99+ 8.5"/8.6" rear differential bearings

[RedHeartbeat]

LM603049 diffential roller bearing
LM603012 bearing cup

Just wanted to see if this is the numbers everyone else used. Autozone and Orielly couldn't pull a replacement part number up on their screens. I found these PNs on auburngear.com's website. The roller bearing seems to be correct since it was the same part number as the markings on the old bearing. I don't have the rearend apart right now, waiting on bearings to be delivered to my local store Monday. BTW, getting the old bearings off was a PITA!!

FWIW, the manual says to use synthetic 75w90 lube, 2 quarts.

[Motion427]

98.5 and newer did go to bigger bearings for the GM 8.5.Those numbers looks very familliar.

[bluecajun5.3]

try napa. they should have them