I know that 027 is the SO pump and the 028 is the HO pumps, so what pump is the 029? is it the one from fedex trucks? anything wrong with putting one of the 029's on an HO truck? full serial number is 0470506029 if that helps.
Thanks.

Scott.

 

I don't think that VP and your ECM would get along too well. I could be wrong though, someone else will know forsure.

 

If you use a non Dodge pump, you will be rpm limited to that pump. If the pump is set to redline at 2700, that will be your new redline.