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I bought a fuel pump but the sock that comes with it is shorter than the original. Does it matter? Or can I still use the old sock?

 
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If the original is full of junk trash it, of not it's up to you. I guess theoretically the larger stock filter would have more openings, and therefore be capable of flowing larger amounts of fuel. But you may not need that much flow.

 
Rep Power: 222

Comparison picture would be nice, it's probably fine