#1069169 - 01/11/21 08:57 PM
speedo gear
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Joined: Jun 2001
Posts: 1,436
markg
15+ Year
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15+ Year
Member
Joined: Jun 2001
Posts: 1,436
nj
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i have a 84 monte with a 325 rear and a 200r4 trans and i run 30 in tall tires in the rear.
i put a 115 stock speedo in it.
apparently this combo is way off for my speedo calibration because it reads way low.
whatgear can i get for the trans?i dont want to chage the one on the shaft if i dont have to.
86 ss 86 cl,330hp GM vortec cratemotor-700-r trans worked,ford 9.5 inch rear with 3-50s,custom 3 inch exhaust with flowmasters.
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#1069177 - 01/12/21 02:16 PM
Re: speedo gear
[Re: markg]
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Joined: Mar 2000
Posts: 5,595
upflying
20+ Year
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20+ Year
Member
Joined: Mar 2000
Posts: 5,595
Reno, NV
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86 MCSS Notchback coupe, LS3, 4L65E, QP 9", Eaton Truetrac, 4 wheel disc, column shift, Dakota Digital, silver with maroon bench interior
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#1069179 - 01/12/21 03:47 PM
Re: speedo gear
[Re: markg]
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Joined: Jun 2001
Posts: 1,436
markg
15+ Year
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15+ Year
Member
Joined: Jun 2001
Posts: 1,436
nj
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thank you.....do any of you know what the stock gear is for a 87 ss with a 200r4?
86 ss 86 cl,330hp GM vortec cratemotor-700-r trans worked,ford 9.5 inch rear with 3-50s,custom 3 inch exhaust with flowmasters.
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#1069197 - 01/13/21 11:11 AM
Re: speedo gear
[Re: markg]
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Joined: Jun 2001
Posts: 1,436
markg
15+ Year
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15+ Year
Member
Joined: Jun 2001
Posts: 1,436
nj
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thanks....its a 200r.
the car in my signature is a different vehicle.
thank you!
86 ss 86 cl,330hp GM vortec cratemotor-700-r trans worked,ford 9.5 inch rear with 3-50s,custom 3 inch exhaust with flowmasters.
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#1069261 - 01/16/21 05:43 PM
Re: speedo gear
[Re: markg]
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Joined: Jun 2001
Posts: 1,436
markg
15+ Year
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15+ Year
Member
Joined: Jun 2001
Posts: 1,436
nj
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thank you.....the calculator says i need 457 and i have 333 now.
it looks like the closest i can get without changing the one on the trans shaft is 385 which is a 26 tooth.
this would bring me much close and i would be happy with that.
im having difficulty finding a single 26 tooth one though.
any ideas?
86 ss 86 cl,330hp GM vortec cratemotor-700-r trans worked,ford 9.5 inch rear with 3-50s,custom 3 inch exhaust with flowmasters.
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#1069263 - 01/16/21 06:51 PM
Re: speedo gear
[Re: markg]
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Joined: Apr 2009
Posts: 850
Fred SS
10+ Year
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10+ Year
Member
Joined: Apr 2009
Posts: 850
Glassboro, NJ
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You could try gbodyparts.com for speedo gears.
87 SS, Harwood cowl induction hood, UMI trailing arms. Edelbrock TES Headers (Jet Hot Coated). Goodwrench 350, Ported TPI, Trick Flow 56cc alum heads, SLP runners, Comp Cams 260AH-12 cam, Trick Flow 1.5 roller rockers, Bilsteins, TCI 2400 stall converter, Ramcharger fans, Denny's 3.5" Driveshaft, GBodyParts GNX Wheels.
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