Some of the crosses I get for GM141854 are Timken J281248 and Bower possibly Bower 93424
Both are presently on ebay starting at 9.99
http://www.ebay.com/itm/J281248-BOWE...4AAOSwpLNX99P0
http://www.ebay.com/itm/NOS-Bower-Ro...VWDrOm&vxp=mtr
In fact, if you run the 93424 number on ebay you will come up with quite a number of them, including made by Hyatt, who is listed in the GM book as the cross reference.
http://www.ebay.com/sch/i.html?_odkw...ARING&_sacat=0