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Old 04-12-2018, 11:44 PM   #1
KIC
1960 GMC Burb
 
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1960 GMC Burb 305 - Oil Pump

So I had to pull my engine due to a bad freeze plug and decided to follow the normal " While you are there.." routine. swapping back to the original 3-on-a tree tranny, which means new clutch, throwout bearing etc.

Any way I decided to pull the pan to take out some dents in the bottom and ...since I was already there..why not replace the oil pump.

Called several places. I have 3 different parts numbers. I need to order.

Does anybody have the correct part number ?

Two numbers come back to the same style/oil pump the M55, but that seems to be the pump for a V-8

The third is totally different.

I will be pulling the pan tomorrow to actually get eyes on what's in there, but just wondering if anybody knows the correct part number or has a photo of what is in there.
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Old 04-13-2018, 12:26 AM   #2
MusicMan70
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Re: 1960 GMC Burb 305 - Oil Pump

KIC;
Looking up that part on RockAuto seems to indicate that it depends on the mounting bolts; Either 5/16 or 3/8. I'd pull a bolt and see what you come up with.

here's the link

https://www.rockauto.com/en/catalog/...,oil+pump,5564
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Old 04-13-2018, 12:32 AM   #3
KIC
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Re: 1960 GMC Burb 305 - Oil Pump

Thanks, Should have thought about Rock Auto. Since I haven't pulled the pan yet I was just calling to see if I could get one. They were all over the place on which one it was

Thanks



Quote:
Originally Posted by MusicMan70 View Post
KIC;
Looking up that part on RockAuto seems to indicate that it depends on the mounting bolts; Either 5/16 or 3/8. I'd pull a bolt and see what you come up with.

here's the link

https://www.rockauto.com/en/catalog/...,oil+pump,5564
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1960 GMC Suburban
1/2 ton V-6
2nd generation original owner

60 Burb Build thread: http://67-72chevytrucks.com/vboard/s...=1960+Suburban

60 to 66 Burbs only Thread: http://67-72chevytrucks.com/vboard/s...ighlight=burbs
2003 Tahoe LT
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Old 04-14-2018, 07:56 PM   #4
KIC
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Re: 1960 GMC Burb 305 - Oil Pump

So it looks like it is the Melling 70 if it has 5/16 bolts or the Melling 70C or SEALED POWER 22441154 if it has the 3/8 bolts

Mine has 5/16 so the M70 was ordered.
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1960 GMC Suburban
1/2 ton V-6
2nd generation original owner

60 Burb Build thread: http://67-72chevytrucks.com/vboard/s...=1960+Suburban

60 to 66 Burbs only Thread: http://67-72chevytrucks.com/vboard/s...ighlight=burbs
2003 Tahoe LT
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