Oswald - I did some searching of Chevy Master Parts books and online web sources on your wheel bearing question. The ND (New Departure) numbers you posted are only a part of the complete 3 piece bearing sets. The correct GM#s for the bearings you seek are:
Front Inner: GM# 909046 (made up of 1 each of ND909726, ND909546 and ND 909626)*
Front Outer: GM# 909045 (made up of 1 each of ND909545, ND909625 and ND909725)**
The correct cross refernced part numbers are:
* Cross references to complete bearing sets: Part# B46 for brands National, BCA, L&S and probably others. Also Part# WBB46 for brand WJB.
** Cross references to complete bearing sets: Part# B45 for brands National, BCA, and L&S and probably others.
If you search ebay, you will find some of these replacement brand bearings available. Some at fairly reasonable prices, like these
WBB46 inner bearing sets. Not a lot, but some.
If you want, you can also find them at some of our regular well known supporting vendors like Jim Carter. They carry
Front Inner bearings sets as Part# ME745 and
Front Outer Bearing sets as Part# ME746.
Hope this helps you out.
