center support bearing

hey guys, i am having a hard time finding a support bearing, i have a 1991 2600 ext. cab rear wheel drive 5 speed. i have ordered 4 with no luck.

I went to Jim Ellis and hey show the part still available for about $50.00.

http://www.jimellismazdaparts.com/products/Mazda/1991/B2600/SUPPORT/1908065/P03025310C.html

Powertrain industries 1-800-798-4585 make sure to tell them you need the 28mm bearing they are $81.97 shipped i just ordered 2 of them