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what speedo gear ????? #1456240 06/21/13 11:13 PM 06/21/13 11:13 PM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars OP top fuel
Dougsmopars OP top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	4 speed car 3:91 gears. How many tooth gear do i need? 255/60R15 rear tires. There 27 inches tall. 7750605-superbee003(Mobile).JPG (76 downloads) Last edited by Dougsmopars; 06/21/13 11:25 PM.

Re: what speedo gear ????? [Re: Dougsmopars] #1456241 06/21/13 11:19 PM 06/21/13 11:19 PM
Joined: Jul 2003 Posts: 3,464 Back in NJ.... E EWJ master
EWJ master E Joined: Jul 2003 Posts: 3,464 Back in NJ....	check the tech archives here on the board- you'll find what you need. Ed EastCoast Land Yacht Assoc. 1967 Newport Conv: 440/4 speed 1969 GTX: 440/4 speed, TX9/TX9, A34, N96 1970 Super Bee: 383/4 speed, B5/B7 1970 Coronet RT: 440/4 speed, A34, N96 1970 Coronet RT: 440/auto, A36, N96 1970 Road Runner convertible: 383/4 speed TX9/D6XW 1970 GTX: 440+6/727, A32, N96 2001 Dodge 2500 HO CTD, 6 speed, 4x4 quad cab long bed "The early bird may get the worm, but the 2nd mouse gets the cheese".

Re: what speedo gear ????? [Re: EWJ] #1456242 06/21/13 11:29 PM 06/21/13 11:29 PM
Joined: Mar 2003 Posts: 5,193 NEW JERSEY AARCONV master
AARCONV master Joined: Mar 2003 Posts: 5,193 NEW JERSEY	got mine from a mopar parts book..

Re: what speedo gear ????? [Re: AARCONV] #1456243 06/21/13 11:50 PM 06/21/13 11:50 PM
Joined: Jan 2003 Posts: 32,930 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,930 Grand Prairie,Texas	TECH Archives. http://www.moparts.org/Tech/tech/pages/speedo.html

Re: what speedo gear ????? [Re: Dougsmopars] #1456244 06/22/13 08:07 AM 06/22/13 08:07 AM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	Quote: 4 speed car 3:91 gears. How many tooth gear do i need? 255/60R15 rear tires. There 27 inches tall. I get a 37.90 tooth count = 38 tooth gear needed

Re: what speedo gear ????? [Re: scratchnfotraction] #1456245 06/22/13 08:09 AM 06/22/13 08:09 AM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars OP top fuel
Dougsmopars OP top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	Thanks

Re: what speedo gear ????? [Re: Dougsmopars] #1456246 06/22/13 09:08 AM 06/22/13 09:08 AM
Joined: May 2005 Posts: 4,727 Florida BDW master
BDW master Joined: May 2005 Posts: 4,727 Florida	Formula is (((5280 / (C/12)) * RG ) / 1000 ) * 13 5280 = ft in mile C = circumference of tire = tire diameter x pi = D x 3.1416 RG = Rear end gear

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