Author Topic: belt routing diagrams...  (Read 25005 times)

Offline nick7777

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belt routing diagrams...
« on: December 19, 2010, 09:26:44 AM »
I just bought a 1979 K10 350 w/AC and it has no belts. Anyone have a picture of how they are supposed  go?

Offline Lt.Del

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Re: belt routing diagrams...
« Reply #1 on: December 19, 2010, 10:09:56 AM »
i don't know 'bout your k10, but my '79 350 Big 10 shows this routing.  these are pics i took a few years back when removing my 350 to ensure correct placement of them on my 383 stroker....









hope this helps

Offline nick7777

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Re: belt routing diagrams...
« Reply #2 on: December 19, 2010, 10:20:46 AM »
Thank you. Helped a lot.

Offline Stewart G Griffin

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Re: belt routing diagrams...
« Reply #3 on: July 15, 2015, 08:45:55 PM »
Would anyone know the part# of the belt that goes around the crank, water pump and P/S pulley only?

Offline FlatBlack77

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Re: belt routing diagrams...
« Reply #4 on: July 15, 2015, 09:35:27 PM »
i had some trouble finding one of those myself. i have one on my truck now but its very old(off of an old parts truck) and i cant find a match for it. i even took it in to the parts store and they dont have any that match up. its like juuuust perfectly sized. a smaller belt wont go on the pulleys and a larger belt wont get tight.

"When you are a hammer, everything looks like a nail"
'77 C/10 - 350/350 mild street motor

Offline Don5

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Re: belt routing diagrams...
« Reply #5 on: July 15, 2015, 10:25:39 PM »
I have a 79 with no Ac. My alternator belt is by Gates. It says 7445 Gates XL 11A1130. The power steering belt is a Master Pro 7360  15360 3/8 x 36 5/8 OC. I got both at O Reilly's IIRC.  When we got the truck started back up last year I had a hard time finding the right size. When we did get the right one I bought another alternator belt and put the power steering belt sleeve in the glove box. The sleeve in the glove box was the Master Pro.
It's been a LONG time since I have been called a newbie. Just sayin....

1979 GMC K15 355, SM 465, 205, 3.73 Dana 44 with a Spartan Locker, 12 bolt Eaton limited slip and 6 inch lift with 36 x 12.50 Super Swamper TSL's.

Offline Stewart G Griffin

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Re: belt routing diagrams...
« Reply #6 on: July 18, 2015, 11:52:43 AM »
OK, i got Dayco 15445  (Gates equivalent 7445) to work.  i'm not saying these are the correct part #'s, because both Dayco and Gates catalogs list a different belt.   But these work.
« Last Edit: July 18, 2015, 12:04:30 PM by Stewart G Griffin »

Offline FlatBlack77

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Re: belt routing diagrams...
« Reply #7 on: September 07, 2015, 06:50:33 PM »
ok guys i knpw this topic is a little old but i went through the deal finding a replacement belt for the crank/power steering pump/ water pump.

the Gates belt is "339 6419 B105" im not sure which number is the one they use to cross reference but those are the numbers on the belt. this belt is the perfect fit. not too wide and not too narrow.

the Driveworks belt(from Advance Auto) is "42013" and its the perfect fit aswell. plus it is only $5.10 and it has a lifetime warranty.

I had gone to Napa for a belt and the only one they could match up was the "Napa Premium XL 25-7425" it was the right diameter but it was too wide. it didnt actually sit down in the grooves the whole way and it screeched squealed and chirped like crazy. this was the only one they carried that was the right diameter

hope this helps a few people out in the future
"When you are a hammer, everything looks like a nail"
'77 C/10 - 350/350 mild street motor

Offline Stewart G Griffin

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Re: belt routing diagrams...
« Reply #8 on: September 07, 2015, 07:16:59 PM »
Thanks.  What year engine is this for?

Offline FlatBlack77

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Re: belt routing diagrams...
« Reply #9 on: September 08, 2015, 10:29:43 PM »
the power steering bracket setup im using is from a 78. it might not be a 78 style but the brackets came from a 78 that looked pretty factory as far as i could tell
"When you are a hammer, everything looks like a nail"
'77 C/10 - 350/350 mild street motor