Thrust Block with 489 Sure Grip

Aaron Majcan said
With a 489 cone style Sure Grip and Green bearings with Moser axles, do I need to remove the thrust block from the Sure Grip or is that just for the 741 and 742 cases? What is the meaning behind it?

Hi Aron Majcan,

Here's my setup . Original 8 3/4 housing, 741 center section . clutch style suregrip, 3.91 gearset Moser axles w / 4.5 0n 5 axles w/ screw in studs , 11x2.5 " drum brakes. Thrust block intact. no issues.