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What Will Safely Fit My Wheels? |
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WhatISit 
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Joined: Aug/07/2017 Location: Phoenix, AZ Status: Offline Points: 0 |
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 Topic: What Will Safely Fit My Wheels?Posted: Oct/20/2017 at 8:38pm |
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I believe I have the 14x5.5" (or are they 14x6"?) wheels on my '74 Javelin AMX. Any idea on what the largest width tire is that I can fit on there without any issues? I talked to my dad, and he thinks 245 60-14's will fit on the rear, but I think that might be a little too wide and a little too tall. Any help? Thanks!
 Edited by WhatISit - Oct/20/2017 at 8:42pm |
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Sonic Silver
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Joined: Nov/23/2011 Location: East Tennessee Status: Offline Points: 7949 |
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Posted: Oct/20/2017 at 8:55pm |
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jpnjim
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Joined: Nov/25/2007 Location: New England Status: Offline Points: 2752 |
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Posted: Oct/21/2017 at 12:01pm |
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My opinion,
A 245/60-14 is too wide for a 14x6 It's been done thousands of times, you won't fly off the road and hit a school bus full of nuns if you do it, but most 245/60-14's are wider than what I would run on a 6" wheel. Math time, 245 is the tire section width in milimeters ^not the tread width, but the "section width"/widest part of tire IE: the buldge 245 x.03937 = 9.65" wide The difference between the 9.65" tire and the 6" wheel is even more of an issue since it's a relatively short profIle 60 series tire (tire height is 60% of the width = 5.79" sidewall) Me, I would use a 225/60-14 on that wheel, if I didn't think that tire was tall enough for the look I wanted, I'd go with a 225/70-14, or even a 235/70-14. Check the tire manufacturers recommendations of whatever tires you're considering and see what they suggest as well. Good luck Edit, fat fingers math + clarify
Edited by jpnjim - Oct/21/2017 at 12:12pm |
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71 P-code 4spd Javelin/AMX
some Jeeps and some Fords |
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jpnjim
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Joined: Nov/25/2007 Location: New England Status: Offline Points: 2752 |
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Posted: Oct/21/2017 at 12:07pm |
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Your car looks great by the way
 What size tires are on it now? If it were me I'd try to get 15x7's for the back, paint them to match the fronts, run a 255/60-15 on the 7's & keep those 14" rear tires as spares
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71 P-code 4spd Javelin/AMX
some Jeeps and some Fords |
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WhatISit
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Joined: Aug/07/2017 Location: Phoenix, AZ Status: Offline Points: 0 |
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Posted: Oct/21/2017 at 1:27pm |
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Thanks, guys! Would a 70 series tire be too tall? And would it affect my speedometer at all? Also, I’m planning on maybe getting 15x7 Superlites for the front and 15x8s for the rear at some point—just wanted a little wider tires for the time being. It only has a 304, so it’s not gonna boil the tires off or anything, I just wanted something that looks a little bit better. My dad has the car in Wisconsin, but I think it has 215‘s on right now, front and back.
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nickleone
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Joined: Oct/04/2008 Location: westminster co Status: Offline Points: 1441 |
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Posted: Oct/21/2017 at 4:47pm |
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Speedo correction calculator: https://tiresize.com/speedometer-calibration/ Nick
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nick
401 71 Gremlin pro rally car sold 390 V8 SX/4 pro rally car sold 1962 Classic SW T5 4 wheel disc brakes |
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nickleone
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Posted: Oct/21/2017 at 4:57pm |
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More info{ https://tiresize.com/comparison/ Nick
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nick
401 71 Gremlin pro rally car sold 390 V8 SX/4 pro rally car sold 1962 Classic SW T5 4 wheel disc brakes |
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990V8
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Posted: Oct/21/2017 at 4:59pm |
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I think it looks pretty spiffy the way it is.
Bigger tyres make the car accelerate slower and stop slower, due to the additional centrifugal mass. And tyres that are too wide for the wheels give lousy handling. Ivor |
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63 Canadian Ambo 990 V8 327
74 LandRover Lightweight V8 SIII Shopping Trolley |
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dltowers
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Posted: Oct/21/2017 at 7:23pm |
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Dan, I cannot believe what I am seeing....
Another '74 that still has the "Strike Substitution Steel Wheels".... **And, they are also color match to the exterior car paint.... I thought only my wife had this done....  |
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Original Owner, 1974 Javelin:
360ci,2v,727TC. Motorola Multiplex with 8-Track. G4 Plum exterior with 421Q Black Uganda Interior. Purchased on July 16, 1974 from Hooker AMC, Sherman, TX for $4500.20 |
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DaemonForce
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Posted: Oct/21/2017 at 7:47pm |
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When I got my 71 T-top there were mismatched wheels and tires all around
and I had to get them uniform. I went with a set of 18" diameter wheels
all around with 7" wide up front and 8" wide for the rear. I fit a pair
of 225/40 and 275/35 to match them. The rear comes out to 26.1" tall so
whatever clearance issues you think exist with your selection, I can at
least confirm 26-27" tires are a non-issue. As for what can fit on your
factory wheels I suggest 215s or maybe 225s.
BAHAHAAHAH!  |
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1971 Javelin SST
American 304 2v | FMX | AM20-3.31 1983 American Limited Jeep 4(.7)L S-MPFI | 1982 NWC T-5M (4.03/.76) | Dana30IFS/35-2.72 |
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WhatISit wrote: