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**hatzie** · 12-10-2019, 11:18 AM

There are several schools of thought on this.
I'd do it because it's so easy to do... especially with the engine on a bench or a stand.

Replace the O-ring, pickup tube, and strainer... I'd install a pickup tube girdle so it's being held onto the oil pump by two bolts not just one. One bolt was good enough for GM but they only build them so that 98% of them make it past the warranty. After the warranty runs out they really don't care.

12-10-2019, 11:18 AM	#2
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,912	Re: Oil pump replacement on 5.3 vortec There are several schools of thought on this. I'd do it because it's so easy to do... especially with the engine on a bench or a stand. Replace the O-ring, pickup tube, and strainer... I'd install a pickup tube girdle so it's being held onto the oil pump by two bolts not just one. One bolt was good enough for GM but they only build them so that 98% of them make it past the warranty. After the warranty runs out they really don't care. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.