had to tweak a few of them that weren't bent quite right. All the bolts are going into soft aluminum, so it must fit well or the bolts could pull the threads out of the aluminum and wreck you day and your transmission case. Torque bolts to spec!
I've had a diff pin break on a 525. It is REALLY ugly. Mine broke going through traps at somewhere around 110 MPH! Did about $3500 in parts damage to my GLHT. Lucky I didn't crash the car. The shrapnel hitting the floor pan felt like it was gonna come right through the floorboards.
If I were you, I would seriously limit as much on-off throttle at speed as much as possible. Such as when autocrossing or letting off throttle at end of 1/4 mile. That is what consistently killed mine.
Todd