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06-03-2006, 10:07 AM
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#1 |
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Registered User
Join Date: Feb 2005
Location: Harrison TN
Posts: 183
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373 gear
I have a 373 rearend .If I run 17'' wheel with a 255/60-17 tire front and 285\60-17 rear what gear ratio do i have?
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06-03-2006, 10:45 AM
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#2 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: 373 gear
373 your gear ratio stays the same no matter what tire you have
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06-03-2006, 11:43 AM
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#3 |
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Registered User
Join Date: Jan 2006
Location: Kaufman, Tx
Posts: 827
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Re: 373 gear
Tire size efeects the final drive ratio. But you'll have to find someone better at math than myself to tell you what that is. It seems like I had found a website that lets you plug in numbers and it does the calc for you. Maybe someone here has the link?
Jay
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You only need two tools in life - WD-40 and Duct Tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape. If a hammer doesn't fix it, you have an electrical problem! Slot Cars, 1:24 Scale, 100MPH@100,000RPM, fastest things on wheels! 
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06-03-2006, 01:00 PM
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#4 |
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Registered User
Join Date: Feb 2005
Location: Harrison TN
Posts: 183
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Re: 373 gear
Thats what I"M looking for.I"M going from 15'' to 17''.
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06-03-2006, 01:22 PM
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#5 |
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Captain Ed
Join Date: Jul 2003
Location: Port Charlotte, FL
Posts: 1,241
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Re: 373 gear
Email me at ebinnix@yahoo.com and I'll send you a spreadsheet that will calculate how gears and tire size affects RPM's and MPH.
Ed .
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If you ain't bleedin', you ain't workin'! 1999 C3500 LS 7.4L Last edited by ed455; 06-03-2006 at 01:22 PM. |
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06-03-2006, 03:39 PM
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#6 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: 373 gear
the rim size doesn't matter a bit. The overall diameter is what you need to know.
Don't expect any major chainges, it'll drop your RPMs by 100 or so, and your speedo will be off by just a few MPH. (guestimates of course) |
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06-03-2006, 06:18 PM
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#7 |
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Happy to be here
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: 373 gear
Look to the left side of this page. It has a set of calculators that will help you out...http://www.4lo.com
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06-04-2006, 07:00 PM
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#8 |
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67 is sold
Join Date: Apr 2001
Location: Troy, Michigan
Posts: 6,738
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Re: 373 gear
Increasing overall tire height makes that 3.73 number 'smaller'
looks like some good resources above. You can also search Google.com for tire gear calculations or things like that Good Luck 
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06-05-2006, 09:49 AM
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#9 |
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Registered User
Join Date: May 2005
Location: Texarkana, AR 71854
Posts: 397
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Re: 373 gear
3000RPM you truck will run 69.53753351206434 mph
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