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275 ET Street Pros on 71 Duster
#2634523
03/19/19 06:53 PM
03/19/19 06:53 PM
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Joined: Feb 2012
Posts: 394 Ohio
moparjoe360.4
OP
enthusiast
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OP
enthusiast
Joined: Feb 2012
Posts: 394
Ohio
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I bought a set of 275 /60/15 for my 71 Duster because they’re on sale but I don’t have rims yet. My car has the springs in the stock location and I’m slightly worried about them fitting. We’ve run 275/60/15 Cooper Cobras on a 73 Duster w 15x8 with 4.5bs and the were tight but they fit. Those tires list as a 10.7 section width while the ET Street pro lists as 11.4 section width. I’m just curious if anyone has run the Pros with stock location rear suspension, and what wheel combo they used.
Last edited by moparjoe360.4; 03/19/19 09:26 PM.
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Re: 275 ET Street Pros on 71 Duster
[Re: dizuster]
#2634882
03/20/19 03:55 PM
03/20/19 03:55 PM
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Joined: Jan 2003
Posts: 4,296 Chicago, IL
TonyS451
master
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master
Joined: Jan 2003
Posts: 4,296
Chicago, IL
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fwiw, back in the day on my 71 Demon I ran a 28.x11.5 hoosier quick time pro (10" tread width) on a 8" weld draglite w 4.5 backspace. Springs in stock location and they fit, but not a ton of room..
2 kids and a dog
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Re: 275 ET Street Pros on 71 Duster
[Re: TonyS451]
#2634893
03/20/19 04:19 PM
03/20/19 04:19 PM
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Joined: Feb 2012
Posts: 394 Ohio
moparjoe360.4
OP
enthusiast
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OP
enthusiast
Joined: Feb 2012
Posts: 394
Ohio
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fwiw, back in the day on my 71 Demon I ran a 28.x11.5 hoosier quick time pro (10" tread width) on a 8" weld draglite w 4.5 backspace. Springs in stock location and they fit, but not a ton of room.. That gives me hope that I can make them fit. The 11.5 QTP lists as a 11.2 section width.
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Re: 275 ET Street Pros on 71 Duster
[Re: TonyS451]
#2634894
03/20/19 04:20 PM
03/20/19 04:20 PM
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Joined: Aug 2007
Posts: 498 El Dorado Ca
65signet
mopar
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mopar
Joined: Aug 2007
Posts: 498
El Dorado Ca
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I have the ET Street 275 on my 70, i used a 1/4 inch spacer to keep the tire off the spring
1965 Plymouth Barracuda 273 M/SA 1970 Plymouth Duster 360/904 10.60s with J heads
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Re: 275 ET Street Pros on 71 Duster
[Re: moparjoe360.4]
#2635506
03/22/19 10:28 AM
03/22/19 10:28 AM
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Joined: Sep 2003
Posts: 19,305 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,305
north of coder
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fwiw, back in the day on my 71 Demon I ran a 28.x11.5 hoosier quick time pro (10" tread width) on a 8" weld draglite w 4.5 backspace. Springs in stock location and they fit, but not a ton of room.. That gives me hope that I can make them fit. The 11.5 QTP lists as a 11.2 section width. see what wheel the specs were based on. a slightly narrower wheel may pull the sidewall in a bit, allowing you to use that tire.
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Re: 275 ET Street Pros on 71 Duster
[Re: moparx]
#2635653
03/22/19 05:44 PM
03/22/19 05:44 PM
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Joined: Feb 2012
Posts: 394 Ohio
moparjoe360.4
OP
enthusiast
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OP
enthusiast
Joined: Feb 2012
Posts: 394
Ohio
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fwiw, back in the day on my 71 Demon I ran a 28.x11.5 hoosier quick time pro (10" tread width) on a 8" weld draglite w 4.5 backspace. Springs in stock location and they fit, but not a ton of room.. That gives me hope that I can make them fit. The 11.5 QTP lists as a 11.2 section width. see what wheel the specs were based on. a slightly narrower wheel may pull the sidewall in a bit, allowing you to use that tire. This is exactly what I’m hoping, they call for a 7.5-9.5 rim width according to Summit. The 73 340 duster we built had Cooper cobra 275/60/15s on an 8” rim with 4.5 B.S and the belly of the tire was 1/4-3/8” from the springs . I’m looking at running stock steel 15x7 Fifth Ave/ Diplomat wheels that have about 4-4 1/4 B.S. if all else fails I’ll move the perches on the 8 3/4 and buy the offset shackle Kit.
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