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Ok, with the exeption of you radix guys. I need to know who has installed a walbro pump in a 04 or 05 with a returnless fuel system. ( In tank Pump) I have a walbro gss342 pump for my denali, the walbro pump is about 1/2 inch in diameter smaller then the stock pump, I am trying to figure out what I can do to make it fit snug. I dont really want it free floating in there. Granted the fuel pump sock will help support it some at the bottom. Need some help here please..
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The same thing happened to me, I was sent the wrong pump for an '05 silvy I installed a Radix on, the '05 had a larger diameter pump than the one i received. I bought another one that fit.
I can't think of anyway to secure it, you might want to buy the right one, I know it's a pita though.
good luck,
the 340 kit is the right one .it has a sleave that the pump sits in snug.
I think I am just going to send the pump back and buy the pump kit from Magnacharger. Actually I might get the boost pump from magnacharger, does anyone have any opionions on this?
So does anyone have any input on the Boost a Pumps?