Hey everyone OE Parts Headquarters here. If you are looking to replace your alternator anytime we suggest that you take a look at what we have available. The links below should take you straight to the parts on our site.

The 75 AMP alternator is a MOTORCRAFT (E8PZ10346-CRM1) ALT ASY,GL519-RM - oehq.com
The 95 AMP alternator is a MOTORCRAFT (F1TZ10346-CRM1) ALT ASY,GL503-RM - oehq.com

These are remanufactured alternators from GM and have a one year warranty. Also, shipping over $75 will ship for free so these alternators will have no shipping or sales tax charges. These alternators fit all 1987-1994 F-150, F-250, and F-350 trucks.