No, I am 100% sure my truck has not had that spacer in the 3 years I have owned it. It has one now though, and the 3rd pump has lasted about 30miles so far, which is about how long the 2nd pump lasted. We'll see. Thanks for the help, I'm thinking that was the problem - keep ya guys updated.

-Scerb

http://www.scerbfab.com/carb_faq.html