What did you do to your NBS GMT800 Tahoe/Yukon Today?

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wjburken

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My weep hole is leaking !

I can get a Gates 45006 or an ACDelco 252-845 for about the same $$$.

Any preferences either way ?
AC Delco 12703898 is the OEM grade water pump.

AC Delco 252-845 is their Gold or Professional series pump.

Go with the OEM, not Professional. It’s $40-$50 more but will give more piece of mind.
 

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