Stock Tire Size

[LSSwapped85]

Stupid question, but does anyone know the stock tire size for a 1985 GMC K1500? I need to downgrade my tires by a couple sizes, I want to be able to spin them, lol.

 

[AuroraGirl]

Stupid question, but does anyone know the stock tire size for a 1985 GMC K1500? I need to downgrade my tires by a couple sizes, I want to be able to spin them, lol.

it depends

Do you have a door jamb/door sticker still on your driver side? It should say your tire size and pressure ratings. How about a SPID label? (glovebox originally) That would tell you what your sizes were too)
More power could spin them too

 

[AuroraGirl]

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[LSSwapped85]

it depends

Do you have a door jamb/door sticker still on your driver side? It should say your tire size and pressure ratings. How about a SPID label? (glovebox originally) That would tell you what your sizes were too)
More power could spin them too

Thank you, didn’t even think about that. It’s got 32’s on it right now and it has a 5.3 LS swapped into it.

 

[waynew]

My 1985 K1500 came with the 31-10.50R15 size. I now have 265/75-15 on it. The tires and wheels in my sig pic were larger maybe 32x11.50. I went back to stock wheels and tire size.

 

[82sbshortbed]

I got 275/60/R15 on mine and can spin them anytime, anywhere I want. Lol

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[Grit dog]

Thank you, didn’t even think about that. It’s got 32’s on it right now and it has a 5.3 LS swapped into it.

If you can’t spin them now, you’re doing it wrong or your LS swap is a total pooch and smaller tires ain’t gonna help…
But 235-75-15 or 31-10.50s is what they came with.

 

[bucket]

If you can’t spin them now, you’re doing it wrong or your LS swap is a total pooch and smaller tires ain’t gonna help…
But 235-75-15 or 31-10.50s is what they came with.

Correct on all counts!

 

[Craig Nedrow]

Ok, ok 16.5 33 12.5'S, can't find them anymore, boohoo