Need help for v belts part numbers - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Accelo · 01-02-2025, 05:44 PM

As information only the X in the number is for the clogs on the inside of the belt.
it makes no difference on the sizing. They are rated for smaller diameter pulleys and higher HP than the belts with the smooth inner. Either with or with out the X in the umber will function fine. I believe this "X" type of belt was invented after out trucks were made. OEM belts of this era were all smooth on the inside.
Cheers

01-02-2025, 05:44 PM	#17
Accelo Registered User Join Date: Mar 2015 Location: washington Posts: 2,426	Re: Need help for v belts part numbers As information only the X in the number is for the clogs on the inside of the belt. it makes no difference on the sizing. They are rated for smaller diameter pulleys and higher HP than the belts with the smooth inner. Either with or with out the X in the umber will function fine. I believe this "X" type of belt was invented after out trucks were made. OEM belts of this era were all smooth on the inside. Cheers



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