Stock tires - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**MJN** · 09-02-2020, 08:50 AM

Quote:

Originally Posted by 85/Silverado

anyone know stock tire size for a 86 c10 .... rlms are 15 x 7 ?

Do you have the SPID that shows what RPO tire and wheels were ordered with the truck?

If you scroll to page 161 of the pdf you'll find all the tire sizes available for '86, there are about 4 pages worth. Page 175 has a table for C/K 10 series tires.
Page 4 shows the standard specs of a C/10 15x6 wheels and P195/75R15 tires.
Available wheels for C/K 10 series are listed on page 155. 15x7 and 15x8 Rally wheels are listed. If it came with P225 or P235 it got 15x8's, otherwise 15x7's.
https://www.gmheritagecenter.com/doc...olet-Truck.pdf

aggie91 · 09-02-2020, 05:14 PM

Quote:

Originally Posted by Rich84

Do you know what size the '88 and up wheels are.. 7 or 8?

I know they are not 8". Not even sure they are 7". I really think they are 6.5" wide. I will look to see if I have one without a tire and I'll get a measurement.

**hatzie** · 09-02-2020, 06:01 PM

Probably 6.5"
I had to go to the N89 17" wheels to get 7" width on stock GM wheels for my K2500 T800. The PY0 alloy wheels it came with were 16x6.5"

**MJN** · 09-02-2020, 08:05 PM

The steel 6 lug W/T wheels are 16x6.5's

09-02-2020, 06:01 PM	#28
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: Stock tires Probably 6.5" I had to go to the N89 17" wheels to get 7" width on stock GM wheels for my K2500 T800. The PY0 alloy wheels it came with were 16x6.5" __________________ 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.

09-02-2020, 08:05 PM	#29
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,052	Re: Stock tires The steel 6 lug W/T wheels are 16x6.5's Attached Images __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com



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