#1  
Old 12-15-2019, 06:56 PM
gtopappy gtopappy is offline
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Default Cragar S/S wheels for '66 GTO

Will Cragar part number 61815, 15X8, 4 1/4 back space fit the rear body without rubbing using 70 series or 60 series tires? Stock rear end etc. on a 1966 GTO.

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Old 12-15-2019, 07:42 PM
younggto younggto is offline
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Can’t help you on the size specifically (backspace sounds right as 66 rearends were typically narrower than 67s but measuring the width would be a good idea; who knows if it was changed) but you can order the wheels direct drill instead of unilug; much better fit IMO. Contact Cragar or Summit/Jegs and they should be able to help with a part number.

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Old 12-16-2019, 06:34 AM
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The Champ The Champ is offline
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It all depends on the width of the 60 or 70 series tires you want to run. What size tires are you running now and what are the specs of your current rims? With that information, you can do the math to see how the new rims will work on your car.

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Old 12-16-2019, 11:51 AM
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Skip Fix Skip Fix is offline
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I can tell you the 15-8 inch 4" I bought for the Impala project will not fit the 65 GTO I have. Need more back space. But the 4 1/4" 15-8 Trans Am honey comb and Turbos do fit fine.

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1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
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Old 12-16-2019, 12:24 PM
gtopappy gtopappy is offline
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Thanks to all of you for your suggestions etc.

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Old 12-16-2019, 12:44 PM
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Skip Fix Skip Fix is offline
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I have 275-60-15s on the 65 right now as they were on the extra wheels. Don;t 66-67 have a little wider wheel well?

http://forums.maxperformanceinc.com/...&highlight=gto

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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
  #7  
Old 12-22-2019, 11:07 PM
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David Jones David Jones is offline
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Though a different animal, I run the 61815’s on my 69 mounted with 255/60-15’s. On my 69 no way a 275 would fit. My personal opinion is it would be too tall if it would fit.

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1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core.
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