Hy Dusty53, I believe the "packing" was the felt, and I believe the felt was eventually discontinued as well. However you already posted the part number so you could purchase one and install it if you like. I am not sure about the number that tclederman posted for the sleeve for the pinion yoke, in the part description it says "Rear Outer; GMC HO72", not pinion yoke. I'll see if I can confirm the sleeve part number, hope that helps. Okay I have confirmed the sleeve part number is correct for the pinion yoke SKF 99259 SKF p/n for the felt is 528 (it was discontinued in 1960)

Last edited by 3B; 04/02/2015 12:57 AM.