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Old 06-20-2015, 10:14 AM   #1
JPBrecheisen
Senior Member
 
Join Date: Jul 2012
Location: Harrisville, New York
Posts: 458
Help with 22.5 Wheels/Tire size

All,

Need help trying to figure out if an 11R22.5 tire will fit with these wheels on a 1960 C60. It currently has 8.25-20 bias ply rubber with the widow maker RH-5 two-piece split rims.

Upgrading to 22.5 steel wheels. The "stock" width is 6.75 which you can only run a 10R22.5 on. The wheel builder says they can make 7.5 or 8.25 widths on request to run the 11R22.5 size tire. I'd like the larger tire as I have a single speed rear end and would like to be able to run at 55-60 without turning the engine near 3000 RPM.

I am afraid the rear dual set up will not clear either the leaf springs and/or they tire/wheel combo will touch each other once the duals are bolted together.

jumpsoffrock bought a set of the aftermarket 28160 wheels and I am tracking the issue with the lug holes.


Thanks for the help.
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1960 GMC K1500 LB Fleet Side
1962 GMC K1000 LB Step Side
1988 Chevrolet C2500

Last edited by JPBrecheisen; 06-21-2015 at 01:40 AM.
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