what size rear end gears came stock in a 75 monte
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Limey SE
pila
ant7377
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what size rear end gears came stock in a 75 monte
by alive 75 Tue Jan 28, 2014 3:04 pm
has a 350 and came with a 4 bbl from the factory, probably a 350 trans 
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Re: what size rear end gears came stock in a 75 monte
by Joe73 Tue Jan 28, 2014 3:09 pm
Diameter? Probably 7.5" Ratio? Matters what options were put in or ordered.
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Re: what size rear end gears came stock in a 75 monte
by 77mali Tue Jan 28, 2014 3:17 pm
Check your code numbers to cross reference them. There's a bunch of info on here through the home page under Chevy. The code is stamped on the axle, passengers side between the brake hub & the axle housing, on the side that faces to the front of the car, usually.
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Re: what size rear end gears came stock in a 75 monte
by 77mali Tue Jan 28, 2014 3:23 pm
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Re: what size rear end gears came stock in a 75 monte
by ant7377 Tue Jan 28, 2014 5:36 pm
8.5 rear its probably a 2.73 but could even lower.
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Re: what size rear end gears came stock in a 75 monte
by pila Tue Jan 28, 2014 7:23 pm
I don't believe the 7.5 was used until the '78 models, G bodies etc The 8.5 will take a lot of punishment, from a small block, at least mine have.
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Re: what size rear end gears came stock in a 75 monte
by dynchel Tue Jan 28, 2014 7:33 pm
I think some '77's had 7.5's.
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Re: what size rear end gears came stock in a 75 monte
by Limey SE Wed Jan 29, 2014 1:04 am
My 77 has a 2.56 ick ick
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Re: what size rear end gears came stock in a 75 monte
by dynchel Wed Jan 29, 2014 5:49 am
2.56Limey wrote:My 77 has a 2.56 ick ick
those sound like salt flats gears.
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Re: what size rear end gears came stock in a 75 monte
by Dinomyte Wed Jan 29, 2014 9:24 am
My '77 Malibu has a 8.5" with 2.56:1 gears. salt flats is right.
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Re: what size rear end gears came stock in a 75 monte
by Pontichev327 Wed Jan 29, 2014 5:55 pm
Most seem to come with 3.08 or 2.73. Spin the tire by hand and count the rotations of the driveshaft compared to the tire.
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Re: what size rear end gears came stock in a 75 monte
by alive 75 Thu Jan 30, 2014 8:41 pm
yeah i was thinking about counting the rotation of the drive-shaft, thanks for the info
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