Tom,
If your just looking for a good quality replacement regulator I have those, only difference in apperance is it wont say Delco Remy on the top of the reg., however, if you have a delco reg. cap you can install it on the new replacement reg. or I can do one for you if you want that apperance. I may even have a NOS reg. for that truck but wont know until I get back to the shop. You can contact me at classicgenerator.com if you like.
Thanks
Ken
Classic Generator