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#1
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1967 GTO Suspension And Tire Questions.
Hi,
I have installed Global West tubular A-arms and The Right Stuff disc brake setup on my air-conditioned GTO convertible. I'm going to run 15x7 Pontiac Rally II wheels. The springs are from HO Racing. Front springs are 15 inches tall and 480-inch pounds. Rear springs are 13 11/16 tall and 156 inch-pounds. My question is what size tires can I safely run without any rubbing issues? Thanks for your help Dan |
#2
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I run :
Front 235/60R15 Rear 245/60R15 I do know some people can go bigger on rear....
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Troy Rockaway NJ 67 GTO 400HO / TKX 3.27 1ST GEAR-.72OD / 3.36 POSI HOTCHKIS/UMI/BILSTEIN |
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#3
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Do you have the same modifications as my car?
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#4
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Yep, pretty much
Hotchkis Springs UMI Front arms with taller upper ball joints Bilsteins Front tire size will be critical depending on back spacing of the front wheels.... Running OEM Rally II's up front you should have the 4.25" BS I believe which should allow you to run the 235/60's up there.....
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Troy Rockaway NJ 67 GTO 400HO / TKX 3.27 1ST GEAR-.72OD / 3.36 POSI HOTCHKIS/UMI/BILSTEIN |
#5
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What about brakes, though? OP mentioned using an aftermarket disc brake conversion kit, and most of those kits push the wheels outward a bit.
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1966 Pontiac GTO (restoration thread) 1998 BMW 328is (track rat) 2023 Subaru Crosstrek Limited (daily) View my photos: Caught in the Wild |
#6
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Brakes are stock drums in rear and 70 OEM front disc set up
__________________
Troy Rockaway NJ 67 GTO 400HO / TKX 3.27 1ST GEAR-.72OD / 3.36 POSI HOTCHKIS/UMI/BILSTEIN |
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