what wheels will fit on my 1979 GMC Sierra Classic C20? What Chevrolet or GMC or other wheels will fit?

[dolinick]

 right now i have 16 inch tires and wheels.  only 2 of my tires might be any good though.  i might have 4 that i can use for a short while.

 

I just bought a 1979 GMC Sierra Classic C20.  I love it.  It has questionable body and some rust but a 350 v8 that smokes a bit and 4 speed granny manual transmisson.  I need some good tires and might change the wheels if i have to.  now it has aluminum wheels and i got 2 steel wheels from a later model chevy.  what years fit on this 8 lug truck?

[dolinick]

[JimCost2014]

1 hour ago, dolinick said:

 right now i have 16 inch tires and wheels.  only 2 of my tires might be any good though.  i might have 4 that i can use for a short while.

 

I just bought a 1979 GMC Sierra Classic C20.  I love it.  It has questionable body and some rust but a 350 v8 that smokes a bit and 4 speed granny manual transmisson.  I need some good tires and might change the wheels if i have to.  now it has aluminum wheels and i got 2 steel wheels from a later model chevy.  what years fit on this 8 lug truck?

Welcome to the site.

 

Nice find, good looking truck!

 

Not sure if this will help, but these are the specs for the wheels:

 

Chevrolet C20 1979,

 8 lugs

Tire	Rim	PCD	THD	CB	http://wheel-guide.com/static/images/pressure.png
235/85R16	7.5Jx16 ET0	8x165		N/A

Wheel fitment Info

Minimum and maximum possible values for tires and wheels for Chevrolet C20 1979

Tires for 1979 Chevrolet C20

• Diameters: 16.0'' - 19.0''
• Width (mm): 205 - 255
• Tire aspect ratio (%): 30 - 55
• Smallest tire size: 205/55R16 94H
• Largest tire size: 255/30R19 92W

Rims for 1979 Chevrolet C20

• Bolt pattern 5x112
• Diameter: 16.0'' - 19.0'';
• Width (inches): 6 - 9;
• Offset (mm): 38 - 51.